These fit most 2000-2007 Harley Davidson models (07 Softail need 2008-2022 size)
Springer front ends have their own size available see listings.
Machined from 6061 Aulinum and then professionally chrome plated.
Each has 2 set screws that require a hex wrench.
BFD has been making these since 2015, the original badass spikes !