This short school holiday, I taught my son how to ride a bike. It took him a coupe of hours but he got to muster bike riding using my Tern folding bike (read it here: http://meoramri.blogspot.my/2015/03/for-my-birthday-i-got-myself-tern.html). I got to get a bike for him so I went to Rodalink in Presint 15 Putrajaya and got him this mountain bike from Polygon for around RM1,000 (after discount). For this price I got an aluminium framed bike with Shimano 24 gears (3 x 8), disk brakes and front shock absorbers. The wheels are 24 inches.