EpessaCrank Arm Left Available in Diamond Hole and Square Hole,170mm

Item fit perfectly to replace the damaged on on my son's bike. Be careful to select the correct crank axle fit. They are either square or diamond (rotated square).

My bike is older (but I like it). This got me going and the quality is good.

This Crank arm seemed to be as heavy duty as the original on my DMASUN spin bike. While riding my bike the pedal started to feel funny, but I couldn't see the problem. I should have persisted, because the pedal was becoming unscrewed and my weight bent it down--stripping the crank arm hole. Quite a learning curve to figure out what the part name was, which shape hole we needed to order. When you're determining diamond or square shape, your crank arm should be straight down. Then after receiving, we couldn't remove the old crank. Had to search the internet to find out that you need a special crank removal tool. I feel that would be important to highlight in the part description. As you can see there seems to be a little Gap that I don't see on the other crank arm. You can see a gap with Grease. All this resulted in 2 weeks of no spinning! After a 40-minute ride, everything still seems good. Will update later if it changes.

Bought this to replace a left hand diamond crank on a stationary bike that had been stripped out over time so much that the pedal kept falling off. This replacement crank fit perfectly and is working just fine. It is considerably lighter in weight than the original, but it isn't noticeable when riding the stationary bike, doesn't affect pedaling or balance at all. I hope the lighter weight doesn't mean it will strip out sooner or break at some point faster than the original that came with the bike. Only time will tell, but for the price this is a good chance to take.

I use my bike to commute to/from work. I don't have a crazy long commute, only 3 miles or so, and it lasted me 2 days, or about 12-13 miles. The product i received was made from a terrible quality material and wildly undercut my expectations. Horrible product