The RANS Rocket/VRex Rear Idler Kit is a serious upgrade to your stock system. With custom idler brackets and a Power Idler, you won't believe how much smoother and quieter your bike will be until you ride with this kit. Easy to install, easier to enjoy! Works well with the RANS Rocket/VRex Rear Idler Kit.
Note: On older bikes with the square seat channel, you may need to trim the excess length from the right side seat clamp L bracket. Since our idlers are larger for greater efficiency, this raises the chainline and may produce rubbing of the chain on the right side L bracket unless it is shortened. Rad-Loc seat clamp bikes are OK.
They work great. I only had one problem on the first front idler. On an evening ride in the dark. the front idler come unbolted at the joint bolt. Unusual for me.I ordered a new one, It is doing fine. I have your idlers on all my bikes without a problem. Volea Voyager, Challenge Fugin, Vision and the yellow Banana ,Trisled Roto Velo