I would like to put a pair of 30x3-1/2 inch knobby tires on the rear of the speedster project. Im pretty sure Coker does not have them in 30x3-1/2 inch size. I have not contacted them yet, but I do not see them in their catalog. So does anyone else make them. ???? or does anyone have a useable pair .??? Thanks .....
I have a nos set of 21s on my coupe they are from wards they work great in the snow
Hi Spencer. I have found a few 21 inch knobby tires but no 30x3-1/2 inch.
Check motorcycle tire sites for knobby tires a lot of dirt track racers use them.
Are there any metric size tires that are the equivalent of
30 x 3-1/2 ?
You might just 'make your own'. Those mug boggers and short track guys use tire grooving tools. Get a new set of Universal black wall 30 x 31/2" straight tread, and take them to a mud bogger tire place, and have them groove to make a "knobby" tread
Most likely not what you are looking for but I always got a kick out of this TT front tire solution.
How do you make a straight beaded motor cycle tire work on a clincher 30" rim ?
You can't. different rim profile for each type of bead.
I looked at vintage motorcycle tires. There are some early motorcycle tires that are clincher. But I have not found any 30x3-1/2 inch. Im starting to think they no longer exist in 30x3-1/2 inch size. Ill probably just buy some Wards Riverside tires later, as the aftermarket tires fit my project theme very well. My spare tire is an original Wards Riverside with the S-3 designation from WW2 era. I like the idea of having my spare be a S-3 tire so I can point it out to people who have never seen one. But the "knobby" tires for the rear, would be neat if I could find them Thanks for the input ....
If you could find old non skid patterns, that would be good, but tires are likely real bad aged now or worn!
But still think you could have fun with a 'tire grooving tool' and make knobby's from those Wards Riverside, the pattern of those squares could be separated with the tire tool, and make independent knobby treads. Here is my Microsoft paint pen blackout of the rubber between the treads that could be removed to make "knobby tires"
The wards riverside grooving idea sounds like the best. But I was wondering if it was possible to vulcanize knobby treads onto smoothed worn out tires?
Probably not impossible , that's what recaps are (were ?) but a knobby cap probably doesn't exist, nor equipment to recap a 30x3-1/2.
When I first read this post, my first thought was to mention the Wards Riverside tires. I think they are the closed thing currently available to knobbies.