Originally Posted by
georges1
Yes you can upgrade a taper square bb by a hollow tech II bottom bracket without any problem, I did this when I upgraded my old Merida which was fitted with old deore lx 21 speed biopace crank to an xt-780-t hollow tech II crank. Note my 1992 Merida was a 21speed bike originally,now it has 30 and I won 750 gr when upgrading the drive train. Yes, every modernbike is suitable for an upgrade from 9 to 10 speeds
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Georges
Hi Georges!
Thanks for your elaborate reply. Reassuring to know any square taper can be replaced by a HT II.
I have no doubt the XT set will be superior to the Deore, but it almost doubles the price. Coming from Acera/Altus/Alivio, a full Deore set should already be a huge step – and I have doubts spending so much on a new gearset.
Regarding the question about the chain case mount: will it also fit with a HT II ring?
Thanks!