This response is to a few of the earlier posts, but I can’t be bothered to quote them all.
I was after exactly what I said, which was a 19" tyre, that had the same volume as the 2.5" but with a street tread rather than a trails tread. I think it would be pretty popular seeing as there are a lot of people riding street on 19".
I dont think running a 20" wheel would work too well because there isn’t a wide enough 20" tyre to give you the volume you would want for riding street.
Which brings us back to tyre shaving. I’d really rather buy a tyre that’s already how I want it though!
Oh dear, another double post. It has been a while since my last one though!
I have been thinking more about the shaving tyre thing and I think it probably would be easier if I did just run a 20" BMX rim that is built to take almost as much force as a 19" trials rim. This way you could put a 2.2-2.3" tyre on that is pretty much already shaved.
The main problem with this is that you wouldn’t be able to run the same kind of tyre pressures that people run on a trials tyre cuz it would just feel sloppy and flat. But then you’d probably want it a little stiffer if you were using it for street or skatepark.
Just out of interest, do many people ride predominantly skateparks? I can drop in on an 8foot halfpipe, but it’s impossible to do anything after that. I’d like to run a harder gear and smooth tyre to see if I could actually get up the other side of a halfpipe without pedalling my tits off.
Unless you have sufficient experience with an angle grinder, it should not be your first choice. If you know how and can use an angle grinder fairly well, it will be the quickest method of removing nubs and smoothing tire.
Similar results can be done with a belt sander of sorts.
If you do not have experience and or access to these tools I would go with a razor and then orbital sander. Its not quick, but it works. Make sure you use a rough grit sand paper with the orbital, as you want the tire to be grippy not slick.
I imflated mine to about 40-50psi, so that it was pretty hard. You can see the shape of the tyre better this way. I then took the wheel out of the frame and took the cranks off just to keep them out of the way.
I reckon a Intense micro knobby in 19"x2.7" would be sweet as for flat/street. On rocks and concrete it would have more grip than a Trials tyre I think, as the small pins would grip into small crevaces etc.
I don’t think Dandelion meant that it was available. I think he was saying that it would be his ideal tyre. I think he’s got a good one there, now we just need some manufacturers to realise there is a market for this type of tyre.