Road 10s cassette with low gears

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basilic
Posts: 1028
Joined: Wed Jan 05, 2011 8:05 am
Location: Geneva, Switzerland

by basilic

FYI
my wife had a 50/34 crankset and 11/28 cassette (10s ultegra), but complained in the mountains of not having short enough gears. Also she is never in 50/11-12. So I hacked a cassette out of a 13-25 (junior type ultegra) and 11-32 (tiagra) to obtain this:
13-14-15-16-18-20-22-25-28-32
The cassettes are originally pinned in one block (3 pins), but I sawed the pins easily with a hand saw, pulled them out.
Surprisingly the ultegra 6700 RD handles it just fine (on a 52 trek domane frame).

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Marin
Posts: 4035
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

Cool mod!

My 6800 mid-cage RD could shift a 36t cog, so I'm not very surprised the 6700 can do 32.

BikeAnon
Posts: 399
Joined: Sun Mar 02, 2014 6:36 pm
Location: NY USA

by BikeAnon

SRAM makes 10 speed cassettes that get this done: http://www.competitivecyclist.com/sram- ... d-cassette

You can get:
11-32 includes: 11,12,13,15,17,19,22,25,28,32
11-36 includes: 11,13,15,17,19,22,25,28,32,36
12-32 includes: 12,13,14,15,17,19,22,25,28,32
12-36 includes: 12,13,15,17,19,22,25,28,32,36

For Shimano, I had to go to a MTB derailleur to fit the 11-36.

My Ultegra 6800 GS (mid) will not handle 36 (Specialized Roubaix frame). 32 is no problem. In fact it's the reason I own the GS model.

basilic, did you happen to weigh your completed cassette?

mtbstuff
Posts: 34
Joined: Wed Jan 05, 2011 9:35 pm

by mtbstuff

XT 11-32 10 speed cassettes are cheap and ready to go.

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LouisN
Posts: 3510
Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

Great mod basilic !

i'm planning on getting a Specialites TA Podium cassette, in 11-32.
Curious to know how much it'll weight.

Louis :)

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