BMX HollowTech II crankset for serious racing using the new external bottom bracket bearing system to maximum effect Lightweight yet rigid design is highly durable and incredibly strong HollowTech II bottom brackets bearings are mounted outboard of the frame increasing there diameter and placing them more widely apart; this dramatically changes the load on the bearings increasing rigidity and bearing service life We recommend that this bottom bracket is initially installed by a bike shop to ensure perfect bottom bracket facing and fit Comes complete with chain ring fixing bolts and nuts For use with a single chainring in a choice of sizes from 34 tooth to 46 tooth
Shimano FC-R2000 Claris Compact 8 Speed ChainsetThe Claris R2000 Compact Chainset is designed for use on a 2x8 drivetrain and features SG-X chainrings with strategically placed chain pick-up pins and tooth profiles, which ensure fast and positive shifting. The Claris R2000 also benefits from trickle-down technology from Shimano's top-end models such as the 4-arm crank design.Efficient Power TransferThe 4-arm layout gives this chainset a modern look and increases the rigidity. It's also compatible with Shimano's "Hollowtech II" bottom bracket system, which consists of large external bearings on the bottom bracket and a large spindle attached to one crank arm. This system offers smoother performance and enhanced power transfer when compared to more basic internal bearing systems.Features:Material: Crank Arms: Aluminium; Axle: Steel; Chainrings: SteelHard-wearing SG-X chainringsLightweight crank armsCompatible with 8-Speed Hyperglide (HG) chainsBottom Bracket Compatibility: Hollowtech II (not included)Tooth Count: 50/34TBCD: 4x110mmChainline: 43.5mmA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Claris R2000 also benefits from trickle-down technology from Shimano's top-end models such as the 4-arm crank design. Efficient Power Transfer The 4-arm layout gives this chainset a modern look and increases the rigidity. It's also compatible with Shimano's "Hollowtech II" bottom bracket system, which consists of large external bearings on the bottom bracket and a large spindle attached to one crank arm. This system offers smoother performance and enhanced power transfer when compared to more basic internal bearing systems.
Shimano Sora Left Crank Arm*Image for display purposes only
2-piece design double-ring 9-speed chainset from the excellent value Sora rangeSG-X chainrings feature strategically placed chain pick-up pins and tooth profiles to ensure fast and positive shifting,2-piece design allows the bottom bracket bearings to be spaced wider apart (outboard the frame) or press fit 86.5mm enabling the use of larger bearings and an increased axle diameter,There is also the benefit of easier installation, adjustment and maintenance,Compatible with Hyperglide (HG) chains,Aluminium crank arms,Aluminium outer chainring with hard-wearing steel inner chainring,Compatible with 9-speed drivetrains.
Key Features:2-piece design double-ring 9-speed chainset from the excellent value Sora range,SG-X chainrings feature strategically placed chain pick-up pins and tooth profiles to ensure fast and positive shifting,2-piece design allows the bottom bracket bearings to be spaced wider apart (outboard the frame) or press fit 86.5mm enabling the use of larger bearings and an increased axle diameter,There is also the benefit of easier installation, adjustment and maintenance,Compatible with Hyperglide (HG) chains,Aluminium crank arms,Aluminium outer chainring with hard-wearing steel inner chainring,Compatible with 9-speed drivetrains..
HOLLOWTECH II Crankset (11-speed)Key Features:Balances weight and efficiency without sacrificing stiffness,Rider Tuned performance with numerous gear combinations,Wider gear pitch increases chain clearance with small/gearings allows for 410 mm chain stays on 135 mm O.L.D.,Optimum power transfer,Multiple options provide greater choice,Greater frame compatibility.
Lightweight HollowTech 2 105 11-speed chainset. Innovative HollowTech forged and anodised aluminium crank arms utilise a hollow design that minimises flex and keeps the weight low. The chainring teeth have been developed to work in conjunction with HG-X 11-speed chains for increased contact to provide greater efficiency and improved power transfer HollowTech 2 allows the bottom bracket bearings to be spaced wider apart enabling the use of larger bearings and an increased axle diameter Can be used with Shimano external or press-fit bottom brackets The system allows for easier installation adjustment and maintenance Lightweight anodised SG-X aluminium chainrings for smooth and precise shifting
Replacement Shimano chainrings for FC-R7000 cranks. Available in black or silver and different teeth sizes.
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.
The HollowTech II 11-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive ridersHollowGlide 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 11-speed HG-EV 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 and 410mm chain stay length,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).