If it's the Enfield pillon seat for the C5, it's super easy to mount. Loosen the two upper shock bolts and slide it on. Once it's in place there's a long bolt & nut that goes in under the seat. Tighten that & the two upper shock bolts and your done. I have one for mine that I put on whenever my wife wanted to go for a ride, it's a 5-10 minute job. The only thing I would add, if your worried you might scratch the rear fender when installing or removing the seat (with the seats all metal frame work), cover your fender with a thick towel before hand.