PDW Sodapop Fenders are made from 97% post-consumer recycled beverage bottles. They keep your backside dry in the rain and pop off your bike easily when the sun comes out. Thanks to clever hardware they fit most city and mountain bikes that have a hole in the fork crown. Features: Made from 100% post-consumer recycled beverage bottles Available in 'city bike' (48mm) or 'mountain bike' (64mm) width Pop off easily when the sun comes out Sold as a front and rear set Specifications: City width: 48 mm at tail Mountain width: 64 mm at tail Installation manual (PDF) Lifetime PDWarranty