Pull straps when the area gets tough! The rear model is indispensable to be able to pull hard on the back of your bike, in complicated steps, & the front belt will allow you to help or hook your bike in a more comfortable & safe way. Rear model = DEC-653-x (435mm from center to center): compatible with all brands (Except Gas Gas 2021/2022) Article: S3 Hard Enduro Rear Strap