I ran Dunlop Alpha 14's on my ZXR250C 4 cylinder. They do pretty well for not being slicks. Shots were after a trackday at Wakefield Park in Goulburn, Australia. Rode 2hrs there and 2hrs back after.
Sizes are 110/70/17 and 140/60/18. 26psi hot on the track, 29psi for road (standard pressures)
