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:

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

What Works / What Doesn't

The NCY A8 Camshaft is the premier choice for riders seeking a massive boost in low-end torque and mid-range acceleration

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