SRAM Force eTap AXS Shift-Brake LeverEngineered for road cycling performance, this brake lever is specifically designed to create a wireless and seamless connection with your ride. They feature SRAM's renowned eTap technology, which allows you to use one lever to shift up and the other lever to shift down. Another highlight is this model's AXS technology, which allows riders to fine-tune and adjust the levers behaviour and controls for a more rider-tuned experience. One final benefit is the shifter levers are mounted on the inside of the brake levers, so you can enjoy its clean, aerodynamic appearance. Combining the tradition of mechanical rim brakes and the precision and efficiency of modern electronic shifting, SRAM Force eTap AXS shift-brake levers are fully wireless and fully personalisable. Classic is now new.Features: Brake Lever Material: Carbon Shift Lever Material: Plastic Use: Road Speed: 2x12 speed Shifter Type: eTap Shifting System: Wireless Compatible Derailleur/Hub (SL) Front Derailleur: 2 speed Yaw; Rear Derailleur: 12 speed Brake Type: For use with mechanical rim brakes Reach Adjust: Yes AXS Enabled: Yes Brake Cable Length: Front: 1700mm; Rear: 1100mm Single or Pair: Single Manufacturer's Part Numbers: Front Right Hand: 00.7018.387.001; Rear Left Hand, 00.7018.387.000Technologies: eTap: SRAM's eTap is a simple, unambiguous and intuitive shifting logic. With the shift lever on the right-hand side you move the rear derailleur inwards to a larger sprocket, with the shift lever on the right-hand side you move the derailleur outwards to a smaller sprocket. With the shift lever pressed down, you can directly shift several gears. Pressing both shift levers at the same time causes a derailleur movement in 2-speed shifting systems. AXS: AXS is the new electronic integration platform by SRAM, which combines electronic bicycle components and software. The SRAM AXS app allows you to view battery status, change component behaviour, adjust controls, receive maintenance reminders and update firmware. Reach Adjust: The fit and ergonomics of the brake lever is a very personal matter. Riders have individual position preferences as well as unique hand sizes and finger lengths. With the reach adjustment, the lever can be easily adjusted - for maximum control with just one finger. Simple and intuitive eTap shift logic One port per side for Blips Large SRAM eTap shift paddles provide positive controls for rider inputBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM RED eTap AXS Gear-Brake LeversWhether you're clocking up the miles on your road bike or enjoying day-long adventures exploring the countryside on your gravel bike, this shift-brake lever pair provides powerful and consistent performance wherever your next adventure leads you. Featuring many of SRAM's proven technologies such as AXS connectivity for easy personalisation, simple and intuitive eTap shift logic and a customisable fit using Reach Adjust, this model is an ideal upgrade for road or gravel riders with mechanical rim brakes.Customisable with Wireless Electronic Shifting TechnologySRAM has equipped this pair with its renowned AXS wireless technology, so riders will enjoy greater personalisation and control over their performance. By using the SRAM AXS app, riders can see their battery status, change component behaviour, personalise controls, get maintenance reminders, and easily update their firmware.Adjustable Lever ReachDesigned for versatility, this model is kitted out with Reach Adjust technology which makes that you can fine-tune the gap between the lever blade and your handlebar for a more customised fit to the palm of your hand. This makes it a great option for all hand sizes including riders with smaller hands, as the levers can be tweaked to perfectly fit your hand size, riding style as well as the terrain conditions. With easy personalisation, powerful braking and consistent shifting operation, the SRAM RED eTap AXS Shift-Brake Lever Pair is well-equipped for the demands of modern road and gravel riding.Features: Brake Lever Material: Carbon Shift Lever Material: Plastic Use: Road, Gravel Shifter Type: eTap Brake Cable Length: 1100mm, 1750mm Brake Cable Housing Length: 1900mm Compatible Derailleur/Hub: Front Derailleur: 2 speed Yaw; Rear Derailleur: 12 speed Customisable fit with Reach Adjust Two ports for Blips on each lever Large SRAM eTap paddles provide positive controls for rider input For use with mechanical rim brakes Single or Pair: PairTechnologies: AXS: AXS is SRAM's bike component integration system that connects electronic bicycle components and software. The SRAM AXS app allows riders to see battery status, change component behavior, personalize controls, get maintenance reminders, and update firmware. X-Range: Road bikes are faster and more capable than ever before, and riders are expanding what's possible with drop bar bikes. X-Range is gearing for today's road riding. We completely reimagined road gearing for wider range, more useful and smoother gear progression, as well as smarter shift settings—enabled by AXS. With X-Range, you're always in the right gear. Reach Adjust: Brake lever fit and feel is a personal thing. Riders have individual positioning preferences, as well as unique hand sizes and finger lengths. Reach Adjust makes it easy to adjust your lever for maximum one-finger control for everyone. eTap: All of the underlying tech in the SRAM RED eTap groupset, such as wireless shifting, advanced battery power management, and mechatronics technologies, are meant to serve one ultimate purpose: to facilitate the most intuitive and consistent shifting available. This shift logic is called eTap. Right lever makes it harder, left lever makes it easier, both levers shift the front derailleur. Simple, unmistakable, and intuitive.Manufacturer's Part Number: EB8394000PAIR Black 130mm PairBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Rival 22 Road Brake CalipersThe new SRAM Rival 22 delivers immense performance across a broad variety of bikes and disciplines. Paved or not. Cyclocross or triathlon. Road racing or unchartered journeys. Rival 22 provides the ergonomics, efficiency and technology for finely tuned cyclists to meet each challenge and expand their limits.Dedicated cyclists' demands are different - not less than - the pro's. Their demands change and evolve with their riding and performance, whether they're race ready or adventure ready. So why settle for a group that's simply ratcheted-down to 75 percent of what the pros ride? Rival 22 delivers 100 percent of what cyclists demand.Features:Dual pivot design increases braking power and enhances progressive feelOptimized for Zipp Firecrest compatibility with clearance for tires up to 28cForged aluminum arms with SwissStop pad compoundWeight: 300g a pairSpecifications:Weight: 300g (set)Caliper Design: Forged Aluminum Arms/ Stainless Steel HardwareFinish: Grey & Black AnodizedPad: SwissStop Pad CompoundTechnology Highlights: Dual Pivot Design with Convex Washers/ Optimized Firecrest compatibilityLever Compatibility: SRAM Road Shift-Brake leversBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Rival 22 HydroR Disc Brake The new SRAM Rival 22 groupset delivers immense performance across a broad variety of bikes and disciplines. Paved or not.Cyclocross or triathlon. Road racing or unchartered journeys. Rival 22 provides the ergonomics, efficiency and technology for finely tuned cyclists to meet each challenge and expand their limits. Dedicated cyclists' demands are different - not less than - the pro's. Their demands change and evolve with their riding and performance, whether they're race ready or adventure ready. So why settle for a group that's simply ratcheted-down to 75 percent of what the pros ride? Rival 22 delivers 100 percent of what cyclists demand. Features: Optimized stopping power and modulation for road or cyclocross 18mm front/18mm rear pistons Road specific caliper and piston ratio Fully sealed system = no contamination Centerline rotors sold separately 160mm for pavement or 140mm option for off-road Forged aluminum disc caliper with stainless steel backed pads and titanium hardware Specifications: Rotor: Centerline (140 & 160mm) Pad: Stainless steel backed pads Fluid: DOT 5.1 Connectamajig: No included Compatibility: SRAM RED 22 Hydraulic Shift-Brake levers Technology Highlights: HydroR Material: SRAM RED 22, Force 22 & Rival 22 Hydraulic Shift-Brake levers Weight: 493g per wheel (Lever, Caliper, Hose and 160mm Centerline rotor) Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Rival 22 HydroR Disc Brake The new SRAM Rival 22 groupset delivers immense performance across a broad variety of bikes and disciplines. Paved or not.Cyclocross or triathlon. Road racing or unchartered journeys. Rival 22 provides the ergonomics, efficiency and technology for finely tuned cyclists to meet each challenge and expand their limits. Dedicated cyclists' demands are different - not less than - the pro's. Their demands change and evolve with their riding and performance, whether they're race ready or adventure ready. So why settle for a group that's simply ratcheted-down to 75 percent of what the pros ride? Rival 22 delivers 100 percent of what cyclists demand. Features: Optimized stopping power and modulation for road or cyclocross 18mm front/18mm rear pistons Road specific caliper and piston ratio Fully sealed system = no contamination Centerline rotors sold separately 160mm for pavement or 140mm option for off-road Forged aluminum disc caliper with stainless steel backed pads and titanium hardware Specifications: Rotor: Centerline (140 & 160mm) Pad: Stainless steel backed pads Fluid: DOT 5.1 Connectamajig: No included Compatibility: SRAM RED 22 Hydraulic Shift-Brake levers Technology Highlights: HydroR Material: SRAM RED 22, Force 22 & Rival 22 Hydraulic Shift-Brake levers Weight: 493g per wheel (Lever, Caliper, Hose and 160mm Centerline rotor) Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Force 22/CX1 HydroR Disc Brake Optimized stopping power and modulation for cyclocross. Specific caliper and piston ratio. Fully sealed system = no contamination. Centerline rotors sold separately. Forged aluminum disc caliper with stainless steel backed pads and stainless hardware. The Connectamajig is the coupling hose that makes initial set-up of SRAM road hydraulic brake systems easy, fast and convenient for the factory, craft builder, or dealer. The intimidation of hydraulics is gone with a push and a twist, its just that easy. Connectamajig is available to bike manufacturers and works for SRAM’s RED 22 and S-700 hydro systems. Specifications: Rotor: Centerline (140-160mm) Piston: 18mm Pad: Stainless steel backed pads Fluid: DOT 5.1 Technology Highlights: HydroR/ Connectamajig Material: Forged Aluminum Disc Caliper/ Stainless Hardware Compatibility: SRAM RED 22, Force 22, Force CX1 & Rival 22 Hydraulic Shift-Brake levers Buy SRAM Brakes from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Level Mountain Bike Disc BrakeThe SRAM Level brake levels the playing field with power and reliability stuffed into a lightweight package. This is a no-nonsense performer, but don't let its understated disposition fool you, Level gives you the art of braking in minimalist form.Features: Lever Material: Stamped Aluminium Caliper Design: 2-piston caliper Caliper Style: Post Mount Finish: Black Pad: Steel-backed organic Fluid: DOT 5.1 Adjustment: Tooled reach adjust Material: Aluminium Pad/Holder: Top loading Intended Use: XC, Trail System: Open system Bend Zone: Yes Ambidextrous: Yes Hardware: Stainless Steel Weight: 430g Technologies:Direct Link: SRAM's DirectLink lever design produces a solid, positive feel the second you squeeze the lever to engage the brake. It offers a no-nonsense solution to give you precise control.DOT 5.1: Heat is an enemy of any brake system, so advancements in heat management mean advancements in your ride. SRAM found that in their systems DOT 5.1 takes almost three times longer to boil than DOT 4, thus allowing flawless, fade-free performance in even more extreme conditions.Expandable Bladder: SRAM's new brake lever design includes a reshaped bladder that helps regulate and reduce air bubbles. The bladder is specifically shaped to evacuate air from the lever and push the fluid exactly where it's needed. The result is improved backpressure relief, which produces dependable braking power and consistency.PiggyBack Reservoir: The brake fluid reservoir on SRAM's latest lever design is optimised for both performance and ease of use. The PiggyBack Reservoir offers a simple, failsafe way to manage brake fluid, and also allows for ambidextrous lever placement.Timing Port Closure: A hydraulic brake's timing port is the connection between the reservoir and the master cylinder bore. When the lever is squeezed, a cup seal passes this area and closes the port, which pressurises the system. SRAM's new timing port closure system features durable seals and an ultra-smooth cylinder bore finish, producing dependable braking power and consistency.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store."
SRAM Level Mountain Bike Disc BrakeThe SRAM Level brake levels the playing field with power and reliability stuffed into a lightweight package. This is a no-nonsense performer, but don't let its understated disposition fool you, Level gives you the art of braking in minimalist form.Features: Lever Material: Stamped Aluminium Caliper Design: 2-piston caliper Caliper Style: Post Mount Finish: Black Pad: Steel-backed organic Fluid: DOT 5.1 Adjustment: Tooled reach adjust Material: Aluminium Pad/Holder: Top loading Intended Use: XC, Trail System: Open system Bend Zone: Yes Ambidextrous: Yes Hardware: Stainless Steel Weight: 430g Technologies:Direct Link: SRAM's DirectLink lever design produces a solid, positive feel the second you squeeze the lever to engage the brake. It offers a no-nonsense solution to give you precise control.DOT 5.1: Heat is an enemy of any brake system, so advancements in heat management mean advancements in your ride. SRAM found that in their systems DOT 5.1 takes almost three times longer to boil than DOT 4, thus allowing flawless, fade-free performance in even more extreme conditions.Expandable Bladder: SRAM's new brake lever design includes a reshaped bladder that helps regulate and reduce air bubbles. The bladder is specifically shaped to evacuate air from the lever and push the fluid exactly where it's needed. The result is improved backpressure relief, which produces dependable braking power and consistency.PiggyBack Reservoir: The brake fluid reservoir on SRAM's latest lever design is optimised for both performance and ease of use. The PiggyBack Reservoir offers a simple, failsafe way to manage brake fluid, and also allows for ambidextrous lever placement.Timing Port Closure: A hydraulic brake's timing port is the connection between the reservoir and the master cylinder bore. When the lever is squeezed, a cup seal passes this area and closes the port, which pressurises the system. SRAM's new timing port closure system features durable seals and an ultra-smooth cylinder bore finish, producing dependable braking power and consistency.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store."
SRAM Level T Disc BrakeTo ensure this budget-friendly Level T brake gives you the power to tame the trails, SRAM enhanced it with the same World Mountain Bike Championship-winning technologies as seen on its higher-spec Ultimate and Level TLM models. This means you can have a hydraulic disc brake that’s ready for the toughest cross country and all-mountain trails but at a more affordable price point.Features:Lever Material: Stamped AluminiumFinish: Gloss BlackHardware Material: Stainless SteelBrake Type: Hydraulic disc brakeCaliper Design: 2-piston caliperCaliper Mount Type: Post MountPad: Steel-backed organicBrake Fluid Type: DOT 5.1Adjustment: Tooled reach adjustPad/Holder: Top loadingIntended Use: XC, TrailSystem: Open systemBend Zone™: YesAmbidextrous Lever: YesSame proven lever technologies as Guide model - piston, seals, reservoir and bladderCompact lever body with DirectLink™ technologySame power as Level Ultimate, Level TLM and Level TLMatchMaker™ compatible to combine with compatible shifters (connecting mounts sold separately)Two-bolt clampSold IndividuallyManufacturer Reference Codes: Front: 00.5018.105.000; Rear: 00.5018.105.001Weight: 410gTechnologies:Direct Link: SRAM's DirectLink lever design produces a solid, positive feel the second you squeeze the lever to engage the brake. It offers a no-nonsense solution to give you precise control.DOT 5.1: Heat is an enemy of any brake system, so advancements in heat management mean advancements in your ride. SRAM found that in their systems DOT 5.1 takes almost three times longer to boil than DOT 4, thus allowing flawless, fade-free performance in even more extreme conditions.Expandable Bladder: SRAM's new brake lever design includes a reshaped bladder that helps regulate and reduce air bubbles. The bladder is specifically shaped to evacuate air from the lever and push the fluid exactly where it's needed. The result is improved backpressure relief, which produces dependable braking power and consistency.MatchMaker and MMX Compatible: Save weight and clutter on the bar with Matchmaker. It holds Avid levers, SRAM® triggers, and various RockShox® controls, all with one tidy, light, clamp--a dream come true for handlebar component footprint conservationists the world over.PiggyBack™ Reservoir: The brake fluid reservoir on SRAM's latest lever design is optimised for both performance and ease of use. The PiggyBack Reservoir offers a simple, failsafe way to manage brake fluid, and also allows for ambidextrous lever placement.Timing Port Closure: A hydraulic brake's timing port is the connection between the reservoir and the master cylinder bore. When the lever is squeezed, a cup seal passes this area and closes the port, which pressurises the system. SRAM's new timing port closure system features durable seals and an ultra-smooth cylinder bore finish, producing dependable braking power and consistency.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Level T Disc BrakeTo ensure this budget-friendly Level T brake gives you the power to tame the trails, SRAM enhanced it with the same World Mountain Bike Championship-winning technologies as seen on its higher-spec Ultimate and Level TLM models. This means you can have a hydraulic disc brake that’s ready for the toughest cross country and all-mountain trails but at a more affordable price point.Features:Lever Material: Stamped AluminiumFinish: Gloss BlackHardware Material: Stainless SteelBrake Type: Hydraulic disc brakeCaliper Design: 2-piston caliperCaliper Mount Type: Post MountPad: Steel-backed organicBrake Fluid Type: DOT 5.1Adjustment: Tooled reach adjustPad/Holder: Top loadingIntended Use: XC, TrailSystem: Open systemBend Zone™: YesAmbidextrous Lever: YesSame proven lever technologies as Guide model - piston, seals, reservoir and bladderCompact lever body with DirectLink™ technologySame power as Level Ultimate, Level TLM and Level TLMatchMaker™ compatible to combine with compatible shifters (connecting mounts sold separately)Two-bolt clampSold IndividuallyManufacturer Reference Codes: Front: 00.5018.105.000; Rear: 00.5018.105.001Weight: 410gTechnologies:Direct Link: SRAM's DirectLink lever design produces a solid, positive feel the second you squeeze the lever to engage the brake. It offers a no-nonsense solution to give you precise control.DOT 5.1: Heat is an enemy of any brake system, so advancements in heat management mean advancements in your ride. SRAM found that in their systems DOT 5.1 takes almost three times longer to boil than DOT 4, thus allowing flawless, fade-free performance in even more extreme conditions.Expandable Bladder: SRAM's new brake lever design includes a reshaped bladder that helps regulate and reduce air bubbles. The bladder is specifically shaped to evacuate air from the lever and push the fluid exactly where it's needed. The result is improved backpressure relief, which produces dependable braking power and consistency.MatchMaker and MMX Compatible: Save weight and clutter on the bar with Matchmaker. It holds Avid levers, SRAM® triggers, and various RockShox® controls, all with one tidy, light, clamp--a dream come true for handlebar component footprint conservationists the world over.PiggyBack™ Reservoir: The brake fluid reservoir on SRAM's latest lever design is optimised for both performance and ease of use. The PiggyBack Reservoir offers a simple, failsafe way to manage brake fluid, and also allows for ambidextrous lever placement.Timing Port Closure: A hydraulic brake's timing port is the connection between the reservoir and the master cylinder bore. When the lever is squeezed, a cup seal passes this area and closes the port, which pressurises the system. SRAM's new timing port closure system features durable seals and an ultra-smooth cylinder bore finish, producing dependable braking power and consistency.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Level TL Disc BrakeEnjoy precise, reliable braking with the TL Disc Brake from SRAM. Designed to tackle challenging cross country (XC) trails, this powerful brake ensures smooth, controlled braking whenever you need it most. Compatible with alloy DirectLink™ levers, Level Ultimate, and Guide series of brakes, for reliability and consistent braking you can count on.Features:Lever Material: Forged AluminiumCaliper Design: 2-piston caliperBrake Mount: Post MountFinish: Gloss BlackPad Material: Steel-backed organicBrake Fluid: DOT 5.1Brake Type: HydraulicAdjustment: Tooled reach adjustMaterial: AluminiumPad/Holder: Top loadingIntended Use: XC, TrailSystem: Open systemBend Zone™: YesAmbidextrous: YesHardware: Stainless SteelSingle or Pair: PairWeight: 370gPart No: DB-LVL-TL-A1Technologies:Direct Link: SRAM's DirectLink lever design produces a solid, positive feel the second you squeeze the lever to engage the brake. It offers a no-nonsense solution to give you precise control.DOT 5.1: Heat is an enemy of any brake system, so advancements in heat management mean advancements in your ride. SRAM found that in their systems DOT 5.1 takes almost three times longer to boil than DOT 4, thus allowing flawless, fade-free performance in even more extreme conditions.Expandable Bladder: SRAM's new brake lever design includes a reshaped bladder that helps regulate and reduce air bubbles. The bladder is specifically shaped to evacuate air from the lever and push the fluid exactly where it's needed. The result is improved backpressure relief, which produces dependable braking power and consistency.MatchMaker and MMX Compatible: Save weight and clutter on the bar with Matchmaker. It holds Avid levers, SRAM® triggers, and various RockShox® controls, all with one tidy, light, clamp--a dream come true for handlebar component footprint conservationists the world over.PiggyBack™ Reservoir: The brake fluid reservoir on SRAM's latest lever design is optimised for both performance and ease of use. The PiggyBack Reservoir offers a simple, failsafe way to manage brake fluid, and also allows for ambidextrous lever placement.Timing Port Closure: A hydraulic brake's timing port is the connection between the reservoir and the master cylinder bore. When the lever is squeezed, a cup seal passes this area and closes the port, which pressurises the system. SRAM's new timing port closure system features durable seals and an ultra-smooth cylinder bore finish, producing dependable braking power and consistency.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Level TLM Disc BrakeIt has a championship-winning pedigree, and is ready to take all of the punishment you want to give it. Level TLM puts proven SRAM braking performance and consistency at your fingertips, in a sleek, lightweight design optimised specifically for cross-country and light trail use.Power and modulation are delivered via the Level TLM's alloy lever blade, DirectLink actuation, DOT 5.1 fluid and SRAM's new two-piston, monoblock caliper. The design provides superior heat management for consistent, fade-free performance all day long, and Bleeding Edge technology makes maintenance incredibly simple, so your brakes feel great all day, every day.Please Note: A handlebar clamp is not included with this item.Please Also Note: These levers are can be used as a left hand or a right hand brake as they have an ambidextrous design and a bleed port on both sides.Features: Lever Material: Forged aluminium Caliper Design: Monoblock 2-piston caliper Caliper Style: Post Mount Finish: Dark Grey Pad: Steel-backed organic Fluid: DOT 5.1 Adjustment: Tooled reach adjust Material: Aluminium Pad/Holder: Top loading Intended Use: XC, Trail System: Open system Bend Zone: Yes Ambidextrous: Yes Hardware: Stainless Steel Please Note: A handlebar clamp is not included with this item Weight: 356gTechnologies: Bleeding Edge: New bleed porting and fluid path make it easier to push fluid through the caliper for quick and easy bleeding, dedicated bleed adapter for the S4 caliper plugs into the bleed port and seals the system to minimise air contamination and fluid loss. Direct Link: SRAM's DirectLink lever design produces a solid, positive feel the second you squeeze the lever to engage the brake. It offers a no-nonsense solution to give you precise control. DOT 5.1: Heat is an enemy of any brake system, so advancements in heat management mean advancements in your ride. SRAM found that in their systems DOT 5.1 takes almost three times longer to boil than DOT 4, thus allowing flawless, fade-free performance in even more extreme conditions. Expandable Bladder: SRAM's new brake lever design includes a reshaped bladder that helps regulate and reduce air bubbles. The bladder is specifically shaped to evacuate air from the lever and push the fluid exactly where it's needed. The result is improved backpressure relief, which produces dependable braking power and consistency. Heat Shield: The stainless steel heat shields break the thermal connection between the pad and caliper body, reducing caliper fluid temperature by about 20C even in the most extreme testing conditions. MatchMaker and MMX Compatible: Save weight and clutter on the bar with Matchmaker. It holds Avid levers, SRAM triggers, and various RockShox controls, all with one tidy, light, clamp--a dream come true for handlebar component footprint conservationists the world over. PiggyBack Reservoir: The brake fluid reservoir on SRAM's latest lever design is optimised for both performance and ease of use. The PiggyBack Reservoir offers a simple, failsafe way to manage brake fluid, and also allows for ambidextrous lever placement. Timing Port Closure: A hydraulic brake's timing port is the connection between the reservoir and the master cylinder bore. When the lever is squeezed, a cup seal passes this area and closes the port, which pressurises the system. SRAM's new timing port closure system features durable seals and an ultra-smooth cylinder bore finish, producing dependable braking power and consistency.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.