Brake Master Cylinder - Front Mounting measurement: center-to-center 40mm (1

Mounting measurement: center-to-center 40mm (1

Drive face hole diameter:  15mm (0

Gaskets and fins on jug are also a help in determining the version you have

ATA110L/L1 and Tonga 110 Big Wheel

Brake Master Cylinder - Front Mounting measurement: center-to-center 40mm (1Handlebar Brake Master Cylinder for ATVs, Scooters Mopeds and Dirt Bikes. This handlebar brake master cylinder is the replacement part for many Chinese atvs. This master cylinder fits many 50cc, 70cc, 90cc, 100cc, 110cc and 125cc models. Master Cylinder description: Left side Universal Fits 7 8 inch Handlebar With e brake Uses DOT3 or DOT 4 brake fluid Compatible with 50cc 125cc 4 stroke Need the right side? Here is the link: Chinese ATV Handlebar