Hi John,
I carefully cut mine off and sanded the stud areas smooth and used bondo.
But before cutting them off i drilled 1m pilot hole first, then cut the FG studs off.
The alu studds i got this time last year when i started my fett project.
The threads are about 3mm dia and drilled a 4m dia hole for the threads as this will help to get the collar on and off more easy when suiting up.
Ill do some blueprints and get russrep to get a quote for making them if you like.
cheers
Neil
uk-scout
TB7290
www.uk-scout.co.uk
ukbikerscout@hotmail.com