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Shimano/Gevenalle Options...?

Old 12-30-18, 04:40 PM
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09box
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Shimano/Gevenalle Options...?

I am running a 9 speed Shimano road derailleur w/9 speed 11-34 cassette and 10 speed Gevenalle shifters. I am looking to potentially upgrade to 10 speed cassette. I've read to get capacity to run larger cassette that I would need a Shimano 9 speed mtb derailleur. Is it possible to run a 10 speed cassette (same 11-34 but 10 speed and gaining extra gear) on current 9 speed road derailleur without swapping parts?
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Old 12-30-18, 04:55 PM
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Ask directly yet? https://www.gevenalle.com/contact/ they also have a Shimano compatible modified microshift RD. ..

https://www.gevenalle.com/product/burd-rear-derailleur/
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Old 12-30-18, 05:40 PM
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I have contacted them via email and waiting to hear back. Their BURD derailleur only has it looks like 28 tooth max for double chairing and 32 tooth max for single.
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Old 12-30-18, 06:17 PM
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Yea, their target market is Cyclocross ,There, your low gear is 2 feet, ... you get off and shoulder the bike and run ..

Cross is big in Portland in the winter..

you might need an MTB RD..
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Old 12-30-18, 08:30 PM
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If you are running a 34 big cog now, then going from 9 speed to 10 speed changes nothing interms of clearance.
Kind of surprised that you can get any road DA RD to run a 34 cog, but hey, more power to you.
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Old 12-30-18, 09:06 PM
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It is a mid cage derailleur and the max sprocket that it can handle is a 34 so that's what I run. I was surprised myself. Usually you see a road derailleur with a 30 or 32 max..
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Old 12-30-18, 10:17 PM
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If you want to run a wider range cassette, you could try one of these.....

https://www.wolftoothcomponents.com/products/roadlink

Last edited by cobba; 12-30-18 at 10:20 PM.
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Old 12-31-18, 08:10 AM
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If your current rear derailleur will work with a 9-speed 11x34 cassette it will work equally well with a 10-speed 11x34 cassette. You do not need to change it. I would like to know how your 10-speed shifters manage to shift a 9-speed cassette. Are you using it in friction mode?
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Old 12-31-18, 01:09 PM
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They are 10 speed shifters and I run them in index mode. There is just an extra click all the way to the right. I've run them in friction once or twice but 99.9% of the time is in index mode.
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Old 12-31-18, 01:15 PM
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Originally Posted by 09box View Post
They are 10 speed shifters and I run them in index mode. There is just an extra click all the way to the right. I've run them in friction once or twice but 99.9% of the time is in index mode.
OK, but 9-speed and 10-speed cog spacings aren't the same so I'm surprised it shifts acceptably. There should be a significant mis-match at one end of the cassette or both.
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Old 12-31-18, 03:02 PM
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It all seems to work okay for me so ill run with it.
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Old 12-31-18, 06:26 PM
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Maybe the way the Shimano center-on top pulley moves sideways will make up for minor differences.. ?
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Old 01-09-19, 05:36 PM
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Somebody offered me a Shimano C201 mtb derailleur new in the box (looks like its an 8 speed). Looks like a long cage with a max of 34T according to specs. Is it worth maybe picking this up plus a road link? I've read a couple things that a 10 speed cassette can be used with an 8 speed derailleur..
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Old 01-09-19, 08:27 PM
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Originally Posted by 09box View Post
Somebody offered me a Shimano C201 mtb derailleur new in the box (looks like its an 8 speed). Looks like a long cage with a max of 34T according to specs. Is it worth maybe picking this up plus a road link? I've read a couple things that a 10 speed cassette can be used with an 8 speed derailleur..
As Hillrider mentioned in post #8 you don't need another derailleur if you're staying with a 34t max cog. If it works fine with your 9 sp-34t it will work fine with a 10 sp cassette.
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