upgrading

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mattgallagher
Posts: 4
Joined: Sat Nov 29, 2003 14:46 pm
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upgrading

Postby mattgallagher » Sun Mar 30, 2014 10:29 am

hi all i have this bike.
http://www.giant-bicycles.com/fr-fr/bik ... ifications.

i want to upgrade to ultegra 6700 with a double crank.

My questions are.
1. will i need a neww BB? or an adapter or will the cranks just slot in?
2. what rear mech will i need? as in cage length? i know from my mtb experience that when i did a similar sort of thing on my trail bike the med cage mech was at the limit to reach the big cog on the cassette.
3. looks like i will be going compact so what range cassette is advised? 11 to 23, 12 to 24 etc?

thanks in advance

Matty

Jon_1976
Posts: 648
Joined: Wed Jan 23, 2013 13:57 pm

Re: upgrading

Postby Jon_1976 » Sun Mar 30, 2014 14:20 pm

1. Chainset should be a straight swap (no need for a new BB)
2.IIRC, Shimano say the 6700 short cage rear maxes out at 28. I have no experience with bigger sizes.
3. Depends on the terrain and how strong/fit you are. 12-28 would be a good start imo.

mattgallagher
Posts: 4
Joined: Sat Nov 29, 2003 14:46 pm
Contact:

Re: upgrading

Postby mattgallagher » Sun Mar 30, 2014 15:21 pm

hi
good news on the chainset
mech ill look into that more before committing and french roads just near Geneva in the monts Jura region and not very yet so 12 to 28 sounds good to me.

cheers


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