Darkside a 750 Street
First I would not recommend a Car tire on a normal two wheel bike. SideCar Rig is a different world. I happen to have a Street with a sidecar. The factory 140/75R15 just wears out to fast with a sidecar. That is normal. Because the Street has some room I am sure there is a car tire that will work. I know from my past Micky Thomson makes so odd ball size for racing. Also it looks like a 155/60/15 might work.
It would be slightly smaller Diameter but that could be a plus it would in effect lower gear ratio a bit would work out to 62.3 vs 65 factory. Some home work to do.
A 165/65r15 would be an inch wider than stock and it you be very close on gearing 65.49 vs 65 MPH
A 165/60R15 would be almost prefect 63.68 vs 65 Mph.
A 155/60R/15 would work 62.36 vs 65 mph
If any of you have darksided a Street I am listening.
Last edited by smitty901; 03-02-2019 at 05:00 PM.