hey there, today I tested these highly praised supersoft slalom/downhill wheels on my tesseract build and I LOVE them - they feel softer than my 90mm abec 75A AND more grippy than my 80A kegels … and all that with a 75mm diameter, i.e. I get a lot closer to the ground AND I can remove all the silly risers again!!
besides the pulley, I sort of expect that Ill need to drill holes. I have access to a drill press, but how do you perfectly center the pulley? what kind of drill is best to get through solid skateboard wheels? wood, metal, stone? would be nice to read the details before I screw up a great set of wheels!
I’m in the same situation as you. Planning on drilling through solid wheels with a drill press but in the dark as to what kind of bit… Please keep me posted as to how your method worked!
theres a drill bit for almost every type of material known , metal , wood and plastic are easy . but for rubber and eurethane needs a hollowed cylindrical drill bit . thin hollow tube with a sharp edge e.g. a hollow punch . i’ve seen it before . just not as commonly used .
just googled this and found eng.tips . engineering tips ?
here , it is advised to put rubber into a fridge so as to partially freeze the rubber before drilling
… well read the advise in it . i am no engineer nor am i good at english .
while here in this short video it is advised to use a dish washer liquid instead of usual cooling oil used in drilling metal . very useful info .
i watched a video before about a diy’er drilling 4 holes into a 90mm solid wheels with just a clamper to hold the wheel with the normal drill bit on a drill press . maybe his drill bit is new and very sharp , i guess . and it worked . made himself an electric longboard . just couldnt find the video . too bad i didnt marked it as “watch later” .
tried it now, 2component epoxy for polyurethane/aluminum. had the wheel in the freezer, but didnt make a real difference - while drilling it heated up right away. used some soap water too, it just evaporated quickly - bottom line: regular drilling like @Chris_KP
the holes didnt look very beautiful, at least I didnt hurt the small inner core:
looks really great, I just didnt find any kind of hollow drill anywhere, so I didnt follow up on that. not sure how easy thats going to work with a thick wheel though
ye, the glue held up 500m, then I carried my board back home.
I then drilled 3mm holes for the original ADS screws and made some sort of socket for wider washers with my colleagues router, so the screws had support by the inner small core and the steel part of the bearing:
overall my test drive was weird though, the drive wheel felt wobbly despite perfectly centered. my guess is, that 73A is really a little too soft for the constant torque of a 63mm motor - my holes also might have structurally impaired the wheel. additionally, my motor and carbon enclosure picked up a lot more stones and other debris, cause the board was a lot closer to the ground (i also removed my risers since I didnt have to be afraid of wheelbite anymore).