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@Rhodrich
Bit of a long shot, but I've just picked up a bike with a Stronglight 49D chainset, which I understand has the same PCD as a TA 5 pin chainset.
It's fixed gear, and is currently running a knee busting 54x18 gear (80 gear inches). I'd like to gear down, and whilst I can change the rear sprockets, the jump between them with the front ring that big is a bit of an issue. 54x19 is still too high, and 54x20 is a bit too low. I'm therefore on the lookout for something smaller which will give me my preferred 73-74 gear inches.
Does anyone have a 52 or 50T chainring they'd like to sell me, or something similar? I'd prefer track (1/8"), but if not, 3/32" will be fine.
Let me know what you've got.
Thanks.