I think Devol needs to update their catalog. I've got the rear disk guard that mounts by running the rear axle through it and using their supplied dust cap spacer. It works OK but I think the spacer is kinda skimpy and a little bit short to boot. I had to fit a washer between the spacer and the guard to get the clearence close to the orininal spacer. That is, disk guard, their spacer, and waher together equal the thickness of the OEM dust cap spacer. Kinda like an FMF pipe, you can make it fit but why should it be that way?