I looked at them all and the honda is the only way to go. All the others are korean junk. I had an 02 polaris that was broken more than my son rode it. He is seven and loves the Honda. I am going to get my daughter one this spring. The machine is big enough for an adult to ride and is built like an adult machine with a motor and transmission design that has been around since the seventies.
Wish Honda made a TRX50.. I would have bought one in a heart beat.
The TRX90 was just to large for my 4yr son. He would have had a hart time pulling in the break levers and reaching the shifter. So he got new 2005 Jap made, not Korean made, Raptor50 instead on his b-day last year. It has been a rock solid little bike so far.. But it may not last near as long as a Honda. The dam thing cost the same as the TRX90 though.
The Yamaha dealer even made me sign a form stating that no one under 6yrs old would be riding the little 50cc atv?? The first dealer I went to asked my sons age, and I said he will be 4 on his b-day. The dealer then stated that he would not sell me the 50cc atv. Had cash in hand mind you.. I never was asked by the second dealer my sons age, just signed the age form during the sell process..
Everybody is afraid of being sued. All the Jap dealers signed a stupid safety decree years ago to keep from being run out of buisness by the saftey nazis. That is where the silly age shit comes from...
I bought two Hyosung 90 for my kids.
They are Korean, but on researching Hyosung, they are a huge manufacturing giant with a pretty solid reputation. They have been a contract manufacturer for Suzuki for a long time making their 50cc quads, so have plenty of experience.
The build quality is good and so far the engines have been rock solid. I only have two gripes:
1. They are small for 90's - my 10 year old looks way too big when riding his. Having said that, he is huge for his age - about the size of your average 12-13 year old !
2. The battery charging circuit has gone dead on one of them - its probably only a bad connection, but without the wiring diagram its pretty hard to trace the circuit through the wiring harness. The bigger problem with this is that they don't have a back up re-coil starter, so we have to take jump leads where ever we go.
They were $1,500 each, including delivery and so far have been well worth the money.