So I took the Brompton to my mate's shop yesterday. Chased and faced the BB and borrowed his big man-sized files to reduce the tabs even further. Problem is, the clearance I gained by filing was lost to the facing, so there's a bit of contact again. His suggestion was to stick a shim on the driveside.
I may well do that, but I said I'd give it a try as it is, see how much of a ballache it'll be.
I've only had the quick ride to the station thus far, but it feels nice. Immediately noticeable is the reduced q-factor. Not sure how much by, but it feels like my legs are tracking a bit straighter. It'd be a shame to ruin that by sticking a spacer in between BB and shell...
Also, it seemed to feel a bit stiffer but it's hard to say with only one little out of the saddle bit so far.
Oh and of course it looks cooler, which is the main thing 🤗
I'm using the standard 130BCD Brompton ring, 54t I believe.
I was asking on here about Campag cranks but getting hold of 3/32 single speed rings without ramps and pins in 54t (or thereabouts) seemed difficult enough in 130 or 110 bcd, never mind 135.
So I took the Brompton to my mate's shop yesterday. Chased and faced the BB and borrowed his big man-sized files to reduce the tabs even further. Problem is, the clearance I gained by filing was lost to the facing, so there's a bit of contact again. His suggestion was to stick a shim on the driveside.
I may well do that, but I said I'd give it a try as it is, see how much of a ballache it'll be.
I've only had the quick ride to the station thus far, but it feels nice. Immediately noticeable is the reduced q-factor. Not sure how much by, but it feels like my legs are tracking a bit straighter. It'd be a shame to ruin that by sticking a spacer in between BB and shell...
Also, it seemed to feel a bit stiffer but it's hard to say with only one little out of the saddle bit so far.
Oh and of course it looks cooler, which is the main thing 🤗