I just posted my experience and I read your inquiry. Joe's Bike Shop is the best and cheapest. he offers his bikes at $12 Belize dollars for 3 hours which is only $6 us dollars and the longer you have the it gets even cheaper. Don't be fooled by the resort prices...$15 us...it's nuts. The locals are the best and Joe's is the only one we ended up finding who was cool and cost effective. Take a walk towards Ruby's Cafe and if you aske anyone they'll point just down the street to Joe's bike shop.

Enjoy your trip...

Put your mind to it...and enjoy!