Groschopp offers torque hands on right angle gearboxes to supply a pivoted connection source between the gearbox and a fixed, stable anchor point. The torque arm can be used to resist torque produced by the gearbox. In other words, it prevents counter rotation of a shaft mounted velocity reducer (SMSR) during procedure of the application.
Unlike additional torque arms that can be troublesome for some angles, the Arc universal torque arm permits you to always position the axle lever at 90 degrees, providing you the the majority of amount of mechanical advantage. The spline style enables you to rotate the torque arm lever to nearly every point. That is also helpful if your fork problem is just a little trickier than normal! Functions great for front and back hub motors. Protect your dropouts – get the Arc arm! Created from precision laser minimize 6mm stainless 316 for remarkable mechanical hardness. Includes washers to carry the spline section, hose clamps and fasteners.
A torque arm can be an extra piece of support metal put into a bicycle framework to more securely hold the axle of a robust hubmotor. But let’s rear up and get some even more perspective on torque hands in general to learn when they are necessary and just why they happen to be so important.
Many people decide to convert a standard pedal bicycle into a power bicycle to save lots of money over purchasing a retail . This can be a great option for a number of reasons and is remarkably simple to do. Many makers have designed simple transformation kits that may easily bolt onto a standard bike to convert it into an electric bicycle. The only difficulty is that the poor man that designed your bicycle planned for this to be used with lightweight bike tires, not giant electrical hub motors. But don’t fret, that’s where torque arms can be found in!
Torque arms is there to greatly help your bicycle’s dropouts (the part of the bike that holds onto the axles of the wheels) resist the torque of a power hubmotor. You see, ordinary bicycle tires don’t apply very much torque to the bicycle dropouts. Front wheels in fact don’t apply any torque, therefore the the front fork of a bike is built to 
simply hold the wheel in place, not resist its torque although it powers the bike with the power of multiple professional cyclists.
Rear wheels on common bicycles traditionally do apply a tiny amount of torque in the dropouts, however, not more than the standard axle bolts clamped against the dropouts can handle.
When you swap in an electric hub engine though, that’s when torque becomes an issue. Small motors of 250 watts or less are usually fine. Even entrance forks are designed for the low torque of the hubmotors. Once you start getting up to about 500 watts is when complications can occur, especially if we’re talking about front forks and much more so when the material is normally weaker, as in light weight aluminum forks.