What is a good tire pressure?

[Mr 5 0]

I keep my Firestone Firehawk SV50's at 38 - 40 psi. Different types and brands of tires will require slightly different pressures but 35 - 40 is about average.

Maximum psi won't hurt you assuming the tire is in good condition and mounted properly. One of the most common sources of both tire wear as well as tire failure (blowouts) is under-inflation.

You know the rule; always check tire pressure on a cold tire and check them once per week, minimum. Above all, don't run under-inflated tires. Both you - and your tires - will last longer.