shimano 105 5700 cassette compatibility

MattHB

Proud Daddy
elo all, just bought a lovely CAADX 5, but would like to swap the rear cassette out for a 12 - 30, instead of the 11 - 28 thats on it now. Im going to be throwing it through some hills woods and would like a grinder and as a 36 compact its a bit high geared.

shimano say that the 105 rear mech is only compatible upto 28T, so my question is will the current 5700 work ok? or do I need to put a tiagra mech on it?

cheers in advance.
 

rb58

Enigma
Location
Bexley, Kent
I sometimes run a 12-30 on my Ultegra 6700 and it works fine.
 
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