My DS is 3.25 and still can not ride a bike. I have tried on several occasions, but we both end up in fits of giggles because he can't do it, trys to grab hold of me while I am pushing him along. I know all children develope at their own pace, i was just wondering about other parents experience and any tips to help. I have tried bribary, getting someone else to try, he seems to rock forward a bit, then stop.