JMCHstore 40T High Speed Rear Sprocket | 3-Hole #40/41/420 for Coleman Mini Bikes
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Description
xUpgrade your Coleman and Mega Moto mini bikes with the JMCHstore 40T Rear Sprocket
Designed for high-speed runs on flat roads, this 40-tooth rear sprocket brings a refined riding feel to compatible Coleman B200R, B200 RSV, RT200, RB200, CT200U, CT200UEX, BT200X models and Mega Moto 212/212MAX variants. Rather than a generic replacement, it’s engineered to balance power delivery with smoother transitions, helping you maintain momentum without sacrificing control. The sprocket’s precision engineering and durable construction aim to keep your drivetrain dependable ride after ride.
The kit combines a robust 40-tooth gear with a 3+4 hole mounting design that fits a variety of 40/41/420 chain setups. For riders who value consistency, the center-to-center bolt pattern measures 49 mm, and the center hole diameter is 37 mm, while the overall diameter is 165 mm. With six mounting holes at 6.5 mm each, installation is intended to be straightforward on compatible frames and hubs.
Key benefits at a glance
- 3+4 mounting compatibility with popular 40/41/420 chains, expanding your upgrade options.
- Designed for high-speed runs on flat terrain, supporting stronger speeds where conditions allow.
- Precision-engineered teeth help promote smooth power transfer and more consistent acceleration.
- Durable high-strength steel construction stands up to demanding RPMs and loads.
- Corrosion-resistant gold zinc plating provides lasting protection in diverse weather.
- Clear specifications: 40 teeth, 49 mm bolt circle, 37 mm center hole, 165 mm overall, 6.5 mm hole diameter.
How it performs in real-world use
In daily riding and light racing contexts, the JMCHstore 40T rear sprocket can help maintain steady drive on long straights, support brisker takeoffs from stop, and reduce abrupt gearing changes when shifting between gears on flat courses. The combination of precise teeth and robust steel construction aims to deliver reliable power transfer while resisting wear on the drivetrain over time.
To get the most from this upgrade, pair it with a compatible chain and ensure correct tension. The gold zinc finish not only adds a sleek look but also contributes to long-term rust protection in diverse climates. While results can vary by rider weight, terrain, and maintenance, many users report a more controlled ride and durable performance with this sprocket installed.
Compatibility and specs at a glance
- Teeth: 40
- Chain compatibility: 40/41/420
- Mounting hole circle: 49 mm (center to center)
- Center hole diameter: 37 mm
- Overall diameter: 165 mm
- Mounting hole diameter: 6.5 mm x 6
FAQ
Q: Is this sprocket compatible with my Coleman or Mega Moto mini bike?
A: Fits Coleman B200R/B200RSV/RT200/RB200/CT200U/CT200UEX/BT200X and Mega Moto 212 models; verify the 49 mm bolt circle.
Q: What benefits can I expect from upgrading to the 40T 3-hole sprocket?
A: Possible smoother power transfer, steadier acceleration on straight runs, and improved durability thanks to steel construction and corrosion protection.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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