Just bought 3 blasters 2 runners and 1 parts for the wife.wife's quad is a 1995 blaster complete procircit pipe think it's bored 30-40 over 21" tires.she a new rider and we are riding tight trails and she keeps killing it.so is there a good beginner gearing to get used to riding.i have these sprockets front 12 & 13 & 14 and rear 40 & 42 & 45.and I have 3 chains and a chain breaker.thanks for any and all input.