Options to reinforce rear Dropouts?

[Darth Yoda]

Hi. I seem to remember seeing on the net some kind of safety thing put on the fork on or beside the drop outs if one wants to have more than 250Watts on the hub there, but cant find it. My problem is the rear ones though, as my brother dropped my aluminum frame on a concrete floor from about 40cm height. There is no visible damage there, but i would like to hear some experiences with reinforcing the rear drop outs, or possibly just get some sort of safety on there. Anyways, i will use a mid-drive kit on it when it's painted and nice.

 

[Darth Yoda]

Okey i found it now, they're called Torque Arms. Does anyone know if they can be used on the rear in some way, or another solution?

Thanks.

 

[Ykick]

Mid-drives don't need/use torque arms (TAs).

 

[Drunkskunk]

Yep, they are called torque arms. And you can use one described as a "front" on a rear of your bike. There are no problems with that.

At 250w power, you may not need a torque arm, but it's good protection. They are like condoms: Its better to ride protected. And since you have a suspicion about your rear dropout already, then its not a bad idea.

I can't tell what part of the world you're in, so The best I can do is recomend Ebikes.ca for a good selection of torque arms. Here

 

[Darth Yoda]

Mid-drives don't need/use torque arms (TAs).

It is mainly becouse my brother dropped the frame in the floor most definately on the drop outs, and that the bike is about 10 years old. Especially the drop is highly irritating since i've had this bike for 8 years and i wanna repaint it and electrify it to give it new life. All components will be replaced from a newer bike i've bought on the second hand market.
But either way i've found rear tourque arms on the net which should do the job, but experiences and thoughts on the matter are still very much appreciated.

 

[spisska]

They are like condoms: Its better to ride protected.

Or to put it another way, in the split-second between when your wheel falls out of your frame and before you hit the ground at 20 mph, do you imagine you'll think yourself clever for saving $40?

 

[spinningmagnets]

"Torque arm picture thread" (5 pages)
http://endless-sphere.com/forums/viewtopic.php?f=2&t=26444

 

[dogman dan]

Might be worth sanding off the paint on the dropouts to look for cracks. Since you plan to paint anyway.

Chances are they are not damaged, if you don't see any chips or cracks in the paint. I would trust it with a good torque arm installed.