Sportster Tire Sizes

[billpedalino]

If I remember correctly, the early Sportster (Grasshopper) tire sizes were 4.25-18 for the rear and 3.25-19 for the front. Can anyone please confirm or offer corrections?

Thanks...

[Sportster Jerry]

I am pretty sure the rear should be 4.00 x 18. You are correct on the front.

[vph-d]

The later 60s saw 3.50 front tires, the early 70s saw 3.75 tires. The early 70s switched to 4.25 rear.
VPH-D

[billpedalino]

Thank you....