Originally Posted by
CEBEP
Can Zee (and Saint?) be used with double chainring? I have 10s 11-32t cassette and 53/39t chainring.
I have a 20" wheel with the Shimano RD-4700-GS which has a 41T capacity. I use a 12-34T cassette with custom cogs and 24/44 double chainrings. Total chain length is 42T. So small-small will drag on the pulleys, so I never use 9th and 10th on the small chainring. This gives me a 519.4% range, around 14.0-72.6". The lower pulley goes slightly past the edge of the rim, but I have 2.00-2.15" tires, so it still has some clearance to the ground, but the chain gets really dirty.