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hippy
@cookiemonster
To my surprise 28mm GP4000s on A23's (18/23 width) are noticeably wider than 28mm GP5000s on kinlin xr-31 (19/24 width)
Just googled - and its a thing, the 5000s are narrower than the 4000s, and maybe more extreme between a used 4000 (i have on the front) and a new 5000