My latest build is a 72 V 3000 W rear hub motor and controller. The axles on this monster are 16 mm. I can't seem to find any 16 mm torque arms anywhere on line. Are any of you guys that are running a high powered system fabricating you're own 16mm torque arms? If you bought 16mm torque arms, can you tell me where from?
16mm torque arms
- Thread starter Joecool
- Start date
markz
100 TW
Make them out of scrap steel with an angle grinder.
Or, grind/file an extra 1mm from each side of GrinTechs 14mm T.A.'s to get your 16m.m.
http://www.ebikes.ca/shop/electric-bicycle-parts/torque-arms.html
Below are DIY T.A.'s on my ebike.
View attachment 1
Using a wrench as a torque arm, from Amberwolf's build.
https://endless-sphere.com/forums/viewtopic.php?f=2&t=67833&p=1406269&hilit=wrench+torque+arm#p1402291
Or, grind/file an extra 1mm from each side of GrinTechs 14mm T.A.'s to get your 16m.m.
http://www.ebikes.ca/shop/electric-bicycle-parts/torque-arms.html
Below are DIY T.A.'s on my ebike.
View attachment 1
Using a wrench as a torque arm, from Amberwolf's build.
https://endless-sphere.com/forums/viewtopic.php?f=2&t=67833&p=1406269&hilit=wrench+torque+arm#p1402291
wturber
1 MW
If you are moderately handy, you can probably make your own using a few basic power tools (drill, grinder) and hand tools (files, hand saws, sandpaper, tap & die). I suggest you consider making two torque arms and using 1/4 inch steel as a minimum. Mild steel is fairly easy to work with and with two arms should be plenty strong. If you make your own, take your time and make a good clean fit.
Here's a long thread with lots of examples.
https://endless-sphere.com/forums/viewtopic.php?f=2&t=26444
Here's a long thread with lots of examples.
https://endless-sphere.com/forums/viewtopic.php?f=2&t=26444
markz
100 TW
wturber said:
Looks and appearance are important to some people.
Thats a great point wturber: A snug fit on the axle flats.
wturber
1 MW
markz said:
Part of fit and finish is eliminating stress risers. Also, things like a nice part clean-up (sanding) and paint can make it easier to spot damage and evidence of fatigue later on.
MadRhino
100 GW
Big motors, that will ride high power and speed, deserves better than a torque arm. Pinch dropouts, or through axle torque plates, custom dropout plates... Both sides of course.
Take the time to make them thick, neat, practical, and never worry about them.
Take the time to make them thick, neat, practical, and never worry about them.
