Hi All,

I saw a thread on here some time ago on the subject of torque arms that stop damage resulting from the high torque produced by monster motors.

Can anyone point me in the right direction to buy some please?

CycleZee do an excellent torque plate set which a number of members use. Listed under Parts and Accessories.

CycleZee do an excellent torque plate set which a number of members use. Listed under Parts and Accessories.

 

Thanks for that. Do you have any pictures of that. The part I previously saw was more of an arm than a plate.

Cheers,

The ready-made torque arms come in two sizes: 14mm x 10mm and 12mm x 10mm. Make sure that you get the right size for uour motor axle size. Bafang and Ananda (Cute) motors normally have 12mm axles, Ezee and most american motors tend to have 14mm.

 

BMSbattery also do some nice ones, or you can weld your own arm to the anti-rotation washers that come with the motor.

EBike Torque Arm

 

Torque arms are not just necessary for "monster motors". They're advisable for any front motor. Often rear motors don't sit deep enough in the drop-outs, which also makes them necessary.

The ready-made torque arms come in two sizes: 14mm x 10mm and 12mm x 10mm. Make sure that you get the right size for uour motor axle size. Bafang and Ananda (Cute) motors normally have 12mm axles, Ezee and most american motors tend to have 14mm.

 

BMSbattery also do some nice ones, or you can weld your own arm to the anti-rotation washers that come with the motor.

EBike Torque Arm

 

Torque arms are not just necessary for "monster motors". They're advisable for any front motor. Often rear motors don't sit deep enough in the drop-outs, which also makes them necessary.

 

Thanks for that. It's for a customer with a 1000 Watt Golden Motor on the rear wheel. He's provided a Claud Butler Stoneriver bike to fit it to. I'll measure it up, but I guess It'll be 14mm from what you say unless Canada have a different type.

Cheers,

Hi

electriccyclecentre

 

Give me a call I can help

 

Frank

 

01295275998

Thanks Frank for sorting this out for us.

 

Pete.

Thanks for that. Do you have any pictures of that. The part I previously saw was more of an arm than a plate.

Cheers,

 

Here are piccys of the cyclezee torque arms attached to my Specialized Hardrock.

I fitted one on each side as I am running a boatload of torque.

 

[ATTACH]4592.vB[/ATTACH]

 

[ATTACH]4593.vB[/ATTACH]

With a rear motor it's often possible to use only the main part of the eZee torque arm by tapping an appropriate threaded hole on the rear dropout plate. How neat this can be is shown here on one of my own bikes:

 

http://www.flecc.co.uk/t/images/antitorqueplate.jpg

Here are some photos of the eZee torque plate sets that we supply and examples of them fitted to rear wheel motor installations.

 

They are also available here Torque Arm / Plate Sets for Electric Bikes | eBay

 

[ATTACH]4601.vB[/ATTACH][ATTACH]4594.vB[/ATTACH][ATTACH=CONFIG]4595[/ATTACH][ATTACH]4596.vB[/ATTACH][ATTACH]4597.vB[/ATTACH][ATTACH]4598.vB[/ATTACH]

Thanks for the response guys.

And here is a set fitted to a conversion that I did yesterday.

 

It's a Cube Katmandu.....nice;)

 

[ATTACH]4610.vB[/ATTACH]

The rear dropouts on my Giant sus bike were quite tricky to fit ready-made torque arms, so I made a left/right pair from 3.7mm thick stainless steel plate.

 

I made cardboard templates first, with large wrap over tabs to fit snugly around the frame dropout shape. I calculated that the maximum "moment of torque" didn't need the support to be very far from the radius of the axle. The advantage being that they're quite small, so of no significant weight, despite being steel.

 

I cut the 14 mm axle slots very carefully, finishing off with a file to make sure it was a perfect fit. I think that the combination of both sides gives a combined thickness of 7.4 mm, which should be ample, especially in steel.

 

The result is quite unobtrusive and blends in well.

 

[ATTACH]4611.vB[/ATTACH][ATTACH]4612.vB[/ATTACH][ATTACH]4613.vB[/ATTACH]

Made this one out of 6mm plate with an angle grinder and then welded in a piece

 

http://i451.photobucket.com/albums/qq236/d8veh/Giant/SANY0090.jpg

 

http://i451.photobucket.com/albums/qq236/d8veh/Giant/torquearm.png