90? Are you talking in Celsius? Normal operating temperature while moving should be probably between 170 and 220 (if you're sitting in traffic). 90 and 110 the thing is still cold!!
You're 18 and you bought a ZX10 for your son... WHISKEY TANGO FOXTROT?!?!?bevis said:.Over 2500 on it and couldn't be happier. Use to own VTX 1800 so it has been a change. Bought a ZX10 for my son also but I don't like it. Too small. Both bikes have in creditable power. The ergos on the 14 are more my liking and I got a blue one so I am stuck with the fastest color