Shimano Dura-Ace Di2 FD-R9150 Front Derailleur Muc-offJuneSale and thru-axles front and rear

and thru-axles front and rear add stiffness to the frame and wheels even under heavy cornering loads

The addition of the twelfth sprocket allows a linear upshift or downshift by a single tooth

While these wheels are stronger than many mountain bike wheels in the market

Your pedaling action will feel smoother

XTR FC-M980

Shimano Dura-Ace Di2 FD-R9150 Front Derailleur Muc-offJuneSale and thru-axles front and rearThe SHIMANO DURA ACE R9150 DI2 front derailleur delivers quick and smooth front shifting even under high pedaling torque. It has programmed chain guide trim settings and can be used in full or semi SHIMANO SYNCHRONIZED SHIFT modes. Specifications Ergonomic shifting operation without stress SHIMANO synchronized shift Race endurance for less damage in crash Quick and smooth front shifting "under" high pedaling torque Maintains compact and smooth