CILOYU 60-Tooth #35 Sprocket for Coleman CT100U Mini Bike — 50mm Bolt Circle, Lightweight Durable

The CILOYU 60-tooth #35 sprocket is a lightweight, precision-machined replacement designed to fit Coleman CT100U/CC100X and many mini bikes that use a #35 chain.

If you need a direct-fit sprocket that balances reduced weight with full strength, this CILOYU unit offers the specifications and features riders expect: accurate bolt pattern, stable center bore, and an integrated adjuster-friendly design to maintain chain tension. It's made to match common mini-bike models (including several Doodlebug-style and Motovox machines) and to deliver smoother power transfer while resisting premature wear when installed and maintained correctly.

Will this sprocket fit my Coleman CT100U or similar mini bike?

Yes — the sprocket is engineered to the same mounting measurements used on many small-frame mini bikes. Confirm your bike uses a #35 chain and that the bolt circle and center bore match the specs below before ordering.

• #35 chain compatibility with 60 teeth for correct engagement
• Bolt circle diameter (center-to-center): 50 mm (2.0 in)
• Center hole diameter: 37 mm (1.46 in) for hub alignment
• Six mounting holes: 6 mm (0.26 in) diameter each

How does the reduced-weight design affect durability and performance?

CILOYU’s design pares down non-essential material to lower rotating mass while maintaining the structural zones that handle load and torque. The result is a lighter sprocket that still resists bending and carries the same working loads as a standard unit.

• Reduced mass for marginally improved acceleration and fuel use
• Reinforced tooth and hub areas preserve strength under load
• Precision-cut teeth for smoother chain engagement and less wear
• Balanced profile to minimize vibration at typical mini-bike speeds

How do I adjust chain tension after installing this sprocket?

The sprocket’s dimensions and mounting pattern allow use with conventional rear axle adjusters; move the axle tensioner to set chain slack within recommended limits. Proper tension prevents derailment and reduces premature component wear.

• Use the 15 mm axle adjuster to move the tensioner backward or forward
• Maintain slight slack at mid-wheel rotation to avoid binding
• Re-check fasteners and alignment after a short break-in ride
• Lubricate chain and re-check tension regularly for longevity

What are the exact measurements I should verify before buying?

Measure the chain size, the bolt circle, and the hub bore to ensure a correct fit. Cross-referencing these numbers with your mini bike’s existing components reduces installation time and returns.

• Chain size: #35 standard
• Teeth count: 60
• Bolt circle: 50 mm (center-to-center)
• Center hole: 37 mm, six bolt holes at 6 mm each

Who is this for: This CILOYU sprocket is intended for DIY mechanics, mini bike restorers, and riders of small-frame recreational bikes (Coleman CT100U/CC100X owners, Doodlebug-style models, and select Motovox units) who want a durable replacement with reduced rotating mass and accurate fitment. If you maintain your chain and check measurements before purchase, this sprocket will provide reliable performance and straightforward installation.