Groschopp offers torque arms on right angle gearboxes to supply a pivoted connection origin between your gearbox and a set, stable anchor level. The torque arm is employed to resist torque developed by the gearbox. In other words, it prevents counter rotation of a shaft mounted speed reducer (SMSR) during procedure of the application.
Unlike different torque arms which is often troublesome for some angles, the Arc universal torque arm enables you to always position the axle lever at 90 degrees, giving you the the majority of amount of mechanical advantage. The spline design allows you to rotate the torque arm lever to almost any point. That is also helpful if your fork scenario is just a little trickier than normal! Performs great for front and backside hub motors. Protect your dropouts – acquire the Arc arm! Made from precision laser trim 6mm stainless steel 316 for wonderful mechanical hardness. Includes washers to carry the spline section, hose clamps and fasteners.
A torque arm is an extra little bit of support metal added to a bicycle frame to more securely hold the axle of a powerful hubmotor. But let’s rear up and get some even more perspective on torque hands generally to learn if they are necessary and why they are so important.

Many people choose to convert a standard pedal bicycle into an electric bicycle to save money over investing in a retail . This is certainly a great option for a number of reasons and is surprisingly simple to do. Many companies have designed simple change kits that can simply bolt onto a typical bicycle to convert it into an electric bicycle. The only trouble is that the poor dude that designed your bike planned for this to be utilized with lightweight bike tires, not giant electrical hub motors. But don’t be anxious, that’s where torque arms can be found in!
Torque arms are 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, common bicycle tires don’t apply very much torque to the bicycle dropouts. Front wheels basically don’t apply any torque, so the front fork of a bike was created to simply hold the wheel in place, certainly not resist its torque although it powers the bike with the force of multiple professional cyclists.

Rear wheels on standard bicycles traditionally do apply a little amount of torque on the dropouts, but not more than the standard axle bolts clamped against the dropouts can handle.
When you swap in an electric hub motor though, that’s when torque turns into a concern. Small motors of 250 watts or much less are often fine. Even entrance forks can handle the low torque of the hubmotors. Once you start getting up to about 500 watts is when challenges can occur, especially if we’re discussing front forks and even more so when the material is usually weaker, as in light weight aluminum forks.