Author |
Message |
S1owner
| Posted on Sunday, August 11, 2013 - 12:37 pm: |
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Has any one mounted one? ( Other then Foximus). Something like this but with a heavier mount
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Greg_cifu
| Posted on Sunday, August 11, 2013 - 01:12 pm: |
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You won't find anything like that in the aftermarket because it's patented. No clue how they issued a patent on a tension roller but, evidently, when applied to a motorcycle as a stationary tensioning device, it's patented...by Erik Buell. I think the patent office has lost their marbles. |
S1owner
| Posted on Sunday, August 11, 2013 - 01:17 pm: |
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Well i have found that one and many others forsale so they are out there. |
Edv
| Posted on Sunday, August 11, 2013 - 01:42 pm: |
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The roller needs to be mounted as Buell did it on the XB models directly below the swing arm pivot. I did this years ago on a BSA B50 MX when I long traveled the suspension so I could control the chain slack and it works well if mounted correctly the one in the photo above will not last or control the chain or belt slack for long term |
S1owner
| Posted on Sunday, August 11, 2013 - 02:01 pm: |
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When doing this is the pulley stationary or is it like a belt tensioner on a chevy? I agree that one would not last long. (Message edited by S1owner on August 11, 2013) |
Edv
| Posted on Sunday, August 11, 2013 - 03:39 pm: |
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The pulley is stationary when positioned correctly so the tension is constant |
Dave_02_1200
| Posted on Sunday, August 11, 2013 - 09:21 pm: |
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ATK made a gizmo in the 1970s that mounted two sprockets on the swingarm, above and below the swingarm pivot, that allowed the chain to keep constant tension regardless of the swingarm angle. My friend had one on his roadracer and it worked well. The chain was adjusted for no slack and, as a result, shifts were crisp and there was almost no driveline lash. |
Ratbuell
| Posted on Sunday, August 11, 2013 - 10:58 pm: |
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I believe EB patented the XB/1125 tensioner by way of the mounting position/math involved. Theory is, no matter where the swingarm is in its travel, tension is unchanged on the belt (chain) because of where it is and how it lines up with the swingarm pivot. "This" design is what was patented, I believe. "A" tensioner is free game. |
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