Expand Quote
Expand Quote
Expand Quote
Rounded sidewall > Conical/sidecut. Always. I have a theory that conicals are just easier to manufacture. They can mold and then cut the side. Sort of how they do with Tablets according to this thread. Radials and shit they have to mold at a curve and get more precise.
Is that accurate? My understanding was that all wheels are milled/cut down to size from a larger mold, rather than directly molded. I'm not super familiar though so maybe someone else can weigh in.
From seeing some videos of pouring wheels, the mold is very much accurate and exact, just trimming off a little excess where the urethane pours in.
Could be different with different manufacturers though, but the only time I know that the Spitfire wheel manufacturer actually machine down wheels to make smaller ones is when they make the Lil Smokies from other bigger wheels that have imperfections or whatever issues that don't allow quality control to let them through as their original sizes and shapes.
I will have to try to look up a video I saw, but I don't think I have ever seen Spitfire wheels poured, apart from some very distant still pics from ages ago - big secret I guess.
* No good ones / short ones to post right this minute, but looking up something like how to make skateboard wheels shows a few interesting videos.
Awesome, thanks for the insight. Definitely makes sense in terms of minimizing material loss. I stand corrected on my earlier theory, not sure where I got that idea.
I have seen some videos of people shaping wheels down to specific shapes and sizes from a common mold though, so you are not that far off for some people / brands / wheel manufacturers.
Even for reshaping bigger wheels down to smaller wheels, the process is still the same, or for plain gravity poured open molds - lathe cut or edge tool and trim the wheel in some or round off the edge, as per one Powell video where the Mini Cubic wheels are poured in a single mold and they have to take off the flat back, or so it appears.
Spitfire seem to be injection mold set, so four nozzles force the urethane into the mold, at least seeing some older wheels that have distinct four quarter parts and then one that did actually split and come apart in the four quarters that I had, so that is an interesting one to note. Not sure if they still do it that way or a single injection or pour, as per some others.
I had heard it said Pointech or some similar brand name was the company there in SF that poured the wheels, but there is so very little information on it. Now they are poured in Mexico, possibly as part of the DLX / BBS manufacturing joint business, which would make sense, but again, zero info, at least that I could find.
This is an interesting read, which I found when looking for more info, from pre 2000 so it has been a while since that came out.
https://www.skateboarding.com/news/spitfires-champion* Amazing read about Ruben Orkin too, which is worth it.