Looking for the right sprocket to pair with a 35 chain on your mini bike, go-kart, or dirt bike? This guide reviews five strong choices featuring 50, 40, and 60 teeth that fit 35 chain systems. Each option is explained for specific rider needs, including torque, speed, and installation ease. The best picks target riders who want reliable torque for hill climbs, smoother acceleration, or lightweight setups for better fuel efficiency. Ideal buyers include casual recreational riders, hobbyists upgrading a small displacement ride, and DIY enthusiasts assembling or maintaining mini bikes.
Summary table of selected products:
| Product | Teeth | Fitment | Best For |
|---|---|---|---|
| Saelno #35 Roller Chain Sprocket | 50 | 35 chain, ANSI #35, 5/8 bore | Durable, corrosion-resistant, good torque balance |
| JMCHstore 50T Sprocket | 50 | 35/40/41/420 chain, 6 mounting holes | Balanced performance, versatile mounting |
| GREHUA 60 Tooth Rear Drive Sprocket | 60 | 35 chain, 6-hole pattern | Increased torque for climbing, stable drive |
| CILOYU 60 Tooth Sprocket 35 Chain | 60 | 35 chain, compatible with multiple mini bikes | Sturdy, efficiency-focused, easy install |
| 35 Chain Sprocket 40 Tooth (PSLER) | 40 | 35 chain, 6 mounting holes | Budget-friendly, straightforward replacement |
Saelno #35 Roller Chain Sprocket 50 Tooth

The Saelno sprocket is built for ANSI #35 chain with a 5/8 inch bore and 50 teeth. It features hardened teeth via high-frequency quenching for improved wear resistance and a blackened surface for corrosion protection. It comes with mounting hardware for quick setup. Best for riders needing a straightforward 50-tooth upgrade that adds torque without sacrificing reliability. Consider this option if you prefer a simple replacement with strong durability. A potential limitation is the fixed mounting pattern; verify hole alignment with your model before purchase.
JMCHstore 50T Sprocket For Coleman And More

JMCHstore offers a 50T rear sprocket compatible with Coleman CT100U CC100X, Baja Doodle Bug DB30, and several Mega Moto variants. The product notes indicate a nuanced mounting pattern and ensure a balanced performance, delivering a middle ground between torque and speed. This makes it better for riders who want responsive acceleration with consistent top-end capability. A caution is that some mounting patterns may not fit every Go Kart or mini bike; double-check your bike’s pattern before installing.
GREHUA 60 Tooth Rear Drive Sprocket

GREHUA’s 60-tooth sprocket is designed for a 35 chain and 6-hole mounting. It supports multiple models, including Coleman CT100U CC100X, Baja/Hensim DB30, Motovox MBX10/MBX11, and various Predator/Old Mega Moto configurations. This option increases rear torque, aiding steep climbs and acceleration with minimal chain slip. The design emphasizes wear resistance and a lighter weight for easier installation. If you need more torque overall, choose GREHUA; if your goal is a tighter balance between speed and torque, consider other options in this list.
CILOYU 60 Tooth Sprocket For 35 Chain

CILOYU’s 60-tooth sprocket is compatible with the Baja Doodle Bug DB30, Hensim Doodle Bug DB30, Motovox MBX10/MBX11, and Coleman CT100U CC100X. It highlights a reduced weight design without sacrificing strength, aiming to improve transmission efficiency and fuel economy. Best for riders seeking higher torque with a relatively straightforward installation. A potential limitation is that some setups may require clearance checks due to the larger tooth count.
PSLER 40 Tooth Rear Sprocket For 35 Chain

The PSLER option provides a 40-tooth sprocket with a 6-hole mounting pattern for 35 chain setups. It is advertised as a compatible upgrade for Coleman CK100, CC100X, Baja DB30, TaoTao GK80, and other mini-bike models. The note highlights burn marks from the quenching process to improve hardness, and mentions that models shown are for reference. Choose this if you want a cost-effective, easy replacement, and ensure your bike model matches the mounting pattern before ordering.
Buying Guide
What should you consider when choosing a 50-tooth (or 40/60) sprocket for a 35 chain?
- Bike compatibility: Verify your model’s mounting holes and bore size. A 6-hole pattern is common for many mini bikes, but some models require a different bore.
- Tooth count and torque: More teeth generally increase torque and climbing ability, while fewer teeth can improve top-end speed. Balance your riding style with your torque needs.
- Chain compatibility: Ensure the sprocket is designed for ANSI #35 chain, or the specific chain you use. Mismatched chains can cause slippage or premature wear.
- Material and heat treatment: Hardened steel with protective finishes lasts longer under high torque and dirty conditions but may be heavier.
- Installation: Look for sprockets that include mounting hardware and clear installation instructions to minimize downtime.
Performance considerations
- Torque vs. speed: For hills and heavy loads, prioritize higher tooth counts; for flat terrain and quick acceleration, a lower count may be preferable.
- Weight: Lighter sprockets reduce rotational mass, aiding acceleration and fuel efficiency on small displacement engines.
- Durability: Hardened teeth and corrosion-resistant coatings extend life in dusty, wet, or humid conditions common to outdoor rides.
Installation tips
- Compare mounting hole spacing to your existing hub before purchasing.
- Apply a light coat of lubricant to the chain during installation to reduce wear.
- Tighten mounting hardware evenly to avoid warping or misalignment.
FAQ
- Q: Will a 60-tooth sprocket fit on my mini bike with a 35 chain?
- A: It can, if the mounting pattern and clearance are compatible. Check the six-hole pattern and ensure there is enough space behind the sprocket for chain wrap.
- Q: Is a 40-tooth sprocket good for climbing hills?
- A: Generally not. A 40-tooth is closer to a speed-focused setup; it provides less torque than higher-tooth options.
- Q: Do all 35 chain sprockets fit Coleman CT100U?
- A: No. Fit depends on bore size, mounting pattern, and model compatibility. Always verify model-specific details.
- Q: Can I install a different tooth count without changing the chain?
- A: Yes, but you may need to adjust chain tension and alignment. Consult the manufacturer’s guidelines for recommended ranges.
- Q: Are these sprockets corrosion-resistant?
- A: Many are treated or coated (e.g., blackened finishes) to resist corrosion, but exposure to harsh elements can still require maintenance.
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