Grin Tech's Torque Arm V5 - Installation Video
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- čas přidán 30. 11. 2023
- The Torque Arm V5 is a universal design from Grin that secures both 12mm and 14mm ebike axles against spinout, and works with both front and rear dropouts that have fender eyelets.
This design evolution came about from extensive lab testing and is many times superior to our V2 eyelet torque arms. The splined insert allows for versatile installation angles and is made of a specially hardened 17-4 Stainless Steel alloy that provides over double the spinout strength of regular steels. Where other torque arms smear apart, this V5 arm holds tight.
Here is Grin's general torque arm info page:
ebikes.ca/product-info/grin-p...
Here is the .pdf user manual:
ebikes.ca/amfile/file/downloa...
Here is where you can buy them from Grin directly:
ebikes.ca/shop/electric-bicyc...
And we also have an amazon listing for those who like to deal with the devil:
www.amazon.com/Grin-Technolog... - Věda a technologie
Just installed these with my FH212 motor. Everything is awesome :)
This looks amazingly well designed/engineered.
Looks good!
A lot better and reilable than those with a hose clamp.
I wish there was an easy way to purchase grin parts from the uk without having to pay crazy import prices or customs charges
We used to have quite a few dealers in the UK but it seems that there is no longer much of a vibrant DIY or retrofit ebike scene there anymore. If you are aware of a well reputed shop that specializes in conversion systems then please let us know! Otherwise, you can also start your own business and become a reseller to fill that void
Would you recommend that type of torque arm for a a grin all axle?The original one for the all axle is not that handy compared to this one!
I've always used Nord Washers along with a Torque Arm. The belt and braces approach
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Even a standard Nyloc helps enormously if you have a system with regen. But if you don't have regen, then there isn't really back and forth axle torque so you don't have this natural tendency for things to loosen.
@@GrinTechnologies What about blue loctite? Any experience with that? Or even stronger thread lockers?
@@difflocktwoI personally have tried nylocks and thread locker both, nylocks work better, and you definitely DO NOT want to use nylocks and thread locker as it will eat away at the nylon in the nut. If you're using a thread locker, use a standard nut. Also expect it to take a lot of torque to remove either way, which may matter for roadside repairs!
Cool...should make a plastic "beauty" cap that fits over it and hides it a bit!
Its sooo much better than other torque arms.
This torque arm is designed with love. It makes me feel much more safe than the hose clamp nonsense.
I am wondering if it is also compatible with Brompton?
No the brompton forks don't have threaded eyelets, and they are sized for just an 8mm axle slot, not 10mm as is the normal bicycle standard. So you need a motor with a much smaller diameter axle
Hey I had this idea: build a bike with 2 hub motors: one in the front geared / wound for speed, and one in the rear geared / wound for torque. Add a controller that would send the right amount of current to each motor, according to particular situations, ie, flat, downhill, or climbing. Been done before? Can I get a patent?
Can't run two motors on one controller. It has been done before on a bench test but it's nowhere near optimal especially with different KV motors. They would be fighting each other the whole time. Each motor needs its own controller.
Not quite clear if you are just joke trolling or serious here :-) . But if the latter case this topic (dual motor drive optimzations) I discussed in this video here czcams.com/video/Ub4EP2_mAds/video.html And indeed there is no point really in having motors with two different KV's, unless you are seriously limited by a phase current limit of a given motor controller that you have to use.
Nice idea and try to support a Canadian company, but the reliability of their system is terrible. The wiring harness is poorly designed and built. Inevitably the connectors and wiring will short out and become buggy and unreliable.
It always happens at the worst time too. 🤪
You guys really need to figure this out and fix it. I'd never recommend a grin kit and suggest a ready to roll ebike just to save the headaches.
Justin, I like you and would like to work with you. May I email you?
I was a pioneer of ebikes, and I've had many years of thoughts since then. I'm developing something and I would like you as my business partner. Would you consider hiring me at Grin Technologies? I need a job that pays me to be creative mechanically.
Thank you!