yeah thats the stock gearing ratio. the main thing to remember is the HIGHER the CLUTCH gearing the HIGHER the top speed (BUT it will accell slower a bit. you wont even be able to tell).

and the LOWER the TRANSMISSION gears are the HIGHER the the top speed will be
(but much like the clutch, you lose a bit of accel speed but gain higher top speed).

So this is why when i said go to 41x45 trans gears. these gears have less teeth then the stock gears (43x47) but your car will have a higher top speed

gears are normally $4-5 bucks each. also when you get a new gear, Hpi includes a small manual that says which gears to get