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Old 03-31-09, 08:37 AM   #1
jjciiijs
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Rolf cassette wear checker

I have one. I do not have the instructions and can't find the unit on the web to copy off instructions. I would like to know how to use it properly.

It seems to me that I can make any cassette new or old be 'sticky' and hold the chain. I was working under the impression that the tool was to check if a cassette was worn and 'held' the chain to much, not allowing it to release to the next gear smoothly.

I need to know how much pressure to hold the gauge/tool to the cassette with.
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Old 03-31-09, 09:21 AM   #2
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Originally Posted by jjciiijs View Post
I have one. I do not have the instructions and can't find the unit on the web to copy off instructions. I would like to know how to use it properly.

It seems to me that I can make any cassette new or old be 'sticky' and hold the chain. I was working under the impression that the tool was to check if a cassette was worn and 'held' the chain to much, not allowing it to release to the next gear smoothly.

I need to know how much pressure to hold the gauge/tool to the cassette with.
I think the reason you're not finding anything on line is that you have the name wrong. Try googling Rohloff cog wear indicator and see what comes up. FWIW, I have one of these, and I have not found it to be terribly reliable.
http://www.rohloff.de/en/products/hg_ig_check/
Dan
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Old 03-31-09, 10:39 AM   #3
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The only totally reliable check is to install a new chain and see if the chain skips on any of the cogs under heavy pedaling pressure. I'd never toss a cassette based on the reading from any tool. I only one cogs skips, you may find that the worn cog is useable with another chain, having only a few hundred miles of use - still good enough for a commuter or bad weather bike.
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Old 03-31-09, 10:43 AM   #4
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Originally Posted by Dan Burkhart View Post
I think the reason you're not finding anything on line is that you have the name wrong. Try googling Rohloff cog wear indicator and see what comes up. FWIW, I have one of these, and I have not found it to be terribly reliable.
http://www.rohloff.de/en/products/hg_ig_check/
Dan
Thanks. That solved that. Now all I need to do is practice on old cassettes vs new ones to get a good feel for the difference
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Old 03-31-09, 10:46 AM   #5
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Originally Posted by DaveSSS View Post
The only totally reliable check is to install a new chain and see if the chain skips on any of the cogs under heavy pedaling pressure. I'd never toss a cassette based on the reading from any tool. I only one cogs skips, you may find that the worn cog is useable with another chain, having only a few hundred miles of use - still good enough for a commuter or bad weather bike.
Well,
All of this stemmed from trying to adjust the changer in the rear and I kept getting an issue with skipping in the middle gears. I would fix the middle and then have problems else where.

I will now start a tread on chains.
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Old 03-31-09, 10:59 AM   #6
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check your rear dérailleur's hanger , it may be bent, or your cable /housing need replacing due to age.
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Old 03-31-09, 11:09 AM   #7
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Well,
All of this stemmed from trying to adjust the changer in the rear and I kept getting an issue with skipping in the middle gears. I would fix the middle and then have problems else where.

I will now start a tread on chains.
Worn cogs are not the reason for poor shifting. If the chain skips over the top of the teeth under a heavy load, the caogs are worn out, but shifting to them should still be fine. The only times I had chain skip, I didn't have any shifting problem, but the first hill revealed worn out 19-21T cogs, when I stood to pedal.
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