WTD - Shimano Medium Cage derailleur

by plowsie   September 18, 2013  

In need of something that will cope with larger sprocket, my short cage is too small.

Ideally needs to be a 105 but would be happy with Tiagra.

Only other problem is I need it by Sunday morning.

2 user comments

Oldest firstNewest firstBest rated

Sorted. Mods can delete this now if need be.


posted by plowsie [14 posts]
18th September 2013 - 9:52

like this
Like (1)

For the benefit of anyone who lands here from google:

the 105 part you would have needed is the RD-5701-GS. The older RD-5700-GS increases the max chain capacity but not the max cog size (it's 30t on the older model, 32t on the newer one). Shimano don't sell a 105 10s road cassette with a 32t - you could go with an XT part, I used an SRAM PG1070. To get this setup to work, you need to turn the B screw on the derailleur most of the way in so that the der runs clear of the cogs.

(from having downgeared my bike for a loaded tour of the Alps)

posted by bazzargh [144 posts]
18th September 2013 - 10:53

like this
Like (3)