Transform your bike into a commuting machine with a Zefal Swan Rear 45mm fender. This attaches onto your seatpost with no tools in about 30 seconds and keeps the water and road grime off your back-get there clean and dry. Features: Designed for 700c bikes Angle adjustment for any configuration Made of ultra-resistant black polymer resin Mounts onto the seat post quickly with zero tools 45mm blade width is great for wider hybrid tires too