The Shimano FC-RS520 105 Double 12-Speed Chainset is a 2-piece crank that uses an outboard, 24 mm bottom bracket and features 2x12 speed 50-34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames. The chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer.Lightweight 12-speed 2-piece design chainsetInnovative forged and anodised aluminium crank arms for minimum flexThe chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameterCan be used with Shimano external or press-fit bottom bracketsThe system allows for easier installation, adjustment, and maintenanceLightweight anodised aluminium chainrings for smooth and precise shifting
The Shimano FC-RS520 105 Double 12-Speed Chainset is a 2-piece crank that uses an outboard, 24 mm bottom bracket and features 2x12 speed 50-34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames. The chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer.Lightweight 12-speed 2-piece design chainsetInnovative forged and anodised aluminium crank arms for minimum flexThe chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameterCan be used with Shimano external or press-fit bottom bracketsThe system allows for easier installation, adjustment, and maintenanceLightweight anodised aluminium chainrings for smooth and precise shifting
The Shimano FC-RS520 105 Double 12-Speed Chainset is a 2-piece crank that uses an outboard, 24 mm bottom bracket and features 2x12 speed 50-34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames. The chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer.Lightweight 12-speed 2-piece design chainsetInnovative forged and anodised aluminium crank arms for minimum flexThe chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameterCan be used with Shimano external or press-fit bottom bracketsThe system allows for easier installation, adjustment, and maintenanceLightweight anodised aluminium chainrings for smooth and precise shifting
The Shimano FC-RS520 105 Double 12-Speed Chainset is a 2-piece crank that uses an outboard, 24 mm bottom bracket and features 2x12 speed 50-34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames. The chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer.Lightweight 12-speed 2-piece design chainsetInnovative forged and anodised aluminium crank arms for minimum flexThe chainring teeth have been developed to work in conjunction with Hyperglide plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameterCan be used with Shimano external or press-fit bottom bracketsThe system allows for easier installation, adjustment, and maintenanceLightweight anodised aluminium chainrings for smooth and precise shifting
Lightweight 12-speed 2-piece design chainset. Innovative forged and anodised aluminium crank arms for minimum flex The chainring teeth have been developed to work in conjunction with Hyperglide&plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer 2-piece design 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 aluminium chainrings for smooth and precise shifting
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.
The Alfine chainset is a light weight sleek 2-piece design using the proven external bottom bracket system:2-piece design is both lightweight and stiff for optimum power transfer,Built in single sided chain guard,170 mm crank arm length,Chainring is for use with 9-speed chains and CS-S500 rear sprocket,BS thread bottom bracket included for 42.7 mm chain line,5-arm 130 PCD.
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.
Shimano FC-T4060 Alivio Mountain Bike ChainsetMade with trekking in mind, the FC-T4060 Alivio chainset is suitable for use with Hollowtech bottom brackets, which come in a variety of sizes to suit many modern frames making this an extremely versatile chainset. This mountain bike chainset is made from a lightweight aluminium construction for durable quality and smooth and reliable shifting, whatever challenge you meet on the trail ahead.Please Note: Bottom bracket is NOT included.Features:Crank Construction: Hollowtech crank armCassette Compatibility: 9-SpeedBolt Circle Diameter: 104/64mmCrank Arms: Hollowtech IIChainline: 50mmCrank Arm Length: 170mmSpeed: 9 SpeedBottom Bracket Type: ThreadedNumber of Chainrings: DoublePart No: FC-T4060A 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.
Key Features:Great value Deore HollowTech II design chainset with chainguard for 10-speed Dyna-Sys MTB HG-X transmissions,The HollowTech II chainset features hollow forged crank arms which are both lightweight and 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,96 / 64 mm bolt circle diameter,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..
Specification: Taking many features from pro-level equipment, this 2-piece cap-free design Tiagra chainset offers unbeatable performance,2-piece cap-free design is quick and easy to install whilst being lighter and stiffer than a traditional crank/ bottom bracket assembly,SG-X chainrings feature strategically placed chain pick-up pins and tooth profiles to ensure fast and positive shifting,Designed to work with HollowTech II type bottom bracket cups,Compatible with 10-speed HG-X chains,Anodized aluminium crank arms,Lightweight aluminium chainrings,4 arm, 110 mm bolt circle diameter.