Shimano Sora FC-3550 9 Speed Compact Chainset - 50/34T - 170mm - Inc ChainguardShimano Sora FC 3550 9 Speed Compact Chainset 50 34T 170mm Inc Chainguard The Shimano Sora FC 3550 Sora 9 Speed Compact Chainset is the latest and greatest addition to the Sora range, with several key design features the Sora 3550 is the pinnacle of ease of use and performance in a 9 speed chainset! The unique design of the Sora includes a 2 piece design double ring, offering you the chance to use larger bearings and an increased axle diameter thanks
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The Shimano Sora FC-3550 Sora 9 Speed Compact Chainset is the latest and greatest addition to the Sora range, with several key design features the Sora 3550 is the pinnacle of ease of use and performance in a 9-speed chainset! The unique design of the Sora includes a 2-piece design double ring, offering you the chance to use larger bearings and an increased axle diameter thanks to the space for wider bottom bracket bearings!
With an Aluminium/Steel build material the Sora is super light-weight while offering just the right level of strength to withstand the harder riding conditions, and with the intuitive design the Shimano Sora FC-3550 Sora 9 Speed Compact Chainset is easy to install, adjust and maintain at any time! The Chainrings themselves feature pick-up pins for the chain and with the improved tooth profiles the shifting on the Road Chainset is super responsive and accurate!
SG-X chainrings feature strategically place 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) 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
Includes chain protection ring
110 mm bolt circle diameter
Crank arm length: 170mm
Tooth range: 50T / 34T
Comes complete with bottom bracket for 68 and 73 mm frames (SM-BB4600)