Aluminum fenders are much more durable and stylish than cheap plastic or quick-release fenders, and cover the bicycle and the rider much better. They fit into bikes that have 700C or 27" wheels and 30 mm tires. The fender set includes all parts for installing the fenders. Your frame must have braze-ons in dropouts for fender bolts. The front fender is installed to the fork crown either with a daruma bolt (to the front brake bolt) or with an L-bracket. Rear fender is installed with a wrap-around band if your frame does not have a threaded hole in the brake saddle.