PD-GR400, Deore Ultegra Di2 The Progetto X2 Air is

The Progetto X2 Air is a seamless seat pad that is soft against the skin but well-cushioned for long-distance comfort

Compatible with all standard saddle rails

revisiting the most distinctive design traits of the brand’s legacy and styles with vibrant prints and modern patterns

making it the ultimate solution for triathletes and cyclists

PVC covered handles for more comfort

PD-GR400, Deore Ultegra Di2 The Progetto X2 Air isFlat. Secure and stable grip for better bike control Center thickness: 16 mm 9 removable pins per side Trail riding platform shape feels secure underfoot Platform size: 101 x 96 mm Resin composite pedal body with bushing construction axle 8 mm hexagon wrench mount Weight: 394 g 139 g lighter than PD GR500 Best combination with SHIMANO GR series shoes