Bromptonaut
Rohan Man
- Location
- Bugbrooke UK
My Brompton is a 2009 M6R. It still has the original standard transmission so presumably 50T chainwheel and 13/16 rear sprockets. They and the chain, although still just about in 'mesh', are well worn. I've enough experience to know I need to replace the lot.
As it's the old 'fixed' chainwheel it looks as though I'll have to upgrade to the new spider version QCRANKSET-SPI-50.
Do I have to replace the Bottom Bracket as well?
If so, and it would probably be good practice anyway, is QBBCART-119-JIS the right part?
100 link chain too.
Looks like around £120 altogether.
Would appreciate confirmation that the assumptions above are correct and any other observations from those who've been there and done that.
Thanks in anticipation....
As it's the old 'fixed' chainwheel it looks as though I'll have to upgrade to the new spider version QCRANKSET-SPI-50.
Do I have to replace the Bottom Bracket as well?
If so, and it would probably be good practice anyway, is QBBCART-119-JIS the right part?
100 link chain too.
Looks like around £120 altogether.
Would appreciate confirmation that the assumptions above are correct and any other observations from those who've been there and done that.
Thanks in anticipation....