AXLE SPIKES MADE OF POLISHED ALUMINUM These spikes are made for front axles only -- we can't guarantee that they will fit the rear axles. This set will fit any stock Harley Davidson motorcycle front end- except for sportster models. Please make sure that you measure your axles before you purchase these spikes Please take note of the axle dim sizes provided... Right ID 1.130〃 -- Left ID .874〃 Shim may be Required for FLH/ Roadking model Front ends-Right ID 1.130〃 -- Left ID .874〃 Shim sleeve makes them equal on both sides and is provided on all orders shipped. It seems that some of the 2007-2008 Harley Davidson motorcycle models have a different size axle and may not fit or will require modification in order to fit correctly. We don't have the specs for the newer models yet so if you have a newer model please make sure that the dimensions are correct for you bike! We cannot accept return