Brand-X CNC Alloy Seatpost Shim Precision machined alloy Seatpost shim. Available in a wide range of sizes to adapt a 26.8mm or 27.2mm seatpost to fit a larger frame. 90mm length provides plenty of support within your frame. Buy Brand-X CNC Alloy Seatpost Shims from Chain Reaction Cycles, the world's largest online bicycle store.
Convert 31.6 seat tubes to allow a 30.9 or 27.2 seat post. Alternatively convert a 30.9 seat tube to take a 27.2 seat post. The 90mm length provides plenty of support within your frame
Shimano Direct Mount thick thin chainring for maximum chain retention.Fits M7100 M8100 M9100 cranksets.Tried and tested in MTB heaven the Peak District.Keeps your chain on in the roughest of conditions.
Campagnolo Bora One Cult 35 Disc Brake Tubular WheelsetFeaturing two high-quality full carbon fibre rims, this tubular wheelset offers an excellent balance of stiffness, strength and low weight performance for road cycling. Coming equipped with a 35mm profile, Campagnolo has also ensured that you can benefit from guaranteed maximum lightness and aerodynamics as you put the power down. Engineered for best results when riding uphill and on the flat, its lightweight CULT bearings offer up to nine times the smoothness of standard solutions. With its aerodynamic profile spokes providing maximum air penetration and its 6-bolt disc brake compatibility delivering powerful and consistent braking operation, this is a perfect choice for a wide range of riders.The Bora One 35 Disc brake is the perfect answer for cyclists searching for deep profiles capable of offering significant aerodynamic advantages while remaining lightweight and reactive for the steepest climbs. Its extremely sophisticated carbon fibre 24.2mm rim offers a rim and tyre interface optimised for the use of both 25 and 28mm tyres, by creating a more aerodynamic complete unit and a more efficient and sure-footed structure.Carbon Fibre Wheelset with CULT BearingsCULT Bearings (Ceramic Ultimate Level Technology) is a combination of the highest quality ceramic ball bearings and stainless-steel races available on the market, to reduce friction to the very minimum yet maintain a consistently high level of performance for long periods of time.The Mega-G3 Spoke pattern is a type of spoke assembly that improves energy transfer between the hub, which reduces stress on the right-hand side which in turn increases the rigidity of the wheel. This is achieved by having twice as many spokes as the left-hand side.6-Bolt Disc Brake CompatibilityThe Bora One 35 Disc represents the same quality, performance and reliability that made its rim-brake predecessor such an iconic wheel. While it incorporates any technologies used in the rim brake version, this wheelset has been specifically designed for the unique demands that come with disc brake construction. The wheel has been engineered to optimise the distribution of forces caused by disc brakes.The Bora One 35 Disc Brake Wheel is entirely hand-built by a specialised Campagnolo technician and is checked in every tiny detail with electronic tools. This ensures that every wheel conforms to the high standards that Campagnolo pride itself and will have unbeatable reliability.Features: Rim Material: Carbon Use: Road Axle Size: Front: 12x100mm; Rear: 12x142mm Rim Type: Tubular Rim Section (Height/Width): 24.2mm Profile Height: 35mm Tubeless Ready: No Spoke Type: Bladed aerodynamic Stainless Steel (spare spokes included) Spoke Nipples: Aluminium Spoke Count: Front: 24; Rear: 21 (G3) Hub Material: Aluminium Freehub: Shimano 11x or 9/10x with spacers Brake Type: 6-bolt disc brake Single or Pair: PairTechnologies: Full Carbon high profile 35mm rim, tubular only. RDB (Rim Dynamic Balance) exclusive technology engineered into the rims, assures perfect balance even at high speeds. Advanced resin and Carbon Fibre technology, for superior finish, durability and protection from UV rays. Aluminium hub with oversized flange, cup and cone CULT bearings and aluminium axle. Aerodynamic spokes with black anodised self-locking nipples eliminate spoke rotation. Modified versions of the famous Mega G3 Spoke pattern on both the front and rear wheel, for equal spoke tension, stiffness and increased braking torque resistance. Adjusting lockring with micro-setting, for precision hub adjustment. Aluminium hub shell for improved torque transfer across the hub during braking. Freehub: Shimano 11x or 9/10x with spacers. Bolt-Thru Axles.Manufacturer's Part Number: CPW509AD Black 700c ShimanoBuy Campagnolo Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Bora One Cult 50 Disc Brake Tubular WheelsetThis tubular wheelset features two full carbon fibre rims for unequalled performance and reliability as you clock up the miles on your road bike. Boasting a 50mm high rim profile combined with Rim Dynamic Balance (RDB) exclusive technology, this model delivers perfect balance even at high speeds. Another highlight is its CULT bearings that are nine times better performing than a standard solution, guaranteeing long-lasting smoothness on every mile. Campagnolo has also kitted out this version with 6-bolt disc brake compatibility, so you will enjoy powerful and consistent braking performance, wherever your ride takes you. Coming complete with aerodynamic spokes with anodised self-locking nipples that eliminate spoke rotation, this wheelset is a perfect choice of upgrade for smoother, lighter and more reliable rolling performance for your road bike.Carbon Fibre Wheelset with CULT BearingsThe Bora One 50 Disc brake is the perfect answer for cyclists searching for deep profiles capable of offering significant aerodynamic advantages while remaining lightweight and reactive for the steepest climbs. Its extremely sophisticated carbon fibre 24.2mm rim offers a rim and tyre interface optimised for the use of both 25 and 28mm tyres, by creating a more aerodynamic complete unit and a more efficient and sure-footed structure.CULT Bearings (Ceramic Ultimate Level Technology) is a combination of the highest quality ceramic ball bearings and stainless-steel races available on the market, to reduce friction to the very minimum yet maintain a consistently high level of performance for long periods of time.The Mega-G3 Spoke pattern is a type of spoke assembly that improves energy transfer between the hub, which reduces stress on the right-hand side which in turn increases the rigidity of the wheel. This is achieved by having twice as many spokes as the left-hand side.6-Bolt Disc Brake CompatibilityThe Bora One 50 Disc represents the same quality, performance and reliability that made its rim-brake predecessor such an iconic wheel. While it incorporates any technologies used in the rim brake version, this wheelset has been specifically designed for the unique demands that come with disc brake construction. The wheel has been engineered to optimise the distribution of forces caused by disc brakes.The Bora One 50 Disc Brake Wheel is entirely hand built by a specialised Campagnolo technician and is checked in every tiny detail with electronic tools. This ensures that every wheel conforms to the high standards that Campagnolo pride itself and will have unbeatable reliability.Features: Rim Material: Carbon Use: Road Axle Size: Front: 12x100mm; Rear: 12x142mm Rim Type: Tubular Rim Section (Height/Width): 24.2mm Profile Height: 50mm Tubeless Ready: No Spoke Type: Bladed aerodynamic Stainless Steel (spare spokes included) Spoke Nipples: Aluminium Spoke Count: Front: 24; Rear: 21 (G3) Hub Material: Aluminium Freehub: Shimano 11x or 9/10x (spacers available separately) Brake Type: 6-bolt disc brake Single or Pair: PairTechnologies: Full Carbon high profile 50mm rim, tubular only. RDB (Rim Dynamic Balance) exclusive technology engineered into the rims, assures perfect balance even at high speeds. Advanced resin and Carbon Fibre technology, for superior finish, durability and protection from UV rays. Aluminium hub with oversized flange, cup and cone CULT bearings and aluminium axle. Aerodynamic spokes with black anodised self-locking nipples eliminate spoke rotation. Modified versions of the famous Mega G3 Spoke pattern on both the front and rear wheel, for equal spoke tension, stiffness and increased braking torque resistance. Adjusting lockring with micro-setting, for precision hub adjustment. Aluminium hub shell for improved torque transfer across the hub during braking. Freehub: Shimano 11x or 9/10x (spacers available separately). Bolt-Thru Axles.Manufacturer's Part Number: CPW540ED Black 700c ShimanoBuy Campagnolo Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Bora Ultra 35 Clincher Wheelset Bora Ultra wheels are the choice of pros as they are the perfect wheel for competition. They offer you the performance characteristics that all racing cyclists are looking for - maximum aerodynamics, extreme lightness, lightning quick reactivity and incredible smoothness.Improved Braking in All ConditionsFor the Bora Ultra 35 Clincher wheelset, Campagnolo engineers developed an all-new construction, which has created a braking performance that far outperforms anything found on current carbon rims. The Campy Tech Lab’s developments focused on providing the rider with the same braking performance when riding in the wet as when riding in the dry. The result of these developments is Campagnolo’s most advanced braking surface technology ever. They call it AC3 (All Conditions Carbon Control).Increased Rim WidthCampagnolo has increased the rim width from 20.5mm to 24.2mm - this has not only improved the aerodynamics but allowed the wheel to accommodate wider tyres. Wider tyres increase control, improve grip and make for a more comfortable ride. A wider rim also increases structural integrity without any weight increase to the wheelset.Reduced WeightThe weight of the wheelset is also further reduced, thanks to the front hub having a smaller profile. Even though Campagnolo’s engineers managed to reduce the weight and size of the hub, they were able to save the same high-performance characteristics that the Bora Ultra wheels are renowned for.Features: Full Carbon high profile 35mm rim, in clincher and tubular versions. Includes brake pads specifically for carbon wheels AC3 treatment on the brake surface, improving braking in all conditions RDB (Rim Dynamic Balance) exclusive technology moulded inside the rims, assures perfect balancing of the rims even at high speeds Ultra-lightweight decals eliminate the need for heavy adhesives and painting, reducing the overall weight by nearly 15g Carbon hub with oversize flange with cup and cone CULT bearings, aluminium axle Aerodynamic spokes with exclusive Mega-G3 spoke pattern and anti-rotation system Quick release with eccentric-closure system Weight: 1360g Technologies: AC3: Under dry conditions the new technology increases braking performance 3% over the previous Bora while increasing the gap with its closest competitor by over 6%. However, when the conditions are insidious and rain has the competition worried, AC3 allows the Bora to excel. While the previous edition of the Bora offered results far beyond those found on competitors' wheels, the AC3 technology increases braking performance an astounding 43% over past Campagnolo models. The powerful braking of AC3 represents a nearly 55% performance gap over that of its closest competitor making for a rather significant advantage when the heat of the race is on. Buy Campagnolo Wheelsets from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Bora Ultra 35 meets the requirements of champions using Campagnolo, accompanying them on all their successes, from the Tour 2013 onwards. The clincher and tubular versions of the 35mm wheel, maintain the versatility that brings results on any terrain and in any weather, also adding the advantages of the new generation. The secret of this legendary wheel lies in the details and the innumerable victories are its best testimony. The Bora Ultra wheel is entirely hand-assembled by a specialised Campagnolo technician and is checked in every tiny detail with electronic instrumentation. This ensures maximum performance and reliability for all Campagnolo wheels. Campagnolo engineering staff have developed a new construction that has created braking performance above and beyond anything found on carbon rims to date. The Campy Tech Lab's developments focused on being able to give the rider the same braking performance in wet conditions as in dry conditions. The result is a new braking surface technology called AC3 (all Conditions Carbon Control). Cult Bearings (Ceramic Ultimate Level Technology) is a combination of the highest quality ceramic ball bearings and stainless steel races available on the market, to reduce friction to the very minimum yet maintain a consistently high level of performance for long periods of time. The Mega-G3 Spoke pattern is a type of spoke assembly that improves energy transfer between the hub, which reduces stress on the right-hand side which in turn increases the rigidity of the wheel. This is achieved by having twice as many spokes as the left-hand side. Increasing the rim width from 20.5mm to 24.2mm allowed the Campagnolo engineers to not only improve the aerodynamics but also to allow the wheel to accommodate wider tyres. Using wider tyres increases control, as the contact area between tyre and asphalt is increased, improving grip and creating a more comfortable ride. The wider rim profile increases structural integrity, without increasing the weight of the wheelset. Features: Full Carbon medium profile 35mm rim, in clincher and tubular versions. Includes brake pads specifically for carbon wheels AC3 treatment on the brake surface, improving braking in all conditions RDB (Rim Dynamic Balance) exclusive technology engineered into the rims, assures perfect balance even at high speeds Ultra lightweight decals eliminate the need for heavy adhesives and painting, reducing the overall weight by nearly 15g Carbon hub with oversized flange, cup and cone CULT bearings and aluminium axle Aerodynamic spokes with exclusive Mega-G3 spoke pattern with anti-rotation system Quick release with Eccentric-closure system Freehub: CA 9/10/11/12x, SH 11x or 9/10x with spacers Weight: 1360g for Clincher, (CA) for Campagnolo, (SH) for Shimano Assembly: The Bora Ultra 35 Wheel is entirely hand built by a specialised Campagnolo technician and is checked in every tiny detail with electronic tools. This ensures that every wheel conforms to the high standards that Campagnolo pride themselves and will have unbeatable reliability. Spokes: Spoke Count: 18 Front and 21 (G3) Rear RDB - Rim Dynamic Balance Bladed, aerodynamic stainless steel spokes Ultralinear / DRSC geometry Aluminium nipples Rims: Profile Height: 35mm Rim Section (Height/Width): 35mm/24.2mm Material: Carbon Hubs: Carbon Hub Cult Bearings Width: 100mm Front / 130mm Rear Oversize Flange Cup-and-cone bearings Freehub: CA 9/10/11/12x, SH 11x or 9/10x with spacers In The Box: Carbon Brake Pad set (40% better braking performance in wet conditions and 20% in the dry) New, re-designed quick-release skewers Valve Extender User Manual Warranty Booklet Campagnolo Wheel Identification Card
The Bora Ultra 35 meets the requirements of champions using Campagnolo, accompanying them on all their successes, from the Tour 2013 onwards. The clincher and tubular versions of the 35mm wheel, maintain the versatility that brings results on any terrain and in any weather, also adding the advantages of the new generation. The secret of this legendary wheel lies in the details and the innumerable victories are its best testimony. The Bora Ultra wheel is entirely hand-assembled by a specialised Campagnolo technician and is checked in every tiny detail with electronic instrumentation. This ensures maximum performance and reliability for all Campagnolo wheels. Campagnolo engineering staff have developed a new construction that has created braking performance above and beyond anything found on carbon rims to date. The Campy Tech Lab's developments focused on being able to give the rider the same braking performance in wet conditions as in dry conditions. The result is a new braking surface technology called AC3 (all Conditions Carbon Control). Cult Bearings (Ceramic Ultimate Level Technology) is a combination of the highest quality ceramic ball bearings and stainless steel races available on the market, to reduce friction to the very minimum yet maintain a consistently high level of performance for long periods of time. The Mega-G3 Spoke pattern is a type of spoke assembly that improves energy transfer between the hub, which reduces stress on the right-hand side which in turn increases the rigidity of the wheel. This is achieved by having twice as many spokes as the left-hand side. Increasing the rim width from 20.5mm to 24.2mm allowed the Campagnolo engineers to not only improve the aerodynamics but also to allow the wheel to accommodate wider tyres. Using wider tyres increases control, as the contact area between tyre and asphalt is increased, improving grip and creating a more comfortable ride. The wider rim profile increases structural integrity, without increasing the weight of the wheelset. Features: Full Carbon medium profile 35mm rim, in clincher and tubular versions. Includes brake pads specifically for carbon wheels AC3 treatment on the brake surface, improving braking in all conditions RDB (Rim Dynamic Balance) exclusive technology engineered into the rims, assures perfect balance even at high speeds Ultra lightweight decals eliminate the need for heavy adhesives and painting, reducing the overall weight by nearly 15g Carbon hub with oversized flange, cup and cone CULT bearings and aluminium axle Aerodynamic spokes with exclusive Mega-G3 spoke pattern with anti-rotation system Quick release with Eccentric-closure system Freehub: CA 9/10/11/12x, SH 11x or 9/10x with spacers Weight: 1360g for Clincher, (CA) for Campagnolo, (SH) for Shimano Assembly: The Bora Ultra 35 Wheel is entirely hand built by a specialised Campagnolo technician and is checked in every tiny detail with electronic tools. This ensures that every wheel conforms to the high standards that Campagnolo pride themselves and will have unbeatable reliability. Spokes: Spoke Count: 18 Front and 21 (G3) Rear RDB - Rim Dynamic Balance Bladed, aerodynamic stainless steel spokes Ultralinear / DRSC geometry Aluminium nipples Rims: Profile Height: 35mm Rim Section (Height/Width): 35mm/24.2mm Material: Carbon Hubs: Carbon Hub Cult Bearings Width: 100mm Front / 130mm Rear Oversize Flange Cup-and-cone bearings Freehub: CA 9/10/11/12x, SH 11x or 9/10x with spacers In The Box: Carbon Brake Pad set (40% better braking performance in wet conditions and 20% in the dry) New, re-designed quick-release skewers Valve Extender User Manual Warranty Booklet Campagnolo Wheel Identification Card
In answer to great request from Nairo Quintana and the other champions using Campagnolo, the Bora Ultra 35 is the best wheel out there in terms of performance uphill and on mixed routes. Its 35 mm profile makes it an extremely light carbon wheel that however guarantees remarkable aerodynamic benefits. Campagnolo offers the Bora Ultra 35 in both clincher and tubular versions, extending the versatility of what is described as the best carbon wheel on the market also to cyclists who prefer the easy management of clinchers. But this is not all as innovative AC3 (All Conditions Carbon Control) Technology means maximum safety when braking in any condition, guaranteeing shorter stopping distances and excellent modularity of braking power. Thanks to its wide, aerodynamic profile, differentiated hub diameter and CULT bearings, all cyclists can now enjoy the same performance Campagnolo guarantees its Pro-Tour champions. Features: No compromise Its 35 mm carbon profile guarantees maximum lightness and aerodynamics Its carbon hubs reduce weight for good lateral stiffness Designed for best results uphill and on the flat Lightweight and smooth CULT bearings guarantee up to nine times the smoothness of standard solutions Its carbon rim and hubs ensure good stiffness and extremely low weight Its aerodynamic profile spokes ensure maximum air penetration Easy maintenance Also available in a clincher version, in Bright Label and Dark Label colourways Its CULT bearings are designed to zero oxidation and preserve performance over time Its exclusive G3 spokes ensure better balancing of the traction force on the wheel, drastically reducing all its stress Specifications: Spokes: Number of spokes: 18 front and 21 (G3) rear RDB – Rim Dynamic Balance Bladed aerodynamic spokes Stainless steel spokes Ultralinear/DRSC geometry Aluminium nipples Compatibility: Campagnolo FH Body 9/10/11/12 FH Body HG 9/10/11 Hub: Carbon hub USB bearings Hub edge: 100mm (front), 130mm (rear) Oversize flange Cup-and-cone bearing system Rim: Profile height: 35 mm Rim section (height/width): 35mm/24,2mm Rim material: Carbon Graphic colours: Bright Label and Dark Label Tyres: Tubular Assembly The Bora Bora Ultra 35 wheel is entirely hand-assembled by a specialised Campagnolo® technician and is checked in every tiny detail with electronic instrumentation. This ensures maximum performance and reliability for all Campagnolo® wheels. Comes With: Special brake pad kit for carbon wheels (red compound): 40% better braking performance in wet conditions and 20% in dry New Quick Release wheels with totally redesigned aerodynamic profile, lighter and with shiny finish Valve extender User manual
Campagnolo Bora Ultra 50 Clincher WheelsetCampagnolo Bora Ultra wheels are the choice of pros as they are the perfect wheel for competition. They offer you the performance characteristics that all racing cyclists are looking for - maximum aerodynamics, extreme lightness, lightning quick reactivity and incredible smoothness.Improved Braking in All ConditionsFor the Bora Ultra 50 Clincher wheelset, Campagnolo engineers developed an all-new construction, which has created a braking performance that far outperforms anything found on current carbon rims. The Campy Tech Lab’s developments focused on providing the rider with the same braking performance when riding in the wet as when riding in the dry. The result of these developments is Campagnolo’s most advanced braking surface technology ever. They call it AC3 (All Conditions Carbon Control).Increased Rim WidthCampagnolo has increased the rim width from 20.5mm to 24.2mm - this has not only improved the aerodynamics but allowed the wheel to accommodate wider tyres. Wider tyres increase control, improve grip and make for a more comfortable ride. A wider rim also increases structural integrity without any weight increase to the wheelset.Reduced WeightThe weight of the wheelset is also further reduced, thanks to the front hub having a smaller profile. Even though Campagnolo’s engineers managed to reduce the weight and size of the hub, they were able to save the same high-performance characteristics that the Bora Ultra wheels are renowned for.Features: Full Carbon high profile 50mm clincher rim Includes brake pads specifically for carbon wheels AC3 treatment on the brake surface, improving braking in all conditions RDB (Rim Dynamic Balance) exclusive technology moulded inside the rims, assures perfect balancing of the rims even at high speeds Ultra-lightweight decals eliminate the need for heavy adhesives and painting, reducing the overall weight by nearly 15g Carbon hub with oversize flange with cup and cone CULT bearings, Aluminium axle Aerodynamic spokes with exclusive Mega-G3 spoke pattern and anti-rotation system Quick release with eccentric-closure system Weight: 1435g Technologies: AC3: Under dry conditions the new technology increases braking performance 3% over the previous Bora while increasing the gap with its closest competitor by over 6%. However, when the conditions are insidious and rain has the competition worried, AC3 allows the Bora to excel. While the previous edition of the Bora offered results far beyond those found on competitors' wheels, the AC3 technology increases braking performance an astounding 43% over past Campagnolo models. The powerful braking of AC3 represents a nearly 55% performance gap over that of its closest competitor making for a rather significant advantage when the heat of the race is on. Buy Campagnolo Wheelsets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Bora Ultra 50 Clincher WheelsetCampagnolo Bora Ultra wheels are the choice of pros as they are the perfect wheel for competition. They offer you the performance characteristics that all racing cyclists are looking for - maximum aerodynamics, extreme lightness, lightning quick reactivity and incredible smoothness.Improved Braking in All ConditionsFor the Bora Ultra 50 Clincher wheelset, Campagnolo engineers developed an all-new construction, which has created a braking performance that far outperforms anything found on current carbon rims. The Campy Tech Lab’s developments focused on providing the rider with the same braking performance when riding in the wet as when riding in the dry. The result of these developments is Campagnolo’s most advanced braking surface technology ever. They call it AC3 (All Conditions Carbon Control).Increased Rim WidthCampagnolo has increased the rim width from 20.5mm to 24.2mm - this has not only improved the aerodynamics but allowed the wheel to accommodate wider tyres. Wider tyres increase control, improve grip and make for a more comfortable ride. A wider rim also increases structural integrity without any weight increase to the wheelset.Reduced WeightThe weight of the wheelset is also further reduced, thanks to the front hub having a smaller profile. Even though Campagnolo’s engineers managed to reduce the weight and size of the hub, they were able to save the same high-performance characteristics that the Bora Ultra wheels are renowned for.Features: Full Carbon high profile 50mm clincher rim Includes brake pads specifically for carbon wheels AC3 treatment on the brake surface, improving braking in all conditions RDB (Rim Dynamic Balance) exclusive technology moulded inside the rims, assures perfect balancing of the rims even at high speeds Ultra-lightweight decals eliminate the need for heavy adhesives and painting, reducing the overall weight by nearly 15g Carbon hub with oversize flange with cup and cone CULT bearings, Aluminium axle Aerodynamic spokes with exclusive Mega-G3 spoke pattern and anti-rotation system Quick release with eccentric-closure system Weight: 1435g Technologies: AC3: Under dry conditions the new technology increases braking performance 3% over the previous Bora while increasing the gap with its closest competitor by over 6%. However, when the conditions are insidious and rain has the competition worried, AC3 allows the Bora to excel. While the previous edition of the Bora offered results far beyond those found on competitors' wheels, the AC3 technology increases braking performance an astounding 43% over past Campagnolo models. The powerful braking of AC3 represents a nearly 55% performance gap over that of its closest competitor making for a rather significant advantage when the heat of the race is on. Buy Campagnolo Wheelsets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Being a leading example of advanced Italian road bike technology – the Campagnolo Bora Ultra 50's are the wheelset of choice for World Champions and Grand Tour winners when faced with rolling roads and flat terrain. In this clincher-compatible iteration, they also offer an exceptional level of serviceability too. As a result of the 50mm deep rim, this wheelset maximises aerodynamic gain and rider efficiency on flat roads. However, despite the enormous aerodynamic gains on offer, the Campagnolo Bora Ultra's are somewhat uncharacteristically lightweight compared with other aero wheelsets. Weighing just 1435 grams per pair, these wheels help you dance up climbs with almost as much ease as they help you motor over the flat. Due to the new slightly larger, 24.2mm outer rim width, this wheelset also accommodates much wider tyres than the previous model - drastically improving rider comfort as well as control and grip out on the road. While carbon rims have historically had a reputation for poor braking, with the development of AC3 (All Conditions Carbon Control) technology, Campagnolo has broken the mould. By applying this technology to the braking track, the Campagnolo Bora Ultra's offer a 40% improvement in braking performance in the wet, and 20% better braking performance in drier conditions. At the centre of these wheels are a set of oversized, high flanged carbon-fibre hubs. These are filled with Campagnolo's proprietary CULT ceramic bearings, designed to help the wheels spin smoother, for longer. These hubs are laced and balanced to the carbon rim, by hand using Campagnolo's distinctive G3 spoke pattern via 18 bladed stainless-steel spokes in the front, and 21 in the rear. These design and manufacturing techniques create an aero wheelset that is incredibly torsionally stiff and efficient, ensuring maximum speed and lasting race-winning performance. Carbon fibre rim construction 50mm rim depth 24.2mm external rim width to accommodate wider tyres AC3 rim construction for improved all-weather braking performance Weight: 1435 grams Clincher tyre compatible Rim brake compatible Handbuilt in Italy High flange carbon hub set, (100mm front) (130mm rear). Cup-and-cone bearing system. CULT ceramic bearings Bladed aerodynamic stainless-steel spokes. 18 front, 21 rear. Aluminium nipples 9/10/11 speed compatible freehub Includes: special brake-pad kit for carbon wheels, quick releases, valve extenders and a user manual