Thorn Cycles Forum
Community => Rohloff Internal Hub Gears => Topic started by: Thomas777 on February 09, 2017, 03:52:42 PM
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I thought I sorted this out before but cannot seem to find the info.
What speed chain should I consider for my new set up?
Thanks!
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If it is a rohloff hub a single speed chain for an IGH should do .
Bob
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Like bobs said.
Any 8 speed 1/2 X 3/32 chain is also acceptable.
https://www.rohloff.de/en/service/faqs/index.html#c9537
REI will have a good selection of SRAM or KMC chains.
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I have just fitted a KMCX1 to my Raven.
The previous one did 6,000+ miles.
Turned once. Chainglider on all the time.
I used Wiggle £23.38
I also bought a KMCX1 Ept. Extra protection apparently.
£31.45.
I'll keep that one for next time.
I made the mistake of cutting it too short so think and measure carefully or you'll have to add a link.
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I've used the KMC 8.93, Tom. They are inexpensive (about $15 in Canada) and seem to work just fine. There are two grades -- the nickel is slightly more expensive, and you need to ensure that the Quick-links match the chain. (The nickel is shiny/shiny.)
SRAM make a range of 8-spd chains. I have an 850 at home, and will probably fit that in the spring.
Cheers
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So as I continue my education on Rohloffs another question comes to mind. Do you get more mileage while using a IGH vs. Derailleur?
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Do you get more mileage while using a IGH vs. Derailleur?
Yes! Surely! The primary reasons are twofold:
1) The chain does not have to bend sideways to accommodate a range of gears. This is true at both ends -- single chainring, single sprocket/cog. The chain incurs less wear by running in a straight line.
2) There are (for Rohloff installations using eccentric bottom brackets or sliding or ramped dropouts) no small tension pulleys for the chain to wrap around. This removes a major wear and friction point. Of course, for Rohloff installations using a derailleur-like chain tensioner, there is no difference in this regard.
Because the chain just runs in a straight line without lateral flexing, it does wear much longer than in a derailleur application. Also because the chain does not need to move laterally, it is possible to fit a "floating" chain case (i.e. Hebie Chainglider) to fully enclose the chain and protect it from grit and water exposure and lubrication loss. Of course, this will only work with some chainring/sprocket combinations because Hebie only makes the Chainglider to fit specific applications.
Best,
Dan.
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Thanks for your help! Just built the front wheel for my wife's touring bike yesterday. Her bike is going to get 1 more coat of clearcoat then the build can proceed.