Bill Sornson said:bicycle_disciple said:Hello RBT.
Can a couple of tech people help point out an approximate cost figure
for a full drivetrain componentry upgrade, in my case, from Shimano
Sora (sketchy and dull) to 105 (a true serious level race breed) for
my old Specialized Allez Triple lying in the garage. Those who have
upgraded fully to 105 before can relate with my situation and advise
me best. I don't know if price varies among combinations, but what I
would mainly prefer is a triple chainring, and a 12-23 rear
freewheel. Also, anything to watch out for, to get the best 105
experience? 😉 I couldn't possibly combine Sora and 105, could I?
How many speeds is your "old" Allez? Of course you can combine (mix &
match) Sora & 105, as long as the drivetrains are compatible.
For not much more than buying a complete 105 group, you could probably find
a complete 105-level bike that would also provide you with new wheels, bar,
post, stem, etc.
Visit an LBS or six and keep your plastic handy! <eg>
Boy, that speaks volumes about today's bike biz...framesets are
disposable, groups are most important...sorry, that's all backwards.
If you like the frame, it fits well, you like to ride it but ya want
'10s' for some reason...all you need are shifters, cogset and chain, as
long as the ders aren't worn out...Keep the crank, FD, RD, all will
work fine and dandy with 105 10s STI levers. Change the crank if you
are looking for a gearing change not possible on the present crank, no
other reason to 'upgrade'.