For 29" Wheel DeFender™ M1 is compatible with all standard front forks including reverse arch designs, the unique quick release attachment system integrates the DeFender™ M1 seamlessly with the front of your bike. The XC11 is a lightweight removable rear fender providing exceptional mud/spray protection. Multiple pivots allow easy fender angle adjustment for a perfect fit while the quick release clamp adjusts to fit ø25.4 - ø34.9mm seatposts. Advanced high impact plastic is co-molded to a flexible trailing edge for resistance to impacts. Both fenders feature a highly polished underside to prevent mud buildup and aids in cleaning.ATTACHMENT (FRONT): QR fork attachment fits ø19.6 - ø26 mm & ø27.7 - ø35 mm steerer tubeATTACHMENT (REAR): Slip joint clamp fits ø25.4 - ø34.9 mm seatpostsADJUSTABLE: Multiple angles adjustable (XC11)MATERIAL: Two tone injected high impact resistant plasticADDED FEATURE: Highly polished undersideSIZE: 64x 15 x 8.5 cm / 25.2” x 5.9” x 3.3” (M1 27.5 & 29") / 67 x 10.2 x 7.5 cm / 26.4” x 4” x 3” (XC11 29")WEIGHT: 208 g / 7.32 oz (M1 27.5” & 29”) / 220 g / 7.74 oz (XC11 29”)