Sell SHIMANO Dura-Ace R9150 Di2 Group Set

The Shimano Dura-Ace R9100 Compact Crankset is completely re-designed to offer the very best combination of light weight and stiffness. It features Shimano's iconic 4-arm hollow spider that is made from hollow-forged aluminium.

Although the crank arms and spider arms are noticeably bigger, which increases stiffness, the overall weight has dropped by 7g over the previous edition of Dura Ace.

The crankset has been adapted to work with disc brake road bikes that generally have 135mm rear hub spacing and shorter chainstays without the need to increase Q-factor thanks to its wider chainring spacing.

Dura-Ace R9100 Crankset Features:

Material: Hollow-forged Aluminium

Enhanced design saves 7g while maintaining rigidity

Iconic 4-arm construction maintains high rigidity and reduces weight

Optimised crank arm design strengthens key stress zones

New chainring tooth profile is adapted for race bike specific disc brake systems

Accommodates shorter chainstays (410mm) with 135mm OLD

Hollowglide chainring construction maintains smooth shifting whilst reducing weight and increasing stiffness

Dura-Ace Di2 R9150 2x11 STI Shifter Set

The Dura-Ace Di2 9150 shifters feature an ideal ergonomic shape that is comfortable in the hand and have been updated to be more precise and more adaptable than previous editions. The shift paddles now feature a more defined "click" and have been extended in length for more confident and comfortable shifting.

E-Tube compatibility means that the function of the shift paddles can be customised to suit the rider.

The Di2 R9150 shifters now include Synchro Shift technology that automatically moves the rear derailleur when the front ring is changed or moves the front chainring with the rear shifts to optimise chainline and drivetrain efficiency.