Lexon is being irritating to deal with. The chainrings they sent with the order don't fit the spider.
Been trying to get someone at Lexon to deal with this for a week now and they just keep sending me a response of "can you try pressing it in?" after multiple explanations that they don't fit and I can't just 'press it in.'
There is legit interference in the fit, I'd have to file part of the chainring to get them to fit together.
Chinese products are just getting more and more unappealing. They are moving their prices up to actual brand names but are often way more annoying to deal with.
I weighed mine: here are the weights
Arms: 170mm 357g
50/34 rings+spider: 219g
Bolts: 8g
Lockring for spider: 5g
Total: 589g Typical price seems to be $260-300
Compared to
Red E1 165mm 2x 557g $700
(difference of -32g)
Shimano Dura Ace 170mm crank 50/34 685g Typical price range is between $400 and $500
(difference of +96g)
I can't find the weight of 105 chainrings, are you sure they are lighter than 180g for the 50 and 34?