I purchased this item for a hub motor front wheel conversion kit purchased from a different supplier - the item its self is as described a good solid chunk of hard wearing metal, It has been in place and is still in place and still in good order with no signs of wear or rust, whether or not it works is a hard question to answer, as my wheel is still in place and been used for nearly a year with no issues I would say it was worth purchasing (added safety) however there is a few points I need to mention "they say" a torque arm is not needed for a 250 watt motor as mine is a 350 watt motor I thought I would get one just in case, now if you are new to e-bike kits (as I was) everything you read or buy is in the "grey area" or a bit of a "punt" - I got two of these hoping to place one either side of the front wheel however this did not work nor did one fit on one side so I had to "mash" or customise my own out of the two I purchased with a few tweaks I managed to fit my take on a torque arm. Even watching the video on how to fit one several times I could not get it to fit my bike. I hope this makes sense to anyone reading!!