Shimano Dura-Ace R9100 Pedals +4 mm Longer Axle X-Bionic which give you the great

which give you the great performance of top drawer shoes at half the price

like all Park Tool products

No removal of battery required for charging

Ride longer and faster without overheating

Its durable

Shimano Dura-Ace R9100 Pedals +4 mm Longer Axle X-Bionic which give you the greatThe lightest and most efficient DURA ACE pedal that Shimano has ever made. Rigid and lightweight construction paired with an extra wide platform and wide bearing placement add up to ultimate power transfer and pedaling efficiency. The PD R9100 is the top choice for the road racer, triathlete, or serious cyclist. This is the longer axle (+4 mm) option. The +4 mm option is for increased Q factor width (increased stance width). The PD R9100 is the Top of