Hello! This may be a dumb question, but I need to ask it so I can save a few bucks.
I have found a 7800 53t b type chainring deal (64€), but 39t (29€) is out of stock, but there is a 7900 39t b type chainring (also 29€) in stock.
Are they compatible??
Thanks very much.
P.D. In other shops I can get the 39t for 3x-50 + shipping.
7800 7900 chainring compatibility
Moderator: robbosmans
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