Groschopp offers torque arms on right angle gearboxes to provide 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. Basically, it prevents counter rotation of a shaft attached quickness reducer (SMSR) during operation of the application.
Unlike other torque arms which is often troublesome for some angles, the Arc universal torque arm allows you to always position the axle lever at 90 degrees, giving you the most amount of mechanical advantage. The spline style permits you to rotate the torque arm lever to almost any point. That is also useful if your fork circumstance is just a little trickier than normal! Performs great for front and back hub motors. Protect your dropouts – get the Arc arm! Made from precision laser minimize 6mm stainless 316 for exceptional mechanical hardness. Includes washers to hold the spline section, hose clamps and fasteners.
A torque arm is an extra piece of support metal added to a bicycle framework to more securely contain the axle of a robust hubmotor. But let’s back up and get some good even more perspective on torque hands in general to learn when they are necessary and why they are so important.
Many people choose to convert a typical pedal bicycle into an electric bicycle to save money over purchasing a retail . This is usually an excellent option for a number of reasons and is amazingly easy to do. Many companies have designed simple conversion kits that can certainly bolt onto a standard bicycle to convert it into an electric bicycle. The only trouble is that the poor man that designed your bicycle planned for this to be used with lightweight bike tires, not giant electric hub motors. But don’t be concerned, that’s where torque arms can be found in!
Torque arms are there to 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, typical bicycle wheels don’t apply much torque to the bike dropouts. Front wheels truly don’t apply any torque, therefore the front side fork of 
a bike was created to simply contain the wheel in place, not resist its torque while it powers the bike with the push of multiple specialist cyclists.
Rear wheels on standard bicycles traditionally do apply a tiny amount of torque on the dropouts, however, not more than the typical axle bolts clamped against the dropouts are designed for.
When you swap within an electric hub motor though, that’s when torque turns into a concern. Small motors of 250 watts or less are usually fine. Even the front forks are designed for the low torque of these hubmotors. Once you start getting up to about 500 watts is when problems may appear, especially if we’re discussing front forks and much more so when the materials is certainly weaker, as in light weight aluminum forks.