I want to install a set on my F4i, any suggestions?

 

your two options are to buy the LP tap kit or buy weld-on tabs from pit-bull

I went with the weld-on because I didn't want to drill into my swingarm and the weld-ons are more stable on a stand

I bought my delrin spools and tabs from pit-bulls web site (actually pit-bull will weld them for free if you ship them your swingarm and pay for return shipping)

 

Powersstuntworx.com has them for the f4i and they look damn good

 

if you don't want to drill or weld, you can get some "axle sliders" that go inside the hollow front and rear axles. should fit any bike with a hollow axle. i have seen them on ebay too.