Ready for adventure, this drop handlebar features a robust aluminium construction for a fantastic balance of strength and durability as you explore gravel roads, forest paths and even singletrack. Zipp has also equipped this model with bar drops that provide a wider, balanced, and more secure position, with drops that are about 6cm wider than the hoods position for technical or intense riding. Another highlight is its ergonomic top with an extended 100mm clamping area for computer mounts, aero-extensions, bags, and whatever else you may need for the long haul. Aluminium Drop Handlebar Zipp’s answer—true to the brand's fit-first philosophy for handlebar design—is an innovative all-road bar the Service Course SL 70 XPLR. The bar’s moniker, XPLR, exemplifies the desire to explore the world with an expanded definition of cycling on a drop bar bicycle from paved roads onto gravel, mud, dirt, and even singletrack. The Service Course SL 70 XPLR helps you go faster by placing your body, starting with your hands, in an optimal “comfort zone” position for hours of rough riding over mixed terrain. Today’s riders demand a few things out of their cockpit, whether they are doing a two-hour training ride from home or a 200-mile gravel adventure: comfort, control, and the ability to carry what they need. Zipp met these needs by creating a bar with shallow and wide drops, specifically focusing on two crucial metrics—outsweep and flare. Technologies: - Bar drops provide a wider, balanced, and secure position with drops that are about 6cm wider than the hoods position for technical or intense riding. - The 70 XPLR also features an ergonomic top with an extended 100mm clamping area for computer mounts, aero-extensions, bags, and whatever else you may need for the long haul. Manufacturer's Part Numbers: 00.6618.146.000 Black/Black 40cm 00.6618.146.001 Black/Black 42cm 00.6618.146.002 Black/Black 44cm
Featuring a high-quality carbon build, this road bike stem offers an excellent combination of stiffness, durability and low weight performance as it securely connects your handlebar to your fork's steerer tube. Thanks to its robust steel hardware, it also delivers a strong and reliable hold, wherever your next ride takes you. Another benefit is its matte finish with stealth decals, which gives your road bike's steering setup a sleek finish. Carbon Road Bike Stem with SRAM Exogram Technology The SL Sprint Stem is an ideal balance of stiffness and lightweight. The stem weighs in at just 1.8g per newton meter of stiffness using SRAM’s Exogram technology. Designed with feedback from top pros to meet the unrelenting demands of Grand Tour sprinters. Zipp also tapped into expertise gained from its pioneering carbon stems and exhaustively researched the marketplace to create the SL Sprint Stem. The SL Sprint comes with its own stem cap that’s designed to be aerodynamically efficient by blending into the stem body. Available in six sizes ranging from 90 to 140mm to meet any rider’s fit needs. Technologies: - Updated distinctive Zipp cosmetics. - Carbon Exogram™ construction delivers the stiffest stem on the market gram for gram. - Secure with four bolt faceplace using Torx© T25 bolt heads. - Matte Black finish. - Lifetime warranty. - Zipp Quickview integrated computer mount available separately. Manufacturer's Part Numbers: ZS8043000 Matte Black 90mm ZS8043001 Matte Black 100mm ZS8043002 Matte Black 110mm ZS8043003 Matte Black 120mm ZS8043004 Matte Black 130mm ZS8043005 Matte Black 140mm
This versatile stem features a unidirectional (UD) carbon construction, which allows it to deliver a fantastic combination of stiffness, strength and durability ride after ride. Zipp has also kitted out this version with a natural carbon matte finish for an extra layer of toughness without adding any unnecessary grams to your steering setup. Another benefit is its titanium hardware, which ensures a tight and secure connection when mounting the stem between your handlebars and your fork's steerer tube. As a result, it's suitable for a wide range of disciplines including road, gravel and cyclocross. Carbon Stem with SRAM Exogram Technology Zipp’s SL Speed stem represents the essence of carbon componentry. It’s stiff, secure and lightweight with a sleek design that compliments any bike. It’s a perfect addition to a mountain climber’s favourite feather-light road bike, but it’s tough enough to tackle gravel and cyclocross. Designed using SRAM Exogram technology, found in SRAM RED cranks, the SL Speed Stem weighs just 123g (100mm) while exceeding Zipp's stiffness-to-weight standards. The SL Speed is available in six sizes ranging from 70 to 120mm to meet any rider’s fit needs. Includes a stiff aluminium faceplate and titanium hardware Torx® T25 heads for precise torque readings and ease of adjustment. Technologies: - Updated distinctive Zipp cosmetics. - Designed using SRAM Exogram technology. - SL Speed Stem weighs just 123g (100mm). - ±6° carbon stem. - Secure with four-bolt faceplace using Torx© T25 bolt heads. - Matte Black finish. - Lifetime manufacturer's warranty. - Zipp Quickview integrated mount available separately. Manufacturer's Part Number: 00.6518.042.000 Black 70mm 00.6518.042.001 Black 80mm 00.6518.042.002 Black 90mm 00.6518.042.003 Black 100mm 00.6518.042.004 Black 110mm 00.6518.042.005 Black 120mm
This versatile seatpost is suitable for both road cycling and gravel adventure riding, thanks to its special shock-absorbing properties and increased comfort. Zipp has also put this model through a strict mountain bike (MTB) strength test, so you can enjoy offroad durability and support on your road or gravel bike. Benefitting from a unidirectional (UD) carbon construction, it provides the best balance of stiffness, strength and low weight performance as you conquer every mile of road. Another highlight is its AL7075 aluminium head and robust steel hardware, which ensures a tight and secure hold to your saddle rails whatever the terrain conditions. Adjustable Carbon Seatpost The carbon Service Course SL seatpost is specifically tuned to be more shock-absorbing than the “comfort” seatposts on the market, while still passing Zipp's strict internal MTB strength test. Flex engineered into the lightweight carbon tube keeps the rider comfortable over any terrain. Better fit means better performance, and if your saddle is out of position, you’ll waste energy with every pedal stroke. The secure, two-bolt clamp makes for easy micro-adjustments of saddle position, and the head has been redesigned for maximum bolt head accessibility. With 0mm and 20mm setback options to choose from, it’s possible for nearly any rider to achieve the perfect fit, and the clamp works with all saddle rail types. Technologies: - Distinctive Zipp cosmetics. - Unidirectional Carbon fiber tuned for ride comfort. - Lightweight clamping system. - Lifetime manufacturer's warranty. Manufacturer's Part Numbers: ZSP8056000 Matte Black 31.6mm x 400mm 20mm Setback ZSP8056001 Matte Black 25.4mm x 400mm 20mm Setback ZSP8056002 Matte Black 27.2mm x 400mm 20mm Setback ZSP8057000 Matte Black 31.6mm x 400mm 0mm Setback ZSP8057001 Matte Black 25.4mm x 400mm 0mm Setback ZSP8057002 Matte Black 27.2mm x 400mm 0mm Setback
Ready for every mile of road, this seatpost comes equipped with a hard-wearing 6061 aluminium construction for an excellent combination of strength and durability on your road bike. Zipp has also kitted out this model with a 6061 aluminium clamp and steel hardware, so you can benefit from a tight and secure hold to your saddle rails whatever the conditions. Another highlight is its etched Zipp logo finishing, which gives it a sleek appearance to complement your ride. Adjustable Road Bike Seatpost Zipp’s Service Course seatpost is lightweight and strong for security and designed to offer a precise fit at an affordable price. It also provides easy tool access to the downward facing bolt for easy setup and micro-adjustments after it’s mounted. Better fit means better performance to make you faster. An out-of-position saddle means wasted energy with every pedal stroke. The secure, low-profile clamp allows the saddle to slide farther back along the rails, and with this 20mm setback option, it’s possible for nearly any rider to achieve the perfect fit. For high strength, low weight, and efficient use of every gram, the shaft and head are not bonded but are 3D-forged from 6061 aluminium. The Service Course seatpost is 350mm in length. Technologies: - 2-bolt adjustability. - 3D-forged from 6061 aluminium. - Fits all common saddle rail types. - Lifetime manufacturer's warranty. Manufacturer's Part Numbers: ZP8048001 Silver 31.6mm x 350mm ZP8048000 Silver 27.2mm x 350mm
Crafted from 6066 series aluminium, this road bike base bar offers superior aerodynamics and ergonomics at an affordable price. The Vuka Alumina base bar delivers on a big challenge given to Zipp's engineers – create a high-performance aluminium base bar that’s sleek and light with the right amount of adjustability. Base Bar with Internal Cable Routing The Vuka Alumina base bar is sleek with clean internal cable routing for easy installation. Handgrips are angled upward by 5 degrees for a natural wrist position when climbing or sprinting. The bar’s mounting area is 120mm wide to allow for an array of positions to accommodate many riding styles and body types. The Vuka Alumina is compatible with all current drive-train systems and all plug-in-style brake levers. It’s optimised for use with the Vuka Clip but is compatible with most clip aerobars on the market. Bead Blast Finish The Vuka Alumina is lightweight at 250 grams, has a 40cm (centre-to-centre) width and a 31.8mm clamp diameter. Its bead blast black finish with gloss graphics mean the bar looks as smooth as it performs. Manufacturer's Part Number: ZP8168000 Blast Black 40cm 31.8mm
This aero handlebar is equipped with Zipp's renowned Rapid Route internal cable routing system. Rapid Route cable exits are conveniently positioned on this bar for easy installation of your brake cables, so you can enjoy straightforward integration with your time trial (TT) or triathlon bike. Carbon Wing-Shaped Aero Bar With its wing-shaped bar top, the SL-70 Aero features Zipp’s latest bar refinements while building on the trend-setting aero legacy of the VukaSprint. The wing-shaped top was designed using Computational Fluid Dynamics (CFD). The difference of that design is real, saving 6.4 watts over a round-tube section bar top. Beyond aero performance, the SL-70 Aero features a 70mm reach to allow proper fit without compromising stem length and steering control. The revised 10-degree ramp angle to the brake hoods eliminated the need for up-rotated bars. The bar also provides ample wrist clearance for riding and sprinting in drops. The SL-70 Aero is not compatible with internal routing of DI2 wires, or the bar end junction. Manufacturer's Part Numbers: 38cm: ZHB8203000; 40cm: ZHB8203001; 42cm: ZHB8203002 and 44cm: ZHB8203003
Whether you're training or competing, this road bike drop handlebar is engineered for smooth, light and dependable steering performance. It features a hard-wearing 7050 aluminium build, which makes it more than capable of handling all of the intensity associated with racing. Zipp has also equipped this model with comfortable geometry, so you can benefit from smooth transitions and ergonomic hand positioning. Another highlight is its clip compatible design, which allows you to add clip-on aerobars (available separately) for an even broader range of positioning and comfort. Weighing in at only 275g, this is a lightweight choice of upgrade for dominating your way to the finish line. Race-Ready Road Bike Drop Handlebar A traditional road racer’s bar, the Service Course SL-88 helps you achieve a “long-and-low” position on the bike. The ends of the drops provide a horizontal flat position for the rider to rest straight down upon. This versatility comes from the bar’s longer 88mm reach (the horizontal distance from the bar’s stem clamp area to centre of the brake perch) and deeper 130mm drop (vertical distance from the bar’s stem clamp area to bottom of drops). In addition, the bar’s 14° ramp angle provides a smooth transition to the brake hoods for a comfortable ergonomic hand position on the hoods. 7050 aluminium. Lightweight and durable. Drops are angled outward by 3 degrees to reduce wrist strain. Clip compatible. Manufacturer's Part Numbers: 00.6618.026.030 Black/Black 40cm 00.6618.026.040 Black/Black 42cm 00.6618.026.050 Black/Black 44cm
It boasts an excellent aerodynamic design, stiff and strong UD carbon fibre construction, and efficient internal cable routing. The SL-70 Aero bar also benefits from Zipp's Computational Fluid Dynamics (CFD), which was used to design their World class Firecrest® wheels. So, with these bars, you can be sure you’re getting the very best technology to give you the edge on race day.
The Service Course SL-80 has been specially designed for the thrill-seekers and road racing adrenaline junkies for the ultimate drop bar experience. Boasting ultra-lightweight and strong 7050 aluminium construction that's fully clip compatible, you can be assured that this bar has been manufactured for years of long-lasting use. Engineered to be just as comfortable in the drops as it is in the hoods or top of the bar, the ergonomics of this model allow you to maintain a neutral wrist position. Thanks to its carefully constructed profile, there's no need for an upward rotation on the bar thanks to its slight outward angling which reduces wrist strain. This state-of-the-art bar is named after its 80mm reach which helps place the levers and drops where you want them without having to think about a shorter stem.
Whether you're conquering your next training session or racing in an event, this drop handlebar is engineered for smooth and reliable performance. It features a hard-wearing 6061 aluminium construction, which gives it excellent strength and durability as you clock up the miles on your road bike. Zipp has also equipped this model with comfortable geometry, which includes seven degrees ramp angle and four degrees outsweep for simple and supportive handling. Another highlight is its clip-on compatibility, which means you can add clip-on extensions (available separately) for a wider range of hand positions as well as further increased comfort. Coming complete with a sleek finish, this is a perfect choice of upgrade for smooth and dependable steering performance, with eye-catching style. Ergonomic Drop Handlebar with 80mm Reach Zipp Service Course 80 Ergo handlebar is all about making you faster in style and comfort. It features an ergonomic flat top. The drop shape features an 80mm reach and 125mm drop, perfect for a rider looking for a medium reach and shallow drop who likes reaching down to, rather than into, the drops. The bars feature a 7° ramp angle for a flat transition to the hoods and a 4° outsweep at the drops. In addition to the ergonomic benefits, the Service Course 80 Ergo is the brand's first ergo bars to be clip-on compatible. The Service Course 80 Ergo bar uses 6061 aluminium to tip the scales at 315g for a 42cm-wide bar. Technologies: - 6061 aluminium for light weight and durability. - 80mm reach and 125mm drop for a medium-high position. - Flattened top shape with 3° backsweep for wrist comfort. - Clip-on compatible (40, 42, 44cm sizes only). - Di2® RS910 junction compatible. Manufacturer's Part Number: ZP8166000 Silver 38cm 70mm Clamp ZP8166001 Silver 40cm 90mm Clamp ZP8166002 Silver 42cm 90mm Clamp ZP8166003 Silver 44cm 110mm Clamp
Prepared for clocking up the miles on your road bike, this sleek drop handlebar boasts a hard-wearing 6061 aluminium build that makes it strong and reliable wherever your next ride takes you. Zipp has also equipped this version with comfortable geometry including seven degrees ramp angle and four degrees outsweep, which allows for smooth and supportive steering as you put the power down. Another highlight is it's clip-on compatible, so you can add clip-on extensions (available separately) for an even greater choice of positioning. Coming complete with an eye-catching finish, this is a great choice of upgrade for performance-focused steering with stylish looks that complement your ride. Aluminium Drop Handlebar with 80mm Reach The Service Course 80 bar provides what today’s riders demand—comfortable and efficient positions on the tops or hoods or that aero and efficient position in the drops. The bar allows a neutral wrist position on the drops and a flat brake hood transition for the athlete even while riding with a more upright position. Drops are angled outward by 4 degrees to reduce wrist strain. Named after its 80mm reach, the bar brings the hoods and control levers back where you want them, while keeping the drops close. The ergonomic 125mm drop places the angled drop position where you can easily reach it while maintaining a neutral wrist angle. All of this performance results in greater speed at a price that won’t break your budget. Manufacturer's Part Numbers: ZP8164001 Silver 40cm ZP8164002 Silver 42cm ZP8164003 Silver 44cm ZP8164000 Silver 38cm
This drop bar features a matte nano-blast aluminium construction, which makes it incredibly durable as you clock up the miles on the road. Its 80mm reach and 125mm drop combination is designed to fit a large number of riders and provide more efficient positioning on the bar tops, brake hoods or down in the drops. Comfortable Road Bike Drop Bar Designed for a comfortable and controlled experience, this drop bar allows for a neutral wrist position on the drops and a flat brake-hood transition. This minimises the need for up-rotated bars. Drops are angled outward by 4 degrees, reducing wrist strain. Named after its 80mm reach to bring the hoods and control levers back where you want them. The ergonomic 125mm drop places the angled drop position where you can easily reach it while maintaining a neutral wrist angle. The SL-80’s rounded bar top is also clip-on compatible. Manufacturer's Part Numbers: ZHB8198000 Black Matte 36cm ZHB8198001 Black Matte 38cm ZHB8198002 Black Matte 40cm ZHB8198003 Black Matte 42cm ZHB8198004 Black Matte 44cm ZHB8198005 Black Matte 46cm
Whether you're exploring gravel roads or adventuring across the mountain, this multi-discipline drop handlebar is developed for performance. It features a durable aluminium construction, which allows it to handle all of the pressure that's associated with long days on the road and weekend adventures in the countryside. Its geometry is also designed to help you go faster by placing your body, starting with your hands, in an optimal comfort zone position. This makes it more comfortable to hold onto as you tackle paved roads, gravel, mud, dirt and even singletrack. Comfortable Alloy Drop Handlebar Today’s riders demand a few things out of their handlebar set-up, whether they are doing a two-hour training ride from home or a 200 mile gravel adventure: comfort, control, and the ability to carry what they need. Zipp met these needs by creating a bar with shallow and wide drops, specifically focusing on two crucial metrics—outsweep and flare. Outsweep is created by rotating the drop below the brake perch outward. Flare is created by rotating the entire drop above the brake perch outward. Manufacturer's Part Numbers: ZP8165001 Silver 44cm ZP8165002 Silver 46cm ZP8165000 Silver 42cm
This road-ready stem is crafted from robust 7075 aluminium, which allows it to offer exceptional strength, stiffness and reliability on every mile. Its titanium hardware also ensures that your ride is bolted together safely and securely, so you can enjoy a maximum hold between your road bike's handlebars and your fork's steerer tube. With a sleek shape that boasts 1.85 grams per newton metre of stiffness, this road bike stem is incredibly strong without adding any unnecessary weight to your ride. As a result, you'll benefit from no-flex spring and accelerations. To meet every rider’s fit needs, the stem is available in ±6° and ±17° angles and seven lengths from 70 to 130mm, as well as 140 & 150mm lengths for the ±6° stem only.
This drop handlebar features a durable aluminium construction, which allows it to handle all the abuse that's associated with training and competing on your road bike. It's equipped with 80mm of reach and a 125mm drop, this model is perfect for riders who want to benefit from a medium reach with a shallow drop. As a result of its design, you can reach down to the drops rather than into the drops. Lightweight and Comfortable Road Bike Drop Bar With a flattened top and 3° backsweep, this handlebar provides a neutral wrist position on the tops. Its 7° ramp angle also delivers a flat transition to the hoods and a 4° outsweep at the drops. In addition to the ergonomic benefits, the Service Course SL 80 Ergo is Zipp's first ergo bar to be clip-on compatible, so riders can enjoy an even greater choice of positions than before. Weighing only 275g for the 42cm-wide bar, this is a great choice of upgrade for road riders who want increased stiffness and comfort without adding any unnecessary weight to their ride. Manufacturer's Part Numbers: ZHB8199000 Black Matte 38cm ZHB8199001 Black Matte 40cm ZHB8199002 Black Matte 42cm ZHB8199003 Black Matte 44cm
This drop handlebar features a rock-solid 6061 aluminium construction, which makes it suitable for conquering the demands of training and racing. Its contoured top offers a natural ergonomic grip on the bar tops, while its specially tuned drop shape creates more comfortable hand positioning. Zipp has also equipped this version with a shorter 70mm reach for easier control of your levers, making it vital for racing situations. This model's reach is the shortest of the Service Course series. Coming complete with a 128mm drop, it places the rider low and in control without compromising comfort. Manufacturer's Part Numbers: ZP8163000 Silver 38cm ZP8163003 Silver 44cm ZP8163001 Silver 40cm ZP8163002 Silver 42cm
Wider Carbon Fibre Rim for Better Aerodynamics The 303 Firecrest Tubeless Disc brake wheels were designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). This included Zipp’s RollingRoad™ Testing Protocol. The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 30mm outside width, a 25mm internal width and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tyre, boosting aero efficiency on the road. Faster Performance These wheels are faster, lighter and more capable over varied terrain, whether the surface is tarmac in all its conditions or no tarmac at all. Deeply rooted in Zipp’s drive to conquer the Spring Classics, the revised 303 Firecrest is redesigned with a purpose-made approach for the demands of modern road bikes. This is the first Zipp wheelset to feature TSE™ Technology (Total System Efficiency). The 303 Firecrest’s precise rim layup results in greater all-around efficiency for greater speed through reduced wind resistance, rolling resistance, a lower weight, increased durability and vibration losses. More Comfortable Ride on Mixed Terrain The wide rim stance also features less tyre deflection for reduced rolling resistance. The combination of the wider tyre, increased tyre volume and lower tyre pressure reduces rider fatigue. This is because the ride is smoother over imperfect surface conditions as the tyre and wheel system absorbs the shaking, not the rider. At the centre of the 303 Firecrest Tubeless Disc brake is a versatile and durable hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker pedalling response. The 303 Firecrest Tubeless Disc-brake wheelset is for those after greater efficiency for greater speed. The payoff is a smoother, faster ride. Additional Features: Updated Zipp graphics and cosmetic identity that scream speed Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile Lower in weight - a 300g weight reduction than its predecessor, making it nimble and fast Tubeless Made Easy, optimised tyre bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tyre Ultra-wide 25mm rim profile creates a better tyre interface to be fast on or off the road 40mm rim depth makes a light and aero wheel in every situation ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement Ships with 12mm front and rear end caps Centre locking rotor interface Lockring is included with the wheels Lifetime Warranty
Wider Carbon Fibre Rim for Better Aerodynamics The 303 Firecrest Tubeless Disc brake wheels were designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). This included Zipp’s RollingRoad™ Testing Protocol. The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 30mm outside width, a 25mm internal width and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tyre, boosting aero efficiency on the road. Faster Performance These wheels are faster, lighter and more capable over varied terrain, whether the surface is tarmac in all its conditions or no tarmac at all. Deeply rooted in Zipp’s drive to conquer the Spring Classics, the revised 303 Firecrest is redesigned with a purpose-made approach for the demands of modern road bikes. This is the first Zipp wheelset to feature TSE™ Technology (Total System Efficiency). The 303 Firecrest’s precise rim layup results in greater all-around efficiency for greater speed through reduced wind resistance, rolling resistance, a lower weight, increased durability and vibration losses. More Comfortable Ride on Mixed Terrain The wide rim stance also features less tyre deflection for reduced rolling resistance. The combination of the wider tyre, increased tyre volume and lower tyre pressure reduces rider fatigue. This is because the ride is smoother over imperfect surface conditions as the tyre and wheel system absorbs the shaking, not the rider. At the centre of the 303 Firecrest Tubeless Disc brake is a versatile and durable hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker pedalling response. The 303 Firecrest Tubeless Disc-brake wheelset is for those after greater efficiency for greater speed. The payoff is a smoother, faster ride. Additional Features: Updated Zipp graphics and cosmetic identity that scream speed Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile Lower in weight - a 300g weight reduction than its predecessor, making it nimble and fast Tubeless Made Easy, optimised tyre bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tyre Ultra-wide 25mm rim profile creates a better tyre interface to be fast on or off the road 40mm rim depth makes a light and aero wheel in every situation ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement Ships with 12mm front and rear end caps Centre locking rotor interface Lockring is included with the wheels Lifetime Warranty
Zipp has equipped this model with tubeless tyre compatibility, so you can enjoy the benefits of superior stability and control as well as a lighter overall weight. Another highlight of this version is its disc brake compatibility, which means that you'll benefit from powerful and consistent braking performance during the most unpredictable of road conditions. Zipp’s 303 Firecrest Tubeless Disc-brake rear wheel is designed for the real world… a world of imperfect conditions, road surfaces, and elements where the bottom line is simple. Efficiency = speed. It’s faster, lighter, and more capable over varied terrain—whether the surface is pavement in all its conditions or no pavement at all. Deeply rooted in Zipp’s drive to conquer the Spring Classics, the 303 Firecrest is remade with a purpose-made approach for the demands of modern road bikes. When it comes to going fast on a bicycle, efficiency means reduced: Wind resistance, rolling resistance, rider fatigue, weight. Designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 30mm outside width, a 25mm internal width, and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tyre, boosting aero efficiency on the road. The wide rim stance also features less tyre deflection for reduced rolling resistance. The combination of the wider tyre, increased tyre volume, and lower tyre pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tyre and wheel system absorbs the shaking, not the rider. At the centre of the 303 Firecrest Tubeless Disc brake rear wheel is a versatile and durable hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker response. The 303 Firecrest Tubeless Disc-brake rear wheel is for dedicated cyclists who aspire to the latest in technology. Its competitors… in races, against peers, or simply conquering personal limits. This is about becoming faster and matching your motivation to the most advanced technology. Item Top Features Continued: Driver Body Type: Multiple options available to select Axle Type: TA 12x142 Bearings: Cartridge - Steel Driver Mechanism: 6 Pawls Leaf Spring Weight: 842g (approx) Technologies: - Zipp graphics and cosmetic identity that scream speed - Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile - Lighter weight than its predecessor, making it nimble and fast - Tubeless Made Easy, optimised tyre bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tyre - Ultra-wide 25mm rim profile creates a better tyre interface to be fast on or off the road - 40mm rim depth makes a light and aero wheel in every situation - ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement - Center locking rotor interface. Lockring is included with the wheels - XDR or SRAM/Shimano driver bodies (select option separately) - Campagnolo driver body sold separately