Found a source for these! Could get a set (4 x tires, tube, hubs) for $100 (or less) for a groupbuy!
Tires are 6" x 2" similar to @psychotillerawesome wheels but much much cheaper (in price and probably quality )
Hubs have 3x bolts I will design a 3d printed htd5 60t pulley to go with them $15-20 each.
Make sure they can handle the pressure needed! Pneumatics need to be able to handle pressures up to 60-70psi, so roll resistance is limited. Otherwise you waste a lot of energy on friction.
Are they longboard truck compatible? The skike ones for example are wider (34mm instead of the needed 24mm if I remember correctly) and need to be lathed down to fit a normal axle.
Still working to get all the details.
You can see this board is using rkp trucks.
It looks like hubs have some sort of adaptor to fit standard truck axles.
I think the small diameter and wide thread should help with rolling resistance.
yeah an axle extender would make sense.
rolling resistance is a b!7ch though - on my 5" skikes I basically need double the amount of energy per km than on the longboard
In this picture, they only have one bearing in the hub…Probably because they couldn’t put a nut on the axle with 2 bearings seated properly in the hub.
@saul can you find out whether they fit on a standard longboard truck/axel ? Also, is the rim able to accept other 6x2 tires and tubes? Some of these small-run proprietary sets end up using atypical measurements and then can’t accept standard replacements.
Sorry by simplifying. Hysteresis is the correct term. There are also some other effects that effect the roll resistance. It has a lot to do with the tire construction itself and the rubber used. We made some prototype tires reducing the roll resistance to a minimum. No more Steel…half the weight, 85 PSI rated, special rubber. They will not be cheap but they roll like a ninja. We just made the decision to produce them.
A lot of the cheap tires from China use funky plastics instead of rubber. Usually these are a bit more glossy just like the image shows. They even copied our Trampa Treads Tire down to the detail. Quality is so shocking…
Anyway: Try these 6" tires and see how they perform. If they perform, great! Hubs won’t fit skate trucks.
Would you like these? 125mm Urethane on Trampa wheels?
So we got to make them in 78A high rebound, premium Urethane, street profile cut, typical Trampa lushness etc.
I’ll do my best to start production ASAP.
)
Hubs have 3x bolts I will design a 3d printed htd5 60t pulley to go with them $15-20 each.
