Shimano Goes Carbon for 2011 Dura-Ace Pedals
Tested over the past few months in the pro peloton, Shimano’s new Dura-Ace PD-7900 SPD-SL pedal replaces the aluminum body with a proprietary long-fiber injection molded carbon fiber to drop about 30g per pair.
The axles and bearings are contained within a billet aluminum cylinder bonded to the interior of the pedal body. This keeps the bearings from sitting directly on the carbon and provides a stronger, more durable design. Each pedal uses three sets of bearings to keep things rolling smooth and steady under load.
The top uses a redesigned stainless steel plate to create a durable but smooth contact patch for the base of the cleat, allowing it to move naturally without wearing into the carbon body.
Full specs, weights, etc., after the break…
Long Fiber Injection Molded Carbon Body
– Injection molding insures precise shape and consistent material distribution
– Shimano proprietary long fiber carbon creates a stronger body
Three Bearing Cartridge Axle
– Three separate sets of bearings along the axle create better pedal stability and
smooth rotation regardless of load
– An independent billet aluminum cartridge creates a more durable bearing
interface and preserves both carbon body and bearings
Adjustable Cleat Tension
– Easy cleat tension adjustment at pedal back plate
Stainless Steel Top Place
– New design stainless top plate protects the carbon body from wear
– 248 grams
– September 2010