The Best 40T Sprocket of 2025 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 40T Sprocket of 2025. Check our ranking below.

2,806 Reviews Scanned

Rank No. #1

CILOYU Mini Bike Rear 35 Sprocket 40T Compatible with Coleman CT100U CC100X Trail 100 CK100 Baja DB30 TaoTao GK80 Monster Moto 80cc Motovox MBX10 MBX11 Predator 97cc Mini Bike Go Kart Parts

100% FITMENT: 35 chain sprocket is compatible with Baja Doodlebu* DB30 (Blitz, Dirt Bu*), Hensim Doodlebu* DB30 (Blitz, Dirt Bu*), Motovox Mbx10 Mbx11, Monster Moto MM-B80 MM-B105, Coleman Powersports CT100U CC100X
DOUBLE IMPROVED DETAILS: (1) Improved mounting hole spacing and 6 mounting holes for improved compatibility. (2) The 40-tooth sprocket ensures optimal power transfer and smooth chain operation. Not only enhances rading efficiency but is also perfect for high-speed riding, ensuring optimal efficiency and stability of your mini bike chain
TOOL-FREE INSTALLATION: Easy to install on the mini bike, installation takes only 5 minutes. Packing list: 1 x mini bike rear sprocket, 6 x screws, 6 x nuts, 1 x spanner, 5 x #35 master links
DURABLE CONSTRUCTION: The #35 sprocket is made of precision machined premium metal alloy, designed for #35 chains with precision tooth design to ensure seamless compatibility and optimal efficiency. The premium metal ensures long-lasting using and resistance to wear and tear. This sprocket has a longer service life than other sprockets
SIZE: The chain size: 35 chain, tooth count: 40t, mounted holes: 6 holes, mounting hole diameter: 1.46" (37 mm), mounting hole distance: 1.92" (49 mm)

Rank No. #2

YOXUFA 40/41/420 Chain 40T Tooth Mini Bike Sprocket 40mm Bore for Coleman BT200X CT200U CT200U-EX Baja Warrior TrailMaster Massimo MB165 MB200 Axis M200 Predator 212 196cc 200cc 6.5hp Go Kart Parts

Compatibility: Coleman BT200X CT200U CT200U-EX CT200U-EXR, Baja MB165 & MB200 (Heat, Mini Baja, Warrior), Massimo MB200, TrailMaster MB200, Axis M200, Coleman KT196 go kart ( NOT for B200R, RT200, B212 etc )
Attention: Please note that this mini bike rear sprocket uses a 4-bolt mounting pattern, not 3 hole pattern, make sure this is what you want before purchasing
Durable Material: The sprocket pitch perfectly matches the 420 chain. It is made of durable and wear-resistant material, so the chain is not easy to come off
Size of 420 Chain Sprocket: 40/41/420, teeth: 40 Tooth. Mounting hole distance (center to center, bolt hole circle): 3-3/16" (80 mm). Center hole diameter: 1-9/16" (40 mm). Overall diameter: 6-1/2"(165mm)
Note: This 40 tooth sprocket is designed for 420 chain, Not for #35 chain and others

Rank No. #3

JMCHstore 40T High Speed Rear Chain 6 Hole Sprocket # 40 41 420 for Coleman CT100U CC100X Mega Moto MMB80 105 Baja Doodle Bug DB30 Motovox MBX10 Mini Bike

JMCHstore 40T Sprocket #40/41/420 Chain for Coleman CT100U CC100X RB100 B100 Mini bike; Baja Doodle Bug DB30 Mini bike; ( 𝐃𝐨𝐞𝐬 𝐧𝐨𝐭 𝐟𝐢𝐭 𝐀𝐧𝐲 𝐆𝐨 𝐤𝐚𝐫𝐭 𝐝𝐮𝐞 𝐭𝐨 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐦𝐨𝐮𝐧𝐭𝐢𝐧𝐠 𝐩𝐚𝐭𝐭𝐞𝐫𝐧. )
For Monster Mega Moto MMB80 MMB105; Motovox MBX10 Mini bike; Oryxearth 105cc; For FPR GMB100 Mini bike Rear wheel Sprocket .
𝐃𝐞𝐬𝐢𝐠𝐧𝐞𝐝 𝐟𝐨𝐫 𝐔𝐩𝐠𝐫𝐚𝐝𝐞𝐝 𝐄𝐧𝐠𝐢𝐧𝐞𝐬 – Perfect for 212cc and larger engines, ensuring optimal power transfer without chain slippage.
𝐏𝐞𝐫𝐟𝐞𝐜𝐭 𝐟𝐨𝐫 𝐇𝐢𝐠𝐡-𝐒𝐩𝐞𝐞𝐝 𝐑𝐮𝐧𝐬 – Designed for flat roads and racing, allowing for higher speeds without compromising power delivery.
𝐒𝐦𝐨𝐨𝐭𝐡𝐞𝐫 𝐀𝐜𝐜𝐞𝐥𝐞𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 – Reduces torque strain while improving engine efficiency, delivering a more refined riding experience.

Rank No. #4

CILOYU 35 Chain Sprocket 40 Tooth Compatible with Coleman Mini Bike CT100U CC100X CK100 Baja DB30 TaoTao GK80 Monster Moto 80cc MBX10 MBX11 Predator 79cc 97cc 98cc 100cc 2.5hp Go Kart Parts

100% FITMENT: 35 chain sprocket is compatible with Baja Doodlebu* DB30 (Blitz, Dirt Bu*), Hensim Doodlebu* DB30 (Blitz, Dirt Bu*), Motovox Mbx10 Mbx11, Monster Moto MM-B80 MM-B105, Coleman Powersports CT100U CC100X
DOUBLE IMPROVED DETAILS: (1) Improved mounting hole spacing and 6 mounting holes for improved compatibility. (2) The 40-tooth sprocket ensures optimal power transfer and smooth chain operation. Not only enhances riding efficiency but is also perfect for high-speed riding, ensuring optimal efficiency and stability of your mini bike chain
TOOL-FREE INSTALLATION: Easy to install on the mini bike, installation takes only 5 minutes. Packing list: 1 x mini bike rear sprocket, 6 x screws, 6 x nuts, 1 x wrench, 5 x #35 master links
DURABLE CONSTRUCTION: The #35 sprocket is made of precision machined premium metal alloy, designed for #35 chains with precision tooth design to ensure seamless compatibility and optimal efficiency. The premium metal ensures long-lasting acting and resistance to wear and tear. This sprocket has a longer service life than other sprockets
SIZE: The chain size: 35 chain, tooth count: 40t, mounted holes: 6 holes, mounting hole diameter: 1.46" (37 mm), mounting hole distance: 1.92" (49 mm)

Rank No. #5

Superlong 40 Tooth Mini Bike Sprocket for 40/41/420 Chain, Rear Sprocket 37mm Bore with 6 Hole Fit for Coleman CT100U CC100X Baja Doodle Bug DB30 Monster Mega Moto MMB105 Mini Bike Parts

【Professional Customization】The 420 sprocket is designed specifically for Coleman CT100U, CC100X, RB100, B100, Baja Doodle Bug DB30, Oryxearth 105cc, Mega Moto MMB80, MMB105 and other engine
【Quality Carbon-Steel】The go kart sprocket is made of high-quality carbon-steel material, with strong hardness and greater durability. The whole body is designed in gold, and it will appear red in the sunlight, making your DIY mini bike even cooler
【Strong-Performance Improvement】The sprocket for mini bike can provide faster acceleration performance, increase rotational speed, stabilize chain engagement, and prevent chain slippage to cope with different complex terrains such as rough, sandy, and slippery terrain
【Precision Cutting】The 40 chain sprocket will be highly engaged with the chain to avoid chain slippage, maintain stable operation during transmission, improve transmission efficiency, reduce wear and energy loss, and extend the service life of the entire transmission system
【Simple Installation】You will receive 1 rear sprocket, 6 screws, and 6 nuts. Simply use the screws and nuts to secure the 420 sprocket for mini bike to the car and complete the DIY modification of your beloved car

Rank No. #6

Mini Bike Sprocket 40/41/420 Chain 40T Tooth 40mm Bore Replacement for Coleman CT200U CT200U-EX BT200X Mini Bike Go-Kart Baja Warrior Massimo MB165 200 Predator196cc 200cc 6.5hp Go Kart Parts.

COMPATIBILITY: Mini Bike Sprocket for Coleman Powersports CT200U / CT200U-EX / CT200U-EXR / BT200X, Baja Motorsports Mini Bike MB200 & MB165(Heat, Mini Baja, Warrior), Hensim Mini Bike Massimo MB200, TrailMaster MB200. 420 Chain Sprocket Work on Coleman Baja Warrior TrailMaster Massimo 196cc 200cc 212cc MB165 MB200 6.5hp Powersports Mini Bike Go Kart.
HIGH QUALITY CONSTRUCTION: This mini bike rear sprocket is The precision-machined metal alloy construction ensures firmness and resistance of mini bike rear sprocket to wear and tear, providing long-lasting performance.The black anodized finish of our 40T Sprocket provides excellent protection against rust and corrosion.
EASY INSTALLATION:Size of 420 Sprocket,40 Tooth Teeth,40/41/420 Chain,Center Hole Diameter: 1-9/16" (40 mm), Overall Diameter: 6-1/2"(165mm).With easy installation, this high-quality sprocket will provide smoother and more efficient riding on your mini bike.
PROVIDES EFFICIENT POWER TRANSFER:Upgrade your mini bike with this high-quality rear sprocket designed for efficient power transfer. Our 40T rear sprocket offers increased speed and improved fuel efficiency, provide your mini bike more powerful power to conquer all kinds of terrain.
PACKAGE INCLUDE: 1 * 40 Chain Sprocket,4 * Nuts, 4 * Screw, 3 *420 Chain Master Links.Install and replace your mini bike's rear sprocket, allowing for a hassle-free experience.

Rank No. #7

35 Chain Sprocket - 40 Tooth Sprocket 35 Chain Mini Bike Rear Sprocket for CC100X CK100 Baja DB30 TaoTao GK80 Monster Moto 80cc MBX10 MBX11 Predator Mini Bike Dirt Bikes Go Kart,Black

[Note] The surface of the sprocket has burn marks due to quenching process, aiming to improve the hardness and durability of the product. The product is a modified accessory and models listed below are for reference only. If you have any questions, please feel free to let us know and assist in resolving them, so that customers can have a satisfactory shopping experience.
【Fitment】Our go kart 35 chain rear sprocket firs for 40 teeth bike model and is used with a 35 size chain. For most go-karts/mini-bikes/dirt bikes.Such as sprocket for Coleman CC100X CK100 Baja DB30 TaoTao GK80 Monster Moto 80cc MBX10 MBX11 Predator and more
【Size】The 40 tooth sprocket 35 chain has 6 mounting holes. For detailed dimensions, please check the product size chart. Before placing an order, please pay attention to whether the product dimensions match your car model.
【Material】The mini bike 40 tooth 35 sprocket is made from heavy-duty steel material, which not only enhances racing performance and increases riding speeds, but is also able to cope with any conditions that karts face.
【Package】1*400 tooth sprocket 35 chain.Installation instructions not included

Rank No. #8

35 Chain 40 Tooth Sprocket - PSLER 40T Rear Sprocket Replacement Part for Go Kart Quad Mini Bike Dirt Bikes Monster Moto Mega Moto TaoTao GK80 Gas Go Kart

【Note】There are burn marks on the surface of the product due to quenching process, which aims to increase the hardness and durability of the product. The models listed below are for reference only. If you have any questions, please feel free to let us know and help solve them, so that customers can have a satisfactory shopping experience.
【Fitment】Our rear #35-40t-37mm chain rear sprocket firs for 40 teeth bike model and is used with a 35 size chain. For most go-karts/mini-bikes/dirt bikes.Such as sprocket for Coleman CC100X RB100 trail 100 Mini Bike Coleman CK100 SK100 Go Kart Monster Moto Mega Moto TaoTao GK80 Gas Go Kart and more
【Size】The 40 tooth #35 sprocket Sprocket has 6 mounting holes. For detailed dimensions, please check the product size chart. Before placing an order, please pay attention to whether the product dimensions match your car model.
【Material】The 40t rear sprocket is made from heavy-duty steel material, which not only enhances racing performance and increases riding speeds, but is also able to cope with any conditions that karts face.
【Package】1*40 tooth #35 sprocket sprocket.Installation instructions not included

Rank No. #9

40T Rear Chain Sprocket # 40 41 420 for Coleman CT100U CC100X Mega Moto MMB80 105 Baja Doodle Bug DB30 Motovox MBX10 Mini Bike

【Compatible Models】 For Coleman CT100U CC100X RB100 B100, Baja Doodle Bug DB30, Monster Mega Moto MMB80 MMB105, Motovox MBX10, Oryxearth 105cc, FPR GMB100
【Friendly Reminder】The size of the center mounting hole on the 420 sprocket determines its compatibility with your mini bike. Please verify dimensions carefully before purchase. The 420 sprocket is suitable for modified mini bikes equipped with a 420 chain and a 212cc or larger displacement engine.
【Application】The 40-tooth sprocket balances torque and RPM, delivering both acceleration performance and high-speed smoothness. Its tooth profile perfectly matches chain pitch, making it suitable for both road and track use.
【Product Material】Constructed with a high-strength carbon steel core and zinc-plated finish, our product offers exceptional wear resistance and corrosion protection. This reduces chain wear and extends the lifespan of your drivetrain.
【After-Sales Service】Should you encounter any issues before or after use, we are here to assist you in resolving them.

Rank No. #10

CILOYU 420 Chain Mini Bike Sprocket 40T 40mm with 90 Links 42 Links Replacement for Coleman BT200X CT100U CT200U-EX CT200U CC100X Baja MB165 MB200 Doodlebug DB30 Predator 212 196cc Engine Parts Kit

Fitment: The 420 chain sprocket 40T kit is compatible with Predator 212cc 196cc 200cc 6.5hp engine Coleman Baja TrailMaster Massimo Powersports mini bike go kart. Coleman Powersports BT200X CT200U-EX CT200U KT196, Baja Motorsports mini bike MB165 & MB200 (Heat, Mini Baja, Warrior), Hensim mini bike MB165 & MB200 (Heat, Mini Baja, Warrior), MASSIMO MB200, TrailMaster MB200 MB200-1 MB200-2, Axis M200
Compatibility: Baja Doodlebu* DB30 (Blitz, Dirt Bu*), Hensim Doodlebu* DB30 (Blitz, Dirt Bu*), Motovox MBX10 MBX11, Monster Moto MM-B80 MM-B105, Coleman Powersports CT100U CC100X
Note: The distance of the middle mounting hole determines which model the sprocket is suitable for. This sprocket fits the 420 chain. Compared with other 420 sprockets, this sprocket has six more mounting holes that are suitable for mini bikes with 420 chains and larger engines, such as the Coleman CT100U, CC100X and so on. The four mounting holes outside are suitable for installation on mini bikes such as CT200U BT200X
Improved Sprocket: The 420 sprocket is larger in size and has stronger acceleration, climbing power and higher torque on all terrain. Precision chain teeth ensure smooth power transmission, reducing chain wear and extending the life of the drive chain
Size: Teeth: 40 tooth. 6 holes mounting distance (center to center, bolt hole circle): 1.93" (49 mm). 4 holes mounting distance (center to center, bolt hole circle): 3.15" (80 mm). Center hole diameter: 1.57" (40 mm)

Last update on 2026-03-21 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best 40T Sprocket?

Do you get stressed out thinking about shopping for a great 40T Sprocket? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 40T Sprocket, which is why we have assembled a comprehensive list of the greatest 40T Sprocket available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 40T Sprocket that you consider buying. Your questions might include the following:

Is it worth buying an 40T Sprocket?
What benefits are there with buying an 40T Sprocket?
What factors deserve consideration when shopping for an effective 40T Sprocket?
Why is it crucial to invest in any 40T Sprocket, much less the best one?
Which 40T Sprocket are good in the current market?
Where can you find information like this about 40T Sprocket?

We’re convinced that you likely have far more questions than just these regarding 40T Sprocket, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 40T Sprocket, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 40T Sprocket. Make sure that you are only using trustworthy and credible websites and sources.

We provide an 40T Sprocket buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 40T Sprocket currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of 40T Sprocket has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an 40T Sprocket?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your 40T Sprocket.
Customer Ratings: Number ratings grade 40T Sprocket objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 40T Sprocket.
Product Quality: You don’t always get what you pay for with an 40T Sprocket, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an 40T Sprocket is should be an indication of how long it will work out for you.

We always remember that maintaining 40T Sprocket information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 40T Sprocket is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

The Best 40T Sprocket of 2025 – Reviewed and Top Rated

How Do You Buy The Best 40T Sprocket?

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