I'm running 2.75" 17" k56 right now. They were good on the track, and seems on-par with GP-1's. I'm interested in alternatives though.
Anyone have any luck sourcing legitimate slicks? The closest I can find are BT-39ss bridgestone tires. The front will barely fit my 1.5" rims..looks like 1.6" is the recommended minimum.
The next smallest true slicks are Dunlop Moto 3 Race Tires. That seems to be pushing the limits of our rims, and probably heavier than my k56's.
Those old savas f001's from 2013 are long gone..