The TetraFender R1 & R2 Set from Topeak is perfect for most road bikes and are really easy to fit with their hook and loop straps. Adjustable front struts provide a closer fit to the tyre and excellent mud / spray protection. For the rear, a unique two-piece, dual tone design provides short or longer fender usage options for a precise fit with your bike. A highly polished underside helps prevent dirt build up and aids in cleaning. Included 3M reflective decals provide safety at night.Attachments: Seatstays with hook and loop straps Adjustment: Adjustable angle and fender length (rear) Material: Two tone injected high impact resistant plastic with engineering grade polymer / metal struts Compatibility: Disc brake compatible frames only Seatstays width within 55-85mm 700c wheel sizes with tyre width up to 25 - 32mm Compatible with all frame materials and finishes Added Feature: Short and long fender sizes 3M reflective decals Size: Front 41 x 21 x 11 cm / 16.1" x 8.3" x 4.3" Rear 63 x 27