The topeak defender fxrx mudguards are the perfect complement to any mountain bike their special design allows the rear mudguard to be adjusted to fit both hardtails and full suspension bikes the qr seatpost attachment and clip off front mount means you can install and remove these fenders in seconds topeak defender fxrx mudguard features wide profile for maximum coverage rear is fully adjustable in height and angle cool motocross profile looks good on both hardtail and full