Gas question

[Wolf]

What octane gas should I use in my bike? The manual says 87 but I never would buy 87 shit gas. So 89 or 92? The engines got 10.5:1 compression so I would think that 92 would be best for it. Any help?

[Mike]

92 dude...:D

[ZX6R]

92's not a must for you but I say put the extra dollar in the tank and not worry about. 12.5 to 1 for me and 92's the only think ever touching my tank.