CILOYU 420 chain sprocket 40T 40mm ready for mini bike upgrade and smooth power transfer.
CILOYU 420 sprocket assembly kit view for quick installation and durable performance.
CILOYU 90-link chain shown for reliable replacement and long-lasting linkage.
CILOYU 420 sprocket with six mounting holes, compatible with multiple mini bikes.
CILOYU 40T teeth detail highlights precision machining for smooth engagement.
CILOYU 90 links chain and tools laid out for easy DIY replacement.
CILOYU compatibility guide shows fitment for BT200X, CT200U, CT100U.
CILOYU Predator 212 engine compatibility setup image for easy reference.
CILOYU chain breaker tool kit and parts for DIY maintenance.
CILOYU 420 chain sprocket 40T 40mm ready for mini bike upgrade and smooth power transfer.
CILOYU 420 sprocket assembly kit view for quick installation and durable performance.
CILOYU 90-link chain shown for reliable replacement and long-lasting linkage.
CILOYU 420 sprocket with six mounting holes, compatible with multiple mini bikes.
CILOYU 40T teeth detail highlights precision machining for smooth engagement.
CILOYU 90 links chain and tools laid out for easy DIY replacement.
CILOYU compatibility guide shows fitment for BT200X, CT200U, CT100U.
CILOYU Predator 212 engine compatibility setup image for easy reference.
CILOYU chain breaker tool kit and parts for DIY maintenance.

CILOYU 420 Chain Mini Bike Sprocket 40T, 40mm – 90/42 Links Replacement for Coleman BT200X, Predator Engines

Overview The CILOYU 420 chain sprocket set combines a larger 40T gear with a robust, purpose-built kit...
Vendor: CILOYU
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£75.80
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CILOYU 420 chain sprocket 40T 40mm ready for mini bike upgrade and smooth power transfer.

CILOYU 420 Chain Mini Bike Sprocket 40T, 40mm – 90/42 Links Replacement for Coleman BT200X, Predator Engines

£75.80
CILOYU 420 chain sprocket 40T 40mm ready for mini bike upgrade and smooth power transfer.
CILOYU 420 sprocket assembly kit view for quick installation and durable performance.
CILOYU 90-link chain shown for reliable replacement and long-lasting linkage.
CILOYU 420 sprocket with six mounting holes, compatible with multiple mini bikes.
CILOYU 40T teeth detail highlights precision machining for smooth engagement.
CILOYU 90 links chain and tools laid out for easy DIY replacement.
CILOYU compatibility guide shows fitment for BT200X, CT200U, CT100U.
CILOYU Predator 212 engine compatibility setup image for easy reference.
CILOYU chain breaker tool kit and parts for DIY maintenance.

CILOYU 420 Chain Mini Bike Sprocket 40T, 40mm – 90/42 Links Replacement for Coleman BT200X, Predator Engines

£75.80
Description
Description
x

Overview

The CILOYU 420 chain sprocket set combines a larger 40T gear with a robust, purpose-built kit designed for mini bikes and compact engines. Built to work with a 420 chain system, this replacement set comes complete, making installation straightforward and helping you refresh power delivery for everyday riding and light off‑road use.

Fitment and Compatibility

Engine compatibility targets Predator 212cc and 196cc units, along with a broad range of popular mini bikes from Coleman, Baja Motorsports, Massimo, TrailMaster, Hensim, Axis, and others. The kit is tailored for different mounting patterns, so check hole patterns before installing to ensure a precise match.

  • Six additional mounting holes accommodate 420 chains on larger mini bikes and engines
  • Four outer holes are suitable for models like CT200U BT200X and similar setups

What It Promises

Designed to be larger in size, the sprocket can offer stronger acceleration and improved climbing ability across varied terrain. Precision-cut teeth promote smooth power transmission, which may reduce chain wear and contribute to longer drivetrain life with regular use.

  • Potential for improved torque delivery on hills and uneven surfaces
  • Smoother engagement that can help extend drive chain life

What's Included

  • 1 × 40T 420 chain sprocket
  • 1 × 420 chain 90 links
  • 1 × 420 chain 42 links
  • 5 × master links
  • 10 × screws
  • 10 × nuts
  • 1 × 420 sprocket 10T
  • 1 × 3/16" keyway
  • 1 × chain breaker

Mounting Facts and Measurements

Important mounting geometry includes a 6-hole center-to-center distance of 49 mm (1.93 inches) and a 4-hole pattern at 80 mm (3.15 inches). The center hole diameter is 40 mm (1.57 inches). The middle mounting hole position helps determine model compatibility, so a quick pattern check can prevent fit issues.

Care and Longevity

With proper installation and periodic inspection, this sprocket kit supports reliable power transfer on trails, tracks, and everyday riding. Regular maintenance of the chain and sprocket can help preserve performance over time.

FAQ

Q: Which engines and bikes is the CILOYU 420 chain sprocket compatible with?

A: Fits Predator 212/196cc and various Coleman, Baja, Massimo, TrailMaster, Hensim mini bikes; verify mounting hole distances for a correct fit.

Q: What’s included in the packing list?

A: Includes a 40T sprocket, 90-link chain, 42-link chain, master links, screws, nuts, 10T sprocket, keyway, and chain breaker.

Shipping & Return
Shipping & Return
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Returns 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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