Bike for a 6 year old

Brooke Hoyer

2011-04-29

Okay, I want to get a bike for my son. He's 50th percentile on height. And 17th percentile for weight (climber?). So I'd like to get him a reasonable bike that won't weigh a ton. I'm not sure gears are a must and perhaps rear rim brake rather than coaster?
Any advice?
I'll take the comments off list.
Thanks1Brooke Hoyer