Shimano Bottom Bracket Ultegra SM-BB72-41B Press-Fit 86.5mm x 41mmType: Press Fit Bottom bracket body width: 86. 5mm Shell diameter: 41mm

Pad Standard 1                                                : B03S Resin

The RaceRocket® HP mounts to frame with included bracket

The built-in keyring makes it convenient to hang or tether

HOLLOWGLIDE - Hollow technology on outer chainring

Weight: 438g (15

For bicycle and wheelchair tires in size 20" inch (ETRTO 23/25-451)

the derailleur is equipped with an ON / OFF switch for chain tensioner

Quieter Riding Experience

Multi-Clamp (28

Easy-to-adjust entry and release tension settings

which increases rigidity and counteracts torsion under load

The new I-SPEC EV lever offers a wide range of adjustments including increased lever slide range