My son was 16 months when we started taking him on the bike last year. He wears a helmet because we do, and is VERY excited with his new helmet this year. He's pestering us to go on another ride, and asked yesterday where his helmet is. He settled for wearing mine.

We did one 8-mile ride just fine in June. A month later, he freaked out about 2 miles into another long ride. Of course, we were using a bike seat, and not a more comfortable trailer. He loved the 2-mile neighborhood rides with us in August.

And if you have a biking partner that tends to leave you in the dust ... this is the solution you've been looking for.