Re-enforcing dropouts

Sacko

Esteemed Pedelecer
Aug 23, 2011
281
13
Just picked up my new project, a Giant XC se + Bafanag 48v 500w.

Unsure if I need to reinforce the dropouts, and if so which is the neatest method.

I have used torque arms before from BMS Battery, and although they do the job, they look awful.

 
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amigafan2003

Esteemed Pedelecer
Jul 12, 2011
1,389
139
Yup - you deffinately need something on those rear dropouts.

I know you've said 48v 500w motor but that means nothing - what voltage battery will you be using and what amps will your controller put out.

I'd be looking at something like these on those soft alloy dropouts.
 

Sacko

Esteemed Pedelecer
Aug 23, 2011
281
13
44v Lipo @ 20amps at a guess.

Cheers for the link, will have a flick through.
 

Sacko

Esteemed Pedelecer
Aug 23, 2011
281
13
Pretty sure the Bafang axle is M12, after reading that thread; they look to be 10mm cut outs too.
 

amigafan2003

Esteemed Pedelecer
Jul 12, 2011
1,389
139
Pretty sure the Bafang axle is M12, after reading that thread; they look to be 10mm cut outs too.
Yup - the axle may be 12mm but the flats are 10mm across :)

44@20v - so 1kw max - that's not actually that high - something like ezee's arms would siffice.

Thought you'd be going higher with lipo + the BPM.
 

Sacko

Esteemed Pedelecer
Aug 23, 2011
281
13
Of course, makes sense :) Cheers...

I did see them, they look ok.

I plan to upgrade the controller, and most likely cell count at some point so will need something pretty robust.

As long the bike climbs these hills anyway...
 

boyced

Finding my (electric) wheels
Jul 16, 2012
21
0
A, A
looks similar to my bike, had to remove disk caliper on rear as didn;'t fit with magic pie 2.