According to the Q&A from 50500-03, it states all three sizes as:
50500-03 - about 4.75"
50131-95A - right inbetween 3.50" and 3.75"
50130-95A - about 4"
December 25, 2016
I Ride: 2011 FLTRU & 1990 FXSTS
How I Ride: Touring - With Passenger
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0http://answers.harley-davidson.com/answers/submit/6501/product/PA-07-5013195A/answer/4072476/undohelpfulness.djs?authsourcetype=__AUTHTYPE__&format=embeddedhtml&innerreturn=http%3A%2F%2Fanswers.harley-davidson.com%2Fanswers%2F6501%2Fproduct%2FPA-07-5013195A%2Fquestions.djs%3Fexpandanswer%3D4072476%26expandquestion%3D2551668%26format%3Dembeddedhtml%26scrolltotop%3Dtrue&return=__RETURN__&sessionparams=__BVSESSIONPARAMS__&submissionparams=__BVSUBMISSIONPARAMETERS__&submissionurl=__BVSUBMISSIONURL__&user=__USERID__