ebikeling Universal Torque Arm for Electric Bicycle e-Bike Bike Front or Rear Hub Motors and Mid Drive e-Bike
Score By Feature
OveReview Final Score
Product Description
Questions & Answers
Rather than bicycles being built to withstand the amount of force that a motor puts on the wheel mounting sockets, they are not designed to do so. By spreading the force out, the torque arm reduces wear and tear on the machinery. The main difference is between front and rear hub motors is the distance between the sockets and forks. As a baseball shin guard, imagine it as an arm guard. Even though the ball hits just as hard whether you have guards or not, when you have them on, the force is distributed over a much broader area, so it does less damage than it would without them. The mounting slots on hub motors without torque arms will eventually stretch and break, causing your wheel to pop off, and you will be stuck with a wheel that cannot be shifted. A mid mount motor does not use the torque arms, since the torque is applied to the chain rather than the mounting slots. They are thus more likely to damage the chain as a result. Here's hoping this helps, and best of luck with motorizing the house!
On my 2" wheeled fat bike I use a torque arm on the left side. I use two on my 4" fat tire bike, but you can put them on either side. The bike has a 125" tire.
A motor rated at least 500 watts should be used with this product.
A bracket that mounts to the axles, forks and frames of a bike prevents the axles, wheels and hubs from being torqued off the fork dropouts. Mid drive bikes do not have this issue. I don't think it would hurt.
Selected User Reviews For ebikeling Universal Torque Arm for Electric Bicycle e-Bike Bike Front or Rear Hub Motors and Mid Drive e-Bike
I made sure that I secured all the connections properly However, many drops in the front fork were bent to the point of breaking within half an hour of casual riding when the motor was completely ignored by the arm, rotated in the axle, and knocked the headset down! My wheel did not completely break while I was riding it - but it was not too catastrophic. As that would be a dangerous situation traveling at 20 MPH Driving speed of 30 miles per hour. I now have to replace a fork on my bike, which will cost more than not only this torque arm, but other torque arms that are of better quality as well. Moreover, after it failed, I discovered that the company behind the original design, Grin Technologies, was the manufacturer of the torque arms. You can find more information on their Torque Arm page by going to their website. The chapter mentions that a particular design of torque arm (v1) did not prevent high power motors (as most cheap kits today feature, between 500-1000 W Maybe you'll be alright if the fork is made of steel, but on the other hand, everyone has to ask whether a price break is more or less important.
He forgot his bike with them, which is strange. Then, about three months later Upon using the motors for 4 months, the torque from the motors opened the cradle end of the forks, allowing the shaft to turn. After doing a little research on the Internet, I discovered Amazon had these torque arms. We ordered the package quickly, and it was easy to set up (after watching the YouTube video on how to set it up). While his forks use tubing of little diameter, the clamp that came with them was made for tubing that could be reasonably large. My garage had two smaller clamps, so I used them. Even the larger ones would have worked, but I would have had to trim the strap, as the clamp had too much length. All in all, I'm very satisfied with the bike, and my father is very pleased to be able to ride his around the park on the bike. The motorized tricycle is truly a blessing for someone like me who is 92 years old.
It would be nice to have TWO. A torque of 2200 rpm would have the very real possibility of twisting out the fork drop outs without one of these bearings There is a slot beneath the square axle. This is not mentioned in many demos or instructions. I would rate this as a good low-cost product A cost-effective solution, but there are still some cautions to take. It is possible for the hose clamp to come loose. The ideal size is one that provides most solid clamp straps with the least slotted portion. If your dimensions allow you to make this change, make sure you choose one such size.
When fitted with a torque arm, your wheel will remain connected to your fork or frame should the hub bolts, QR, or Thru Axle ever become loose enough to cause a disconnect. Torque arms are especially essential for electric bicycles. An electric bicycle that has a hub motor to increase torque. Even though the item is simple to assemble, there is no assembly guide or suggestion included.
There was also one on the other side that was installed along with this one, and my bike is completely wrecked. Customer service employees told me that what happened was impossible. BUYER BEWARE! We have photos demonstrating otherwise. I would like to add photos and details of my interaction to this review. As soon as my husband attempted to reach out to the seller, he was told the transaction was not possible. followed up with me after I reviewed their site to do more "research". It is all the information I provided. The experts concluded that the problem was caused by my bike being old. It is very likely that this will not happen on the new replacement bike I ordered from them. Before the kit was installed, the bike was brand new and had only been used once. As soon as it was installed, it crashed. It has either been the torque arm or kit that has damaged the bike. After taking our bike to the shop to be repaired, the bike shop told us it could not When I reported all of this to the seller, their exact words were as follows. It doesn't matter how new your bike frame is material can make a huge difference in your bike's capabilities when you convert it into an ebike. The forks should provide enough resistance to absorb any forces. In the same way that steel is flexible and can absorb force, steel can also absorb A lot of frame and forks fail to absorb torque and can shatter if they are put under too much force. They should include this in all of their literature and sales materials.
A poor choice of parts and design. This is the second set I purchased to build two electric bikes, a front-wheel drive and a rear-wheel drive. There's a problem with how long the hose clamp is, and it's a weak, cheap hose clamp as well. You can get a good one the right length if this one doesn't last too long. There was an issue with one kit which was missing the bolt and This bolt has an allen head and is non-threaded There are no plated pieces as shown in the picture. is most likely going to rust.
You really need to make a steel strap with the same design as the coaster brake so that it works properly. You may still run into problems with the fender mount tabs of some 1000w+ hub drives interfering with the pivot bolt. For some 1000w+ hub drives, the clearance at the pivot bolt might be an issue. I will have to design my own pivot bolt for these two bikes. As a result, I put these kits on a shelf for a future project.
The overall quality of this work is excellent The torque arm is made of high-quality materials and is versatile. Despite the width of the slot in the lower part of the arm, it can be used both on the cable side of the ebike electric motor installation as well as on the non-cable side. According to your personal preferences and the shape of your fork, you may prefer the power side. (Even though the torque arm is not strictly necessary with a 250 watt front wheel motor, I thought that it would be a useful safety feature with the aluminum fork. 2) I lowered my rating from 5 to 4 due to the lousy quality of the hose clamp supplied to secure the torque arm to the fork. The screw was very difficult to tighten. The hose clamp I used was a better quality one that I made myself.
It is used on an electric trike conversion that I designed. From looking at other pictures, I figured out how to mount it. As I mounted it and the conversion wheel at the same time, it was easy to install. I made sure that the disc brake was installed before installing I have no problem dealing with that form of conversion, and since the motor can run properly without spinning the axle shaft there is a great deal of longevity. The product is excellent and I intend to purchase it.
Related Products For ebikeling Universal Torque Arm for Electric Bicycle e-Bike Bike Front or Rear Hub Motors and Mid Drive e-Bike
