I know this is old, but I have had some interaction with Wemoto. For the most part the pattern parts do what they say on the tin, but this doesn't apply 100%.
I bought a complete front fork service kit (so dust/fork seals, upper/lower bush's). Due to work/personal time constraints I paid a shop in London (Leek St Bikes) to complete the rebuild of the forks. Now to be fair to them they didn't source any of the parts, but where negligent in their professional duty to let me know the action of the forks was way too stiff (they would move but stick) - their response was "they will bed in". So this response and the fact that some of the yoke pinch bolts were not tight enough, meant I wont ever use them again moving forward.
Fast forward to finding a local one-man-shop near where I live (1st Motorbike repairs), where Hayden the owner of the shop took the new forks apart and it was at this point we too measurements of the of the seals and bushes and found they didn't match the oem parts. That and we also discovered the Leeke St bikes had not 1. fully flush/cleaned out all the old fork oil and 2. hadn't filled the forks up correctly.
This isn't a rant against Wemoto, but it is a warning that I have gotten from most bike shops (and Gnasher). It is strongly recommended, that you don't fit pattern fork consumables/parts. Or if you do due, make sure you measure them before fitting. I did bring the sizing discrepancies up directly with Wemoto and while they were very helpful and gave me a full refund, they did state that they have never had an issue with any of their pattern form bushes before now. So read into that what you will.