Groschopp offers torque arms on right angle gearboxes to supply a pivoted connection origin between the gearbox and a fixed, stable anchor level. The torque arm is used to resist torque developed by the gearbox. Basically, it prevents counter rotation of a shaft mounted quickness reducer (SMSR) during operation of the application.
Unlike various other torque arms which can be troublesome for a few angles, the Arc universal torque arm permits you to always position the axle lever at 90 degrees, providing you the most amount of mechanical advantage. The spline design and style enables you to rotate the torque arm lever to nearly every point. This is also useful if your fork scenario is a little trickier than normal! Performs great for front and rear 
hub motors. Protect your dropouts – get the Arc arm! Made from precision laser trim 6mm stainless 316 for superb mechanical hardness. Includes washers to hold the spline section, hose clamps and fasteners.
A torque arm can be an extra piece of support metal added to a bicycle framework to more securely hold the axle of a powerful hubmotor. But let’s returning up and get some good even more perspective on torque arms generally speaking to learn if they are necessary and just why they are so important.
Many people tend to convert a standard pedal bicycle into a power bicycle to save lots of money over investing in a retail . This is usually an excellent option for numerous reasons and is amazingly simple to do. Many makers have designed simple change kits that can simply bolt onto a typical bicycle to convert it into an electric bicycle. The only difficulty is that the indegent guy that designed your bike planned for this to be used with lightweight bike wheels, not giant electrical hub motors. But don’t worry, that’s where torque arms can be found in!
Torque arms is there to help your bicycle’s dropouts (the part of the bike that holds onto the axles of the wheels) resist the torque of an electric hubmotor. You see, common bicycle tires don’t apply very much torque to the bike dropouts. Front wheels basically don’t apply any torque, so the the front fork of a bike was created to simply hold the wheel in place, not resist its torque although it powers the bike with the force of multiple professional cyclists.
Rear wheels on regular bicycles traditionally do apply a little amount of torque about the dropouts, however, not more than the typical axle bolts clamped against the dropouts are designed for.
When you swap within an electric hub electric motor though, that’s when torque becomes an issue. Small motors of 250 watts or fewer usually are fine. Even the front forks can handle the low torque of the hubmotors. Once you start getting up to about 500 watts is when concerns can occur, especially if we’re discussing front forks and much more so when the material is definitely weaker, as in aluminum forks.