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Post by midge on Apr 20, 2016 15:51:42 GMT
Getting 42 cassette on my 1x11 do I need a medium or long cage rear mech?? Waiting to order so quick response would be great
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Post by marsbarman on Apr 20, 2016 15:56:46 GMT
I've got a medium XT on my 42t, seems to shift fine.
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Post by midge on Apr 20, 2016 15:58:10 GMT
Thanks, time to order  ? |
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Post by marsbarman on Apr 20, 2016 16:01:21 GMT
Do it.
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Post by midge on Apr 20, 2016 16:12:32 GMT
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Post by roundie1981 on Apr 20, 2016 16:15:22 GMT
Medium on mine too
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Post by marsbarman on Apr 20, 2016 16:15:36 GMT
Cry.
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Post by marsbarman on Apr 20, 2016 16:15:49 GMT
A long will work though.
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Post by midge on Apr 20, 2016 16:29:47 GMT
Ordered the long. Ordered a zee crankset as well
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Post by midge on Apr 20, 2016 16:30:23 GMT
And thanks for the quick replies
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Post by Rlo80 on Apr 20, 2016 18:19:45 GMT
I would think it depends on the NW at the front!?
I'm running 32 at the front and only 40 at the back and the mechanic told me medium cage...bit if i was going 42T I would be better with long! So you did well!
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Post by kirky72 on Apr 20, 2016 19:07:52 GMT
Gonzalo your evans man told you wrong, medium. Is fine for 42 with 32/34 up front for sure most likely any single ring chain ring size anybody is likely to run as the front ring size doesn't have an effect on the calculation used to determine the rear mech. It's all to do with the spread of gears, so typically a medium cage is fine with any reasonable 1*10 but increasing the range of a cassette on a 2*10 or 3* 10 needs a long cage. Some of the guys that sell expander sprockets advise the cage length requirement for various set ups, such as this handy explanation.
Here are two examples:
1. For someone running a 1X system with a 32T front chainring and an 11-42T rear cassette:
(42-11)+(32-32)=31T capacity
2. For someone running a 2X system with 40/28 front chainrings and an 11-42T rear cassette:
(42-11)+(40-28)=43T capacity
Medium cage deraileurs can typically handle 37T (Shimano) 39T (SRAM) and long cage rear derailleurs can handle 43T (Shimano) 45T (SRAM).
Send a copy to your friend at Evans.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Apr 20, 2016 19:08:09 GMT
Not so quick.....but Eurobob is running a fecking ZEE shifter on his wide range Sunrace! I didn't think you could, but he is.
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Post by Rlo80 on Apr 20, 2016 19:20:29 GMT
To be fair John, he said you could run a 42T but it would put more strain on the mech and require more adjustments on the bolt...which I can understand it I'm honest when I see my mech when it is on the 40T.
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