Outfit your bike with the Blackburn(R) Splashboard Rear Fender. The Splashboard is lightweight yet sturdy, offering protection from splashes from mud and water when you are out biking on the trails. It easily mounts on seat posts ranging from sizes 22.2mm to 34.9mm and features a rubber frame that does not scratch your bike's frame finish. FEATURES: Adjustable rear bike fender Full width size offers protection from splashes of mud and water Mounts to seat post with clamp Fits 22.2mm-34.9mm seat posts Requires no tools Durable yet lightweight Rubber frame does not scratch frame finish