Aluminium construction

Roller Bearing Clutch controls chain tension for consistent shifting

Allows you to connect your laptop or desktop to ANT+ trainers and accessories

Fits inside handlebars with 15

Linear resistance boosts workout intensity to match each pedal stroke and gear click

Shimano TIAGRA CN-4601 10-Speed Chain Silver closeout Aluminium constructionSuper Narrow Hyperglide (HG) series 10 speed compatible directional chain, recommended for Tiagra drivetrainsChain uses a directional design with specifically shaped inner and outer plates to optimise shifting over the chainset and cassetteOuter plate design has been developed to reduce the chance of chain suckThe inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedalling,