GR400 are grippy flat pedals with a trail riding platform shape that feels stable and secure underfoot. Experience even better bike control by pairing with SHIMANO GR series shoes. Features & Benefits 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