Blue Line Gear Set (Rear Drum Style); GY6 150 7/8" you might want to consider

you might want to consider a couple of items to make your job easier and further upgrade your brakes:

Compliments a Haynes Manual very well

Bearing for spring gear assembly (sometimes called "Christmas tree") Fits VNX1T up to 146314

and many other bikes with Minarelli engines

Blue Line Triangle Air Filter for 125cc / 150cc / 169cc GY6-based Chinese Honda Cloned Engines used in Scooters

Blue Line Gear Set (Rear Drum Style); GY6 150 7/8" you might want to considerReplacement stock gear set for GY6 150 scooters with a rear drum brake set up. Original Parts For Scooters SKU 164 349 Specifications: Includes the counter shaft gear, final gear, output shaft, and final drive shaft Overall Length of Final Drive Shaft: 134mm (5. 25 inches) Final Drive Shaft Splines: 19 Final Gear Teeth: 40 Counter Shaft Gear Teeth (Large): 42 Counter Shaft Gear Teeth (Small): 13 Output Shaft Gear Teeth: 15 Output Shaft Length: 174mm