Meh ... I’ve fitted many pairs of levers made in China to various bikes over the years. I have a hand injury so need to ensure I’m as comfortable as possible , so often but 2 or three types to try . The casting has been decent quality , and I ensure that they fit correctly and are adjusted properly The video suggests a fitting issue rather than a hardware issue IMO .. Chinese stuff still gets a slating , but it’s the quality control that is potentially an issue , not the manufacture. So just ask questions about quality before purchase and don’t fit to your bike if the mounting point specs don’t match the OE All my opinion , YMMV, etc
Watching the video it seems the adjuster was too far in, not allowing the master cylinder to retract to it,s stop, which would not let the brake fluid return. As the brakes heat up the problem compouds. The expanded fluid cannot return to reservoir so it pushes the caliper pistons out causing bind.
I've just put a set of asv shorty levers in the for sale area. Think they're about 90 each. Both for 120
I've had Chinese levers on mine for the last 2 years. I didn't go for the cheapest option, these are as well made as anything else I have seen and they fitted perfectly.
I bought some V-Trek folding ones (not shorty), plenty of choice, but I'm sure they are probably still made in China! If you sign up they have loads of discount vouchers and offers https://www.motea.com/en/catalogsea...ache=&p=1&product_list_limit=36&q=brake+trec+
Run them on all my bikes including my Hayabusa for years, no problems whatsoever, we used to do a lot of cnc work and the workmanship is incredible, most dealers sell pattern stock levers which cost us £3 and no one minds, all the crashes on you tube are installer error not material failure, quite a few hi cost units are made in china they just don't tell you!