GREHUA 60-Tooth Rear Sprocket for Mini Bikes, 79–100cc Compatible — #35 Chain, 50mm Bolt Circle, Lightweight Durable

GREHUA's 60-tooth #35 rear sprocket is a durable replacement sprocket engineered to restore drive stability and increase torque for 79cc–100cc mini bikes, go-karts and drift trikes.

If your mini bike or drift trike needs a robust rear drive sprocket that fits #35 chain, this GREHUA 60T unit provides a wear-resistant surface, six-bolt mounting and a lightweight cutaway design. It’s sized to match a wide range of engines—including popular 79cc, 97cc and 100cc models—and aims to extend service life while improving climbing performance when paired with an unchanged front sprocket.

Will this sprocket fit my mini bike or drift trike?

Compatibility is determined by bolt circle, center bore and chain size. This GREHUA sprocket is made for #35 chain and lists a 50 mm bolt circle with six 6 mm mounting holes and a 37 mm center bore, so confirm those dimensions match your vehicle before ordering.

• Designed for #35 chain systems
• Mounting bolt circle: 50 mm (center-to-center)
• Center hole diameter: 37 mm
• Six mounting holes at 6 mm diameter each

How does a 60-tooth rear sprocket affect performance?

A larger rear sprocket raises torque at the wheel and improves low-speed pulling and hill-climbing when the front sprocket remains unchanged. That increased mechanical advantage reduces strain on the engine during climbs, although it slightly lowers top-end speed compared to smaller rear sprockets.

• Increases torque and climbing ability
• Improves drivetrain stability under load
• Trades a degree of top speed for better low-end power

What materials and design features improve durability?

GREHUA combines a high-strength substrate with a wear-resistant surface finish to extend service life against chain abrasion. The plate includes strategic weight-relief cutouts that reduce rotating mass without compromising load-bearing capacity.

• Ultra-high-strength substrate material
• Wear-resistant surface treatment for longer life
• Lightweight design with retained structural strength

How do I verify the dimensions and install the sprocket?

Measure your existing sprocket’s bolt circle, center bore and tooth count to ensure compatibility. Installation typically requires removing the rear wheel or axle plate, aligning the sprocket on the hub, and torquing the six bolts to the vehicle maker’s specification.

• Check the 227 mm overall diameter against your clearance
• Confirm 60-tooth count and #35 chain match
• Use correct bolt torque and thread-lock where recommended

Who is this for: The GREHUA 60T #35 sprocket suits hobbyists, repair shops and backyard mechanics who maintain mini bikes, go-karts and drift trikes with 79cc–100cc engines or any vehicle running a #35 chain and the listed bolt pattern. Pick this sprocket if you want a durable, torque-boosting rear gear that’s built to replace worn originals and improve climbing performance without major drivetrain changes.