Groschopp offers torque arms on right angle gearboxes to supply a pivoted connection source between the gearbox and a fixed, stable anchor point. The torque arm is employed to resist torque produced by the gearbox. Basically, it prevents counter rotation of a shaft installed swiftness reducer (SMSR) during procedure of the application.
Unlike different torque arms which can be troublesome for some angles, the Arc universal torque arm permits you to always position the axle lever at 90 degrees, giving you the many amount of mechanical advantage. The spline style enables you to rotate the torque arm lever to nearly every point. That is also useful if your fork circumstances is a little trickier than normal! Works great for front and backside hub motors. Protect your dropouts – get the Arc arm! Created from precision laser lower 6mm stainless steel 316 for good 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 body to more securely contain the axle of a powerful hubmotor. But let’s returning up and get some even more perspective on torque arms generally to learn if they are necessary and why they will be so important.

Many people want to convert a typical pedal bicycle into a power bicycle to save money over purchasing a retail . This is usually a great option for a number of reasons and is remarkably simple to do. Many makers have designed simple transformation kits that can simply bolt onto a standard bike to convert it into a power bicycle. The only problem is that the poor guy that designed your bicycle planned for this to be utilized with lightweight bike wheels, not giant electric hub motors. But don’t worry, that’s where torque arms come in!
Torque arms is there to help your bicycle’s dropouts (the area of the bike that holds onto the axles of the wheels) resist the torque of a power hubmotor. You see, ordinary bicycle wheels don’t apply very much torque to the bike dropouts. Front wheels essentially don’t apply any torque, therefore the front fork of a bike is made to simply contain the wheel in place, not really resist its torque while it powers the bike with the force of multiple specialist cyclists.

Rear wheels on regular bicycles traditionally do apply a little amount of torque upon the dropouts, but not more than the typical axle bolts clamped against the dropouts are designed for.
When you swap in an electric hub electric motor though, that’s when torque turns into an issue. Small motors of 250 watts or less are generally fine. Even the front forks can handle the low torque of these hubmotors. Once you strat to get up to about 500 watts is when problems can occur, especially if we’re discussing front forks and even more so when the materials is definitely weaker, as in lightweight aluminum forks.