The front sprocket has 14 teeth. the rear has 41 teeth, but on mine i have 13 front and 42 rear its more bottom end performance
Take off the chain and then there should be 2 little bolts holding on the sprocket. Remove those and then rotate the sprocket slightly so its teeth line up with the teeth on the output shaft and it will slide right off.
The chain is size 530, and the stock gearing is 15/45, meaning that the front sprocket has 15 teeth and the rear sprocket has 45 teeth.
I have a "Clymer Honda CB 750 Nighthawk 1991-1993 & 1995-1999" book. It says for sprocket sizes, "Drive Sprocket 15 teeth, Driven Sprocket 38 teeth". Nothing else listed in there or in the Owner's Manual as to size.
on an 2005 trx450r there are 12 teeth on the front sprockeet and 37 in the rear
16 teeth in the front 45 teeth in the rear
More teeth in the front sprocket and less teeth in the back sprocket. You can also add performance exhaust, and take the governor out.
More teeth in the front sprocket and less teeth in the back sprocket. You can also add performance exhaust, and take the governor out.
This vehicle will go 45 to 49 mph maximum in its original condition. If you want to increase the speed, change the sprocket ratio. Get a smaller rear sprocket, minus four teeth, and a bigger front sprocket of plus two teeth, then get a larger carburetor and you will gain perhaps five to ten miles per hour. But be careful when ridin in rough terrain at high speed.
If it is pre war it will have spaced out teeth on the front sprocket, this is typical on all pre-war.
The front sprocket on the engine that the drive chain goes round has approx 16 teeth. To drop it down you remove the sprocket and replace it with a 15 tooth. same idea on the back but up 2 teeth which makes the sprocket larger. Reducing the size of the front and increasing the rear will improve acceleration but will have slower top end, usually makes for better low speed handling too.
In the drive train you have the front chainwheel/ring and the rear sprocket that both engage the chain. The pointy bits on sprocket and chainwheel which allows the chain to grip are called teeth. The ratio between the tooth counts is what determines which gear ratio the bike has.