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Post by mark69 on Feb 24, 2021 23:18:55 GMT 1
Hi, need to pick your brains again, i'm fitting a tzr rear wheel in a standard lc swingarm, i want to mount the caliper at the bottom, like the 3ma (i think) but cant seem to find a tzr one so made my own mount and used the standard torque arm. Question is does the caliper mount need to rotate when the wheel spindle is tight? like a drum brake would? Tia.
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Post by JonW on Feb 25, 2021 0:38:06 GMT 1
The caliper/mount is usually fixed solid when the axle is done up.
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Post by joshready on Feb 25, 2021 11:42:09 GMT 1
I've got a tzr wheel in the stock arm. It's running a 88 gsxr750 caliper and bracket, and as Jonw says.
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Post by mark69 on Feb 25, 2021 12:33:14 GMT 1
So why does the torque arm just float? Does it need to move with suspension travel? If so the calliper will need to move?
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Post by Tobyjugs on Feb 25, 2021 13:00:54 GMT 1
It does not float think of it as a triangle fixed to the bottom of your swing arm. The only time it needs to be loose is when you change the wheel base when adjusting your chain. Because the spindle is loose the angle of the calliper bracket will automatically adjust it's self. You might have to lossen the ringed area depending on how you have made it.  |
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Post by Tobyjugs on Feb 25, 2021 13:05:12 GMT 1
Oops just re read your question. The arm floats to allow automatic adjustment of the caliper bracket when adjusting the chain. In the picture of my torque arm you can see its very simple made and needs to be loosend if the wheelbase is altered.
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Post by rich on Feb 25, 2021 13:05:21 GMT 1
If the torque arm is bolted to the swingarm, then it will all move together so the caliper hanger will be fixed. If the torque arm is anchored to the frame, then the caliper hanger will need to float on a bearing as the suspension moves up and down. Make sure you do it the correct way, if you get it wrong things could get very nasty!
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Post by mark69 on Feb 25, 2021 14:33:46 GMT 1
If the torque arm is bolted to the swingarm, then it will all move together so the caliper hanger will be fixed. If the torque arm is anchored to the frame, then the caliper hanger will need to float on a bearing as the suspension moves up and down. Make sure you do it the correct way, if you get it wrong things could get very nasty! Ah, that explains why I’ve seen a carrier with a bearing. Thanks for all your help, it looks the same as the pic just arms longer. |
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