CeramicSpeed OSPW R9100/R8000 CoatedThis Shimano R9100/R8000 specific version of CeramicSpeed’s OSPW system features the same construction as the standard model, but it’s been enhanced to make the most of your power output even further and the increased watt outputs start at 2.4 watts. The ceramic bearings in this model have been coated with a special treatment to further reduce friction and increase protection from wear and tear. A thin coating is also applied to the bearing races, to increase corrosion resistance.Shimano Specific Pulley WheelsBecause of the design of the 9100 series derailleurs, the R&D team at CeramicSpeed tested and concluded that the best performing combination of oversized pulleys for the Shimano 9100 series is a 13-tooth upper and 19-tooth lower pulley. The design of this Shimano-specific OSPW System is very strong and stiff to ensure a high durability factor. In-house tests show that the higher the tooth count, the longer the pulley wheel lasts.Optimum PerformanceThis revolutionary OSPW System is developed, produced and assembled by hand in Denmark. Designed to be a plug-and-play fit, it's the result of an in-depth development process and has been finely tuned to provide optimal performance. Created to answer the need for less friction (as much as 60%), increased speed and a more efficient drivetrain, the OSPW System gives back what other drivetrains take: watts.Features: Material: Cage: Carbon Fibre, Polyamide; Bearings: Polyamide, Steel and Ceramic; Castors: Aluminium Bearings: Ceramic type 607 Pulley Teeth: Top: 13T; Bottom: 19T Speed: 11-SpeedCapacity: 32T Compatibility: Shimano Dura-ace 9100/9150 and Ultegra R8000 rear derailleurs onlyUse: Road, Triathlon, RanndoneurWeight: 57gMaintenance:It’s important that you properly lubricate your bearings to ensure optimal performance and maximum longevity. Add oil to the outside of the bearing seal, so that oil can penetrate the bearing. Do this when you lubricate your chain, or if you have washed your bike or have been riding in wet or muddy conditions.Buy CeramicSpeed Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
CeramicSpeed OSPW R9100/R8000 CoatedThis Shimano R9100/R8000 specific version of CeramicSpeed’s OSPW system features the same construction as the standard model, but it’s been enhanced to make the most of your power output even further and the increased watt outputs start at 2.4 watts. The ceramic bearings in this model have been coated with a special treatment to further reduce friction and increase protection from wear and tear. A thin coating is also applied to the bearing races, to increase corrosion resistance.Shimano Specific Pulley WheelsBecause of the design of the 9100 series derailleurs, the R&D team at CeramicSpeed tested and concluded that the best performing combination of oversized pulleys for the Shimano 9100 series is a 13-tooth upper and 19-tooth lower pulley. The design of this Shimano-specific OSPW System is very strong and stiff to ensure a high durability factor. In-house tests show that the higher the tooth count, the longer the pulley wheel lasts.Optimum PerformanceThis revolutionary OSPW System is developed, produced and assembled by hand in Denmark. Designed to be a plug-and-play fit, it's the result of an in-depth development process and has been finely tuned to provide optimal performance. Created to answer the need for less friction (as much as 60%), increased speed and a more efficient drivetrain, the OSPW System gives back what other drivetrains take: watts.Features: Material: Cage: Carbon Fibre, Polyamide; Bearings: Polyamide, Steel and Ceramic; Castors: Aluminium Bearings: Ceramic type 607 Pulley Teeth: Top: 13T; Bottom: 19T Speed: 11-SpeedCapacity: 32T Compatibility: Shimano Dura-ace 9100/9150 and Ultegra R8000 rear derailleurs onlyUse: Road, Triathlon, RanndoneurWeight: 57gMaintenance:It’s important that you properly lubricate your bearings to ensure optimal performance and maximum longevity. Add oil to the outside of the bearing seal, so that oil can penetrate the bearing. Do this when you lubricate your chain, or if you have washed your bike or have been riding in wet or muddy conditions.Buy CeramicSpeed Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
CeramicSpeed OSPW System Shimano 9000-6800 The OSPW System Shimano 9000-6800 from CeramicSpeed offers extended durability and enhanced gear shifting smoothness and accuracy. Ideal for road racing, it features a carbon cage with high-quality aluminium pulley wheels and industry-leading bearings.CeramicSpeed OSPW System Shimano 9000-6800 will add a competitive edge to your riding with smoother gear changes, watts saved and envy to all who see your bike. Developed and designed entirely by CeramicSpeed, the Oversized Pulley Wheel (OSPW) System for Shimano 9000-6800 provides the ultimate optimization of your bicycle's drivetrain. This OSPW System features a set of 17-tooth aluminium Pulley Wheels housed in a specially designed polyamide (PA) and carbon cage. The upper and lower 17-tooth oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings. The Oversized Pulley Wheel (OSPW) System is the product of choice by many of the world's leading cycling teams and triathletes. Compatible with Ultegra 6700/6770/6800/6870 mechanical and Di2 rear derailleurs and Dura-Ace 7900/7970/9000/9070 mechanical and Di2 rear derailleurs. The cage is made from carbon fibre and reinforced PA while the 17-tooth pulley wheels are made from aluminium and mounted with high-quality CeramicSpeed bearings. The revolutionary OSPW System is mounted with CeramicSpeed coated bearings, which means it has undergone a special coating treatment to provide even more protection and lower friction. A very thin protective coating is applied to the bearing races, which further increases the resistance to corrosion or damage from foreign objects. The OSPW has been tested and confirmed to be the world's fastest pulley wheel system, therefore enhancing your performance with free speed, which gives you a more efficient drivetrain. Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men's and Women's Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. MaintenanceIt's important that you properly lubricate your bearings in order to ensure optimal performance and maximum longevity. Add oil to the outside of the bearing seal, so that oil can penetrate the bearing. Do this when you lubricate your chain, or if you have washed your bike or have been riding in wet or muddy conditions. This revolutionary OSPW System is developed, produced and assembled by hand in Denmark. This plug-and-play product is the result of an in-depth development process and has been designed for optimal performance. Created to answer the need for less friction (as much as 60%), increased speed and a more efficient drivetrain. This OSPW System helps you ride any distance comfortably. The optimisation of your drivetrain with the new CeramicSpeed OSPW System delivers access to industry-leading efficiency. The use of high-quality materials means this system will outlast other commonly used pulley wheels on the market. Features: Material: Carbon/PA Cage, Aluminium Pulley Wheels Compatibility: Shimano Dura-Ace 9000 / Ultegra 6800 Drivetrain Speed: 10/11-Speed A complete 17-tooth OSPW System CeramicSpeed bearing oil in 15ml dropper bottle Weight: 57gBuy CeramicSpeed Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Oversized Pulley Wheel System for SRAM Red and Force AXS features a 15-tooth upper and 19-tooth lower pulley wheel setting, for maximum efficiency. The handbuilt OSPW System has two spring tension settings, that allows customised setup based on riding conditions.This OSPW System is also compatible with the 2020 11 speed SRAM Red eTap derailleur featuring a clutch.In the box:Complete OSPW System for SRAM Red/Force AXS.,CeramicSpeed Pulley Oil, 15 ml. dropper bottle.,Custom tool for removal of stock cage and securing of OSPW System..Technical Data:Pulley Wheels: CeramicSpeed 15-tooth upper and 19-tooth lower,Pulley Wheel Material: Aluminium,Cage Marterial: Carbon reinforced PA,Bearing Options: CeramicSpeed Standard or Coated,CeramicSpeed Pulley Wheel Oil, 15 ml. dropper bottle,Compatibility: SRAM Red AXS and SRAM Force AXS. 2020 SRAM Red eTap 11 speed derailleur with the orbit clutch. This system is also compatible with the wider range Force AXS medium cage derailleur.,Cassette Compatibility: Fits 12 speed 10 to 36-tooth cassettes. For use with the 11 speed clutched derailleur fits 11-32 cassettes.,Spring Tension Settings: 2 spring,Speed: 12 speed,Discipline: Road and Gravel/Cross.Special notes:Custom tool included for removal of stock cage and securing of OSPW. The factory clutch mechanism will remain intact and in stick form. There is no damage or modification to the clutch for the installation of the OSPW System.
The SRAM X01 Eagle AXS derailleur carries over many of the features of the mechanical X01 derailleur, such as the useful Cage Lock and Type 3 Roller Bearing Clutch. Added to this are several all new technologies that help improve performance and durability. Slick shifting wireless rear derailleurFor use with SRAM AXS Controller and 12-speed Eagle drivetrains (Sold separately)Type 3 Clutch provides impeccable chain retentionOverload Clutch prevents damage from crashes and rock strikesBattery not included - sold separatelyControlled by SRAM's new AXS technology, the derailleur offers crisp, instantaneous shifting and a super-clean cable free design, taking mere seconds to install and sync with the AXS controller using the AXS app. Further improving shifting and durability is the Overload Clutch. This works to protect the rear derailleur in case of a direct strike to it from a trail-side obstacle or crash, protecting the derailleur and keeping it shifting smoothly. The pulley cage is also 10mm shorter for improved clearance, further reducing the risk of damage. The system is completely water and dust proof to IP67K, so the elements are shrugged off with ease. The battery (sold separately) is shared with other AXS and eTap components, so can be swapped if needed and lasts between 20-30 hours of riding between charges.
Wider = Improved Performance Developed with Team Spectra, this race-ready front wheel features an 85mm deep aero rim profile, meaning you get more speed for the same effort. A wider rim profile creates a more linear contour with the tyre to increase the Primavera 85's aerodynamic properties. Greater Strength To Weight Ratio Built up using a SR1 CNC machined 6061 alloy hub and DT Swiss straight pull spokes, this model creates a stiffer wheel with a greater strength to weight ratio and more reactivity. Featuring an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier. Aero Advantage If you're looking for an advantage in your next TT or Triathlon event, the Prime Primavera 85 Carbon front wheel is a perfect choice of upgrade to improve your ride. Lightweight Rim Prime has experimented with numerous types of resin and tested countless new lay ups before they settled on the new and improved Primavera 85 rim. But that’s not all, they've upgraded to a higher grade of carbon, saving precious grams, and improving on the impact strength/weight ratio making the new Primavera 85 their best rim yet. In The Box: x2 spare spokes x2 nipples Tubeless Valve QR skewer Prime Carbon brake pads Spares (available separately) SR1 Front Axle Silver QR SR1D QR Front End Caps Black QR Prime Crash Replacement Programme At Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP. Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.
Developed with Team Spectra in search of the marginal gains that could help them in some of the UK's biggest races, this rear wheel is designed for flat road races as well as time trial and triathlon racing. Featuring a stiff and lightweight T800 UD carbon fibre rim construction, this model provides an excellent strength-to-weight ratio to give you maximum smoothness without adding any unnecessary excess grams to your ride. Prime has also put this version through its CFD testing process, where multiple sizes and shapes were used before coming up with the perfect blend of strength, weight and aerodynamics. Greater Strength To Weight Ratio Built-up using an SR1D, CNC machined 6061 alloy hub body and DT Swiss straight pull spokes, the Prime Primavera 56 Carbon Disc Rear Wheel creates a stiffer wheel with a greater strength to weight ratio and more reactivity. Its Star Ratchet hub also provides superior reliability, due to each of the ratchets engaging simultaneously every time. Prime has also ensured that tool free freehub conversion is possible. Coming kitted out with an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier. Tubeless Ready Carbon Rear Wheel Developed to give modern riders and racers a much-needed performance upgrade, this rear wheel comes kitted out with tubeless ready technology. This means that you can choose to run it tubeless and enjoy advantages such as the ability to run lower tyre pressures for increased stability, comfort and fewer chances of flats or punctures. In The Box: x2 Spare Spokes x2 Nipples Tubeless Valve QR Skewer 10 speed spacer QR End Caps Spares (available separately) 54 Tooth Star Ratchet Upgrade Kit Black One Size SR Hub Bushing Black 12mm Star Ratchet Grease Neutral <100ml SR1D 12mm Rear End Caps Black 12mm SR1D QR Rear End Caps Black QR SR1D Rear Axle Silver 12 x 142mm SR Freehub Body - Campagnolo Black 9/10/11 Speed SR Freehub Body - Campagnolo 13 Speed Black 13 Speed SR Freehub Body - Shimano Black 9/10/11 Speed SR Freehub Body - XDR Black 12 Speed Prime Crash Replacement Programme At Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP. Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.
Prime Primavera 85 Carbon Rim Brake Front Wheel Wider = Improved PerformanceReady for racing, this front wheel features an 85mm deep aero profile that delivers more speed for the same effort. Ideal for time trial (TT) and triathlon (tri) racing, this model was developed with Team Spectra in search of the marginal gains that could help them in some of the UK's biggest races. By using a wider rim profile, it creates a more linear contour with the tyre to increase the Primavera 85's aerodynamic properties.Greater Strength To Weight RatioBuilt up using a SR1 CNC machined 6061 alloy hub and DT Swiss straight pull spokes, this model creates a stiffer wheel with a greater strength to weight ratio and more reactivity. Featuring an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier.Aero AdvantageIf you're looking for an advantage in your next TT or Triathlon event, the Prime Primavera 85 Carbon Rim Brake Front Wheel is a perfect choice of upgrade to improve your ride.Lightweight RimPrime has experimented with numerous types of resin and tested countless new lay ups before they settled on the new and improved Primavera 85 rim. But that's not all, they've upgraded to a higher grade of carbon, saving precious grams, and improving on the impact strength/weight ratio making the new Primavera 85 their best rim yet.Features: Rim Material: T800 UD Carbon Fibre Use: Time Trial (TT) and Triathlon (Tri) Axle Size Compatibility: Front: 100x9mm QR Rim Width: 20.3mm (internal); 27.5mm (external) Rim Depth: 85mm Rim Type: Clincher Hub: SR1 CNC machined 6061 Alloy hub body Hub Bearings: 2x 699 Spokes: Aerolite, 226mm Tubeless Ready: Yes UCI Approved: Yes Brake Type: Rim Brake Rider Weight Limit: 100kg Weight: 888gIn The Box: 2 spare spokes 2 nipples Tubeless Valve QR Skewer Prime Carbon brake padsSpares (available separately)SR1 Front Axle Silver QRSR1D QR Front End Caps Black QRPrime Crash Replacement ProgrammeAt Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP.Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Primavera 56 Carbon Disc Rear WheelDeveloped with Team Spectra for flat road races as well as time trial and triathlon racing, this rear wheel features a stiff and lightweight T800 UD carbon fibre rim construction to give you maximum performance without adding any unnecessary excess grams to your ride. Prime has also put this version through its CFD testing process, where multiple sizes and shapes were used before coming up with the perfect blend of strength, weight and aerodynamics.Greater Strength To Weight RatioBuilt-up using an SR1D, CNC machined 6061 alloy hub body and DT Swiss straight pull spokes, the Prime Primavera 56 Carbon Disc Rear Wheel creates a stiffer wheel with a greater strength to weight ratio and more reactivity. Its Star Ratchet hub also provides superior reliability, due to each of the ratchets engaging simultaneously every time. Prime has also ensured that tool free freehub conversion is possible. Coming kitted out with an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier.Tubeless Ready Carbon Rear WheelDeveloped to give modern riders and racers a much-needed performance upgrade, this rear wheel comes kitted out with tubeless ready technology. This means that you can choose to run it tubeless and enjoy advantages such as the ability to run lower tyre pressures for increased stability, comfort and fewer chances of flats or punctures.Features: Rim Material: T800 UD Carbon Fibre Use: Road, Time Trial (TT) and Triathlon (Tri) Axle Size Compatibility: 142x12mm Rim Width: 23mm (internal); 30mm (external) Rim Depth: 56mm Rim Type: Clincher Hub: SR1D, CNC machined 6061 Alloy hub body Freehub: Shimano/SRAM 9/10/11 speed Hub Bearings: 1x 6902, 1x 17287, Freehub: 2x 6802 Spokes: Straight Pull DT Aerolite (non-drive), DT Aero Comp (drive side) Tubeless Ready: Yes UCI Approved: Yes Brake Type: Disc Brake Disc Mount: Centre Lock Rider Weight Limit: 110kg Weight: 955gIn The Box: 2 spare spokes 2 nipples Tubeless Valve QR Skewer 10 speed spacer QR end capsSpares (available separately)54 Tooth Star Ratchet Upgrade Kit Black One SizeSR Hub Bushing Black 12mmStar Ratchet Grease Neutral 100mlSR1D 12mm Rear End Caps Black 12mmSR1D QR Rear End Caps Black QRSR1D Rear Axle Silver 12 x 142mmSR Freehub Body - Campagnolo Black 9/10/11 SpeedSR Freehub Body - Campagnolo 13 Speed Black 13 SpeedSR Freehub Body - Shimano Black 9/10/11 SpeedSR Freehub Body - XDR Black 12 SpeedPrime Crash Replacement ProgrammeAt Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP.Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
◌CeramicSpeed OSPW System Shimano R9200-R8100The OSPW System Shimano R9200-R8100 from CeramicSpeed is designed and engineered to enhance performance for the Shimano 9200 and R8100 series rear derailleurs. It features an integrated stop tower for simple installation and durability, and it significantly enhances gear shifting performance.The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world. This OSPW System has hand built CeramicSpeed Bearings installed in each pulley and comes with a 4-year warranty as standard and a lifetime warranty when choosing coated bearings. CeramicSpeed OSPW Systems are an industry-leading product, chosen by World Champions and top athletes around the world. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings. For 8100 derailleurs, the cage uses the factory derailleur body washer. 9200 derailleurs will require the new included derailleur body washer. Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men's and Women's Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. This OSPW System has hand built CeramicSpeed Bearings installed in each pulley and it comes with a four-year manufacturer's warranty as standard. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with standard CeramicSpeed Bearings. Also included in the box is a 15ml dropper bottle of CeramicSpeed Bearing Oil. Technical DataThe overall power savings of the OSPW System for Shimano 9200 reach 30%-60%, or more in some cases, over a stock setup. The oversized pulley wheels have 3-5 times longer lifetime than the commonly used standard pulleys on the market. Maintenance of CeramicSpeed OSPW SystemsRegarding the maintenance of your OSPW System, it is important that you properly lubricate your bearings in order to ensure optimal performance and maximum longevity. Add oil by using the lubrication points on the back cage plate, so that oil can penetrate the bearing. Do this when you lubricate your chain, if you have washed your bike or after riding in wet or muddy conditions. Please note: While there are visual similarities in the 9100 Series OSPW and 9200 Series OSPW, the spring tension settings, rotation stop tower placement, and mounting pin depth are slightly repositioned and as such the systems are not cross-compatible. Features: Pulley Wheel Material: Aluminium Cage Material: Carbon Reinforced PA Bearings: Standard or CeramicSpeed bearings (multiple options in the selection menu) CeramicSpeed Grease/Oil: Pulley Oil (Standard) Use: Road Speed: 12-Speed Compatibility: Shimano Dura Ace 9200 / Ultegra 8100 Cassette Compatibility: Fits 11-30T and 11-34T Shimano 12 speed cassette Spring Tension Settings: 4 spring tension settings In The Box: A complete 13-tooth/19-tooth OSPW System, CeramicSpeed Bearing Oil in 15ml dropper bottleTechnologies: Integrated stop tower for simple installation and durability Lifetime warranty on system cage Trusted design by World Champions and top athletes around the world 13/19 pulley wheel sizes Standard or CeramicSpeed bearings (multiple options in the selection menu) Hand built CeramicSpeed bearings are installed in each pulleyBuy CeramicSpeed Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
CeramicSpeed OSPW System Campagnolo 12s EPS GoldFeaturing a moulded carbon fibre cage, this special limited edition OSPW System offers the best balance of low weight and durability. It is developed specifically for the Campagnolo 12 speed EPS system and offers a three-spring tension setting that allows for optimal setup based on riding conditions.Limited Edition Campagnolo OSPW SystemLike every other CeramicSpeed Oversized Pulley Wheel System, this is developed, designed and handbuilt in Denmark. It is available with either CeramicSpeed Standard or Coated pulleys (choose option from the menu) with a lifetime CeramicSpeed warranty on the coated version and four years CeramicSpeed warranty on the standard version.The system is not compatible with 12 speed mechanical.Features: Pulley Wheel Material: Aluminium Cage Material: Carbon reinforced PA Use: Road Speed: 12 speed Pulley Wheels: CeramicSpeed 13-tooth upper and 19-tooth lower Bearing Options: CeramicSpeed Standard or Coated (choose from the menu) Compatibility: Campagnolo 12-speed Super Record EPS (electronic). Please note, the system is not compatible with 12-speed mechanical Cassette Compatibility: Fits cassettes from 11 to 34-tooth Spring Tension Settings: 3 spring tension settings Ceramic Speed Pulley OilBuy CeramicSpeed Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM’s own wireless technology provides a secure connection and the removable battery has a 1000km range. So, if you forget to top up your battery and it runs low miles from home, simply swap it over with the front derailleur's battery to get back on the road with a full cassette range. It also benefits from the same quality construction of the mechanical SRAM Red version, featuring ceramic pulley bearings, a carbon cage, and an anodised alloy body. Technologies: AIREA™ - Utilizing 128-bit encryption, eTap® shift signals are transmitted and received in accordance with SRAM’s proprietary wireless protocol known as AIREA. Each time an eTap groupset is paired, a new encryption code is generated and assigned to the components in this group to ensure complete shifting security. eTAP - All of the underlying tech in the SRAM RED® eTap groupset such as wireless shifting, advanced battery power management and mechatronics technologies are all 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. Exact Actuation: When SRAM launched their road technology from scratch they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing and exact cable tension. The result: the easiest index shifting system to set up and it stays that way.