QS 273 hub motor part/mounting question

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NeedForSpeed   100 mW

100 mW
Posts: 48
Joined: Dec 31 2017 12:25pm

QS 273 hub motor part/mounting question

Post by NeedForSpeed » Jan 04 2019 1:39pm

Anyone who may own a QS 273/or just knows, I just bought a QS 273 and there's this rectangular piece of metal on the axle. What is it? Haven't seen anything like this on a hub motor and can't find anything online about it. Also anything I need to keep in mind about it when mounting?

Thanks
qsmotor.jpg
qsmotor.jpg (21.44 KiB) Viewed 149 times
qs273axle.jpg
Custom Build
- Crystalyte TC-100
- Kelly KEB72601
- Battery: 72v 20ah, custom build, 20s8p, Samsung 25R ~150amp continuous
- EM3EV frame
- RockShox Domain RC 27.5" 200mm
- DNM rear suspension 220mm 550 lbs
- Magura MT5E Carbotecture Disc Brake w/motor cutoff
- Magura Storm HC Front Rotor 203mm
- Shimano SM-RT56 Rear Rotor 180mm

flat tire   100 kW

100 kW
Posts: 1043
Joined: Feb 26 2014 12:20am

Re: QS 273 hub motor part/mounting question

Post by flat tire » Jan 04 2019 4:57pm

Torque arm. I made a custom reinforced swingarm with heavy slots to receive the axle so I ditched them. You shouldn't be running a QS273 in bicycle dropouts anyway, torque arms or not.

NeedForSpeed   100 mW

100 mW
Posts: 48
Joined: Dec 31 2017 12:25pm

Re: QS 273 hub motor part/mounting question

Post by NeedForSpeed » Jan 04 2019 7:10pm

Thanks I appreciate the response, makes sense. This is going in an electric enduro frame, so torque arms aren’t much of an issue for me. Previously I was running my bike with a crystalyte TC100.

Basically similar to https://endless-sphere.com/forums/viewtopic.php?t=83797
Custom Build
- Crystalyte TC-100
- Kelly KEB72601
- Battery: 72v 20ah, custom build, 20s8p, Samsung 25R ~150amp continuous
- EM3EV frame
- RockShox Domain RC 27.5" 200mm
- DNM rear suspension 220mm 550 lbs
- Magura MT5E Carbotecture Disc Brake w/motor cutoff
- Magura Storm HC Front Rotor 203mm
- Shimano SM-RT56 Rear Rotor 180mm

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