Author Topic: chainring/crank help! (Read 780 times)

djruffkut · « **on:** November 16, 2009, 11:32 PM »

i need to run a profile chainring (which for some reason is 26mm?) on a hollowbite (22mm) where can i find an adapter? i've looked everywhere!!!!!!

HEYWOOD BMX · « **Reply #1 on:** November 16, 2009, 11:55 PM »

Just measured my Profile Imperial and Vernier caliper says 22.2mm.Is your measurement accurate? Profile sprockets should just fit onto a Primo axle without a tophat washer.

djruffkut · « **Reply #2 on:** November 17, 2009, 12:16 AM »

yeah the measurement is accurate, i think it had been bored out for another crank many years ago but i don't remember!

HEYWOOD BMX · « **Reply #3 on:** November 17, 2009, 04:08 PM »

Sounds like it has been bored out.Biggest tophat I can find anywhere is 23.8mm.

djruffkut · « **Reply #4 on:** November 17, 2009, 06:26 PM »

think i'm gonna have to get one made or just fuk off the chainring all together! can you still buy profile imperial billet rings? thanks for your help

HEYWOOD BMX · « **Reply #5 on:** November 17, 2009, 09:16 PM »

Not seen new Billet rings for yonks,E-gay or here are your best bets.Try this place,they might have a tophat that fits as they did a crank with a 25mm axle (Ultimate Hardware Sherman) a few years back.

http://www.bmxcity.co.uk/