Yes they know what can happen and what they are supposed and not supposed to do but they always try and one-up each other but they see my scars from a bad bad accident I had that left me with a titanium rod from my hip all the way to my ankle, totaled a Ford ranger and a ole pulpwood truck with a hopped up 400ex when I was 16, truck driver was at fault believe it or not lol anyway I work offshore gobe 2 weeks at a time and when I'm not around they would be more inclined to push the limit of their abilities and I was just trying to prevent it. I wasn't buying a small 4wheeler they would outgrow in a couple years and have to buy more again later plus my boys are above the average size the almost 13 year old is 5'7" 200lb the 10 year old is 5'2 and about 140 so they are size accurate just not "age" appropriate

I bought 3 new rides last week a uforce 1000 for myself a cforce 500 and 600 for my 2 boys age 10 and 13, I want to lower the top speed way way down. I have been on them and watching them so they don't go too fast until the break-in oil is changed after the first 100 miles. I talked with the mechanic in the shop and he said they couldn't correct the fuel map to limit top speed, I'm trying to find out if it's possible I have done fuel map adjustments on cars and trucks via laptop pass-through to obd2 port. My oldest will listen and wouldn't drive too fast my youngest on the other hand is a daredevil like I was. Any info would be helpful