VeloChampion Rear Guard - Folding Road or MTB Mudguard Fender - Black This very simple but ultra-effective rear mud guard from VeloChampion is a must have accessory for any road or MTB cyclist. The minimalist but ingenious flat design turns into a curved rear mud guard once inserted into the rails of your saddle! There's no need for tools or brackets either. Extremely lightweight (20g) - you wont know it's there until you get to your destination with a dry back. Dimensions (total): 380mm x 80mm Fixes to the rails of your saddle without any tools or brackets - Fits 80% of saddles on the current market. Please note: Not compatible with BROOKS saddles The minimalist but ingenious flat design turns into a curved rear mud guard once inserted into the rails of your saddle! There&#039;s no need for tools or brackets either. Extremely lightweight (20g) - you wont know it&#039;s there until you get to your destination with a dry back. Dimensions (total): 380mm x 80mm Fixes to the rails of your saddle without any tools or brackets - Fits 80% of saddles on the current market. Please note: Not compatible with BROOKS saddles