The HollowTech II 12-speed Ultegra chainset with integrated power meter offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders Accurately calibrated strain gauges are integrated inside the crank arm, this provides a stable measurement system through rotation from both sides for extremely precise data,+/-2% accuracy of strain gauge measured power,Bluetooth and ANT+ with wireless firmware update and data acquisition system,Easily rechargeable integrated battery with fully waterproof reliable electric system,HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load,The chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transfer,Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight,Wide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with O.L.D. 135 / 142 mm,A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines,HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency,HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately).
Great value tough and stylish Mega-9 Alivio chainset offering slick hyperdrive shifting performance for off road enthusiastsThe 2-piece design chainset features an external bottom bracket system which is a lightweight rigid design that is incredibly strong and durableLightweight and rigid steel bottom bracket axleHyperdrive SG-X chainrings for fast and smooth gear shiftsReplaceable chainrings4-arm chainring, 104 / 64 mm BCD9-speed compatible chainringsComes with chainguard, chaincase compatible.
Enjoy quicker, more precise front shifting and efficient power transfer thanks to its HOLLOWGLIDE structure. It cuts weights yet maintains stiffness, strength and performance. What’s more, the crank arm length starts at 160mm so smaller riders can benefit from SHIMANO’s legendary shifting.An attractive aluminum crank with hollow arms for lightweight, rigidity, and durabilityThe newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look. The resin ribs on the back of the chainrings are SHIMANO 105's unique structural design that achieves both thorough weight reduction and crisp shifting performance.Key Features:Optimal balance of stiffness, strength, weight and rotational performance,HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting,Crank arm length: 160, 165, 170, 172.5, 175 mm Gear combination: 50-34T, 52-36T Q-factor: 148 mm.
Shimano GRX’s mid-priced RX600 cranks employ a 2-piece design available in a 2x10 configuration. All GRX cranksets use a new, +2.5mm chainline for increased tire and frame clearance. The 2x features a Wider-range 46-30T ratio, this, when paired with the available 11-34 cassette, offers an exceptionally low climbing gear while maintaining a ratio that allows riders to take advantage of strong tailwinds and long descents.Choice. Shimano’s new GRX line is all about choice. Shimano doesn’t want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. While we’ve long been fans of double chainring drivetrains, we also recognize the value of a single chainring system. With GRX, Shimano offers both, each with gearing options that allow you to tailor your drivetrain to suit your tastes.With two different derailleur cage lengths, Shimano GRX ensures stable shifting and chain retention across a wide range of gearing options. Looking for maximum range while maintaining road cassette progression? Go with GRX’s 800 series 2x11 RD-RX810 or Di2 RD- RX815 rear derailleurs, designed for close ratio clusters, with 48/31 chainrings and an 11-34 cassette. Paired with 700c x 40mm tires, it delivers a top gear similar to a road bike with 25mm tires and a 50 x 11 gear. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. It is the lowest gear currently on offer for premium road drivetrains (aside from Shimano’s own GRX 2x10 30-36 offering), perfect for climbing loose, dirt and gravel surfaces.Want to drop some weight, simplify your shifting, and still maintain a versatile range? Consider the 1x11 GRX option with either Shimano’s 11-40 or 11-42 cassette and a 40 or 42-tooth equipped crankset, shifted by a RD-RX812 or Di2 RD-RX817 wide ratio rear derailleur. You’ll lose a little, absolute top speed, but still love the 1:1 low gear ratio. If you live in an area without sustained or steep climbs, you might love the smaller gear steps of that same 1x11 front chainring with an 11-34 cassette. Options abound.What about when the weather turns autumnal and you contract a case of cyclocross fever? GRX 1x11 can quickly transform from gravel fun to CX focused with the change of a cassette.No matter the option you select, GRX rear derailleur offerings feature Shimano’s SHADOW Plus chain stabilizer that can be turned on or off depending on conditions. SHADOW Plus revolutionized the mountain bike world and now it’s been tuned for gravel and rough road riding in GRX. With a quieter drivetrain, SHADOW Plus helps you engage with your surroundings and enjoy time outside.Today’s gravel riders demand more of their bikes and of themselves. Shimano GRX gives them the options they need to Explore Beyond, tailoring their drivetrains to suit their needs and exceed their expectations. We’ll see you out there!Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress-free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond. Introducing SHIMANO GRX.Game-Changing Innovation.Even on the roads less travelled, our new GRX tech will keep things smooth, silent and safe – with you always in control.Designed from the ground up for gravel adventure.Mix and match components to customise your bike for a wide range of terrains – and ride the way you want!Key Features:Optimum gearing for mixed terrains and riding styles,Wider gear range for long tours or unknown terrain,Crank length options: 170/172.5/175mm,Gear options: Double 46-30TT.
Key Features:Entry level 7/8-speed chainset offering slick hyperdrive shifting performance for off road enthusiasts,Hyperdrive SG-X chainrings for fast and smooth gear shifts,7/8-speed compatible steel chainrings,For use with 123 mm square taper bottom brackets,.*Please Note: Image is for display purposes only. Item is available with or without chain guard - please check before ordering.
Great value Deore M5100 2-piece design chainset for 10/11-speed MTB transmissions. Forged crank arms rigid whilst being incredibly strong and durableKey Features:HollowTech II integrated bottom bracket design uses a wide bearing placement with a large axle diameter for increased stiffness, efficiency and added durability,SG-X chainring with patented spike pins give smooth and fast gear shifts under load,We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit,51.8 mm chain line for use with 148 mm O.L.D. frames,11-speed compatible.
Great value Deore M4100 2-piece design chainset for 10-speed Dyna-Sys MTB HG-X transmissionsForged crank arms rigid whilst being incredibly strong and durable,HollowTech II integrated bottom bracket design uses a wide bearing placement with a large axle diameter for increased stiffness, efficiency and added durability,SG-X chainring with patented spike pins give smooth and fast gear shifts under load,We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit,48.8 mm chain line for use with 135/142 mm O.L.D. frames,51.8 mm chain line for use with 148 mm O.L.D. frames,10-speed Dyna-Sys compatible.
A high performance chainset from the trekking group, using the most advanced 10-speed Dyna-Sys chainringsForged HollowTech II aluminium cranks offer unrivalled strength-to-weight ratioLightweight construction with external super smooth bottom bracket bearings for efficient use48-36-26T chainring combinationHG-X chainring with patented spike pins give smooth and fast gear shifts under loadStiffness and strength increased with advanced design due to wider spaced bearings and oversized axleFor use with 10-speed HG-X MTB chains onlyWe recommend that this bottom bracket is initially installed by a bike shop to ensure perfect bottom bracket facing and fit50 mm triple ring chain line for use in conjunction with 135 / 142 mm O.L.D..
Experience a better bike ride. SRAM Rival eTap AXS features the technology modern riders demand—intuitive wireless shifting, innovative gearing, integrated power measurement, AXS connectivity, and refined hydraulic disc brakes. It’s low on complexity, but rich with features.Designed to handle whatever you can throw at it. Polished aluminum crankarms in a wide range of lengths and the DUB bottom bracket system mean the Rival crankset will keep spinning, no matter what. A tight and consistent 13-tooth gap between chainrings makes for accurate and dependable shifting.• X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear• Crisp and accurate front shifts• DUB bottom bracket adds durability, simplicity • and virtually universal frame compatibility• Available in 48/35T and 46/33T configurations(BB not included)
Go further with the SRAM Force® 43/30 wide crankset. Its 43/30 chainrings encourage exploring the most challenging routes on the newest crop of versatile and fun drop bar bikes. Shifting is smooth, accurate, and dependable using our proven X-Range™ gearing based around a tight 13-tooth difference between the small and big rings. The wider stance of the chainrings provides clearance for extra wide tires, giving you the option to explore new, more challenging routes.Features:X-Range™ gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear,Crisp and accurate front shifts,Wide chainline crankset for bikes with up to 700x45c or 27.5x2.1” tire widths (43/30 chainrings only),Longer DUB crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross-compatibility across brands,Requires Force wide front derailleur,DUB™ bottom bracket adds durability and simplicity.SPECIFICATIONSSpeeds: 12,BB Compatibility: All SRAM Road DUB BBs,Chainring Size: 43/30,Crank arm length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm,Chainline: 47.5mm,BB Spindle Interface: DUB,Chainring material: Aluminum,Guard: No Guard,Bolt Circle Diameter (BCD): 94 BCD,Crank arm material: Carbon,Color (Crank arm): Natural carbon.
Experience a better bike ride. SRAM Rival eTap AXS features the technology modern riders demand—intuitive wireless shifting, innovative gearing, integrated power measurement, AXS connectivity, and refined hydraulic disc brakes. It’s low on complexity, but rich with features.Power every ride. We’ve taken the reliability, elegance and features of Quarq’s legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever.• Direct mount chainrings in 38T through 46T• Wide chainline crankset for bikes with the widest gravel tires• An elegant integrated design• DUB-PWR spindle-based unit measures left side power to calculate total watts• Proven Quarq reliability and accuracy• Long battery life (400+ hours) to power a season of rides• User replaceable lithium AAA battery• DUB bottom bracket adds durability and simplicity• Waterproof (IPX7 waterproof to 1 meter for 30 minutes)• Lightweight (less than 40g heavier than standard crankset) (BB not included)
Experience a better bike ride. SRAM Rival eTap AXS features the technology modern riders demand—intuitive wireless shifting, innovative gearing, integrated power measurement, AXS connectivity, and refined hydraulic disc brakes. It’s low on complexity, but rich with features.Power every ride. We’ve taken the reliability, elegance and features of Quarq’s legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever.• An elegant integrated design• DUB-PWR spindle-based unit measures left side power to calculate total watts• Proven Quarq reliability and accuracy• Long battery life (400+ hours) to power a season of rides• User replaceable lithium AAA battery• DUB bottom bracket adds durability and simplicity• Waterproof (IPX7 waterproof to 1 meter for 30 minutes)• Lightweight (less than 40g heavier than standard crankset)(BB not included)