Trx450r

I came to an active forum, hoping for some helpful advice. Everyone likes to win right? Thanks for your reply We can pretend I'm a banshee

Do they make them small enough to fit on my honda?

FIRST OFF, SORRY! THIS IS FOR A HONDA, BUT HONDA FORUM IS DEAD A.F. My brother is the banshee Here is my 'issue' I need to win my brother in ALL of the races. Right now, our races consist of two main areas. Ill do my best to explain it for you guys. Race 1: Is a 800-900 ft race that's pretty steep, but its longer, and less steep then race 2, lasting about 25-30 seconds. Race 2: Is about 700 ft and significantly steeper, the races last about 20 seconds. I beat my brother all day long in Race 1 @ the top of third gear I'd say about 85-95% @ the top, just under the rev limiter. I pull on him from bottom, to top of the hill. Race #2 is where I lose. I beat him up until about 3/4 of the hill, then he pulls on me [video @ bottom shows this at 2:50 ish]. I can do the 2nd race in 3rd gear, but I'm about half way to the power band (which is just under rev limiter) and I go faster in 2nd gear, but I'm ON the rev limiter almost the whole time. Now... Here's where I need the help. What should I do with my sprockets to get me as close to the power band for each race. Lower rear sprocket and make third gear smaller, essentially? Raise rear sprocket and make second gear larger? Cut my losses and deal with it? https://www.youtube.com/watch?v=GngQmRnVReM