Best Chain And Sprocket Kits for Dirt Bikes, ATVs and More

#1 · Best Overall

1. MRELC 420 Chain Set

Best for: Small-engine drivetrain upgrade.

Why it ranks #1: Its 420 chain has 120 links, and the set is listed for 50cc-to-170cc machines with 13T and 35T sprockets.

A 120-link 420 chain paired with 13-tooth front and 35-tooth rear sprockets gives this MRELC set a complete drivetrain package for 50cc-to-170cc machines. Its broad stated engine range makes it a candidate for riders refreshing a dirt bike, ATV, go-kart, or mini bike with one coordinated chain-and-sprocket set.

The 420 chain’s 120 links provide a longer supplied chain than the 106-link CMIYETO set, while the included 13T front sprocket and 35T rear sprocket make the gearing components part of the same package. MRELC lists use on dirt bikes, ATVs, go-karts, and mini bikes with engines from 50cc to 170cc, including CRF150, YZ80, SSR, Lifan, and Coolster models. That stated range helps shoppers narrow candidates, but the listing does not provide a chain-tensioner tool.

Skip it if you need a chain tensioner in the package; CMIYETO’s 106-link 420 set includes one.

Choose this MRELC set if you are refreshing a listed small-engine dirt bike, ATV, go-kart, or mini bike and want chain and sprockets together. Its stated 13T/35T gearing and 120 links are the key fit considerations.

Listed on Amazon as: Ultimate 420 120 Links Chain & 420-13T& 35 Tooth Sprocket Set for 50cc to 170cc Dirt Bikes, ATVs, Go Karts, & Mini Bikes – CRF150, YZ80, SSR, Lifan, Coolster, & More!

#2 · Best With Tensioner

2. CMIYETO 420 Set

Best for: Small ATV service kit.

Why it ranks #2: The 106-link 420 chain, 14T front and 37T rear sprockets, tensioner and screws suit listed 50cc-to-125cc machines.

A chain tensioner and remover tool come alongside the 106-link 420 chain and 14T/37T sprockets in this CMIYETO package. That combination gives small-bike and ATV owners drivetrain parts plus a tool for chain work, with listed applications spanning 50cc through 125cc machines.

The 106-link 420 chain is paired with a 14-tooth front sprocket and 37-tooth rear sprocket, giving buyers the listed components for a coordinated replacement. A chain tensioner, also described as a breaker or remover, and four screws are included, which supports chain adjustment or removal work without sourcing that tool separately. CMIYETO lists 50cc, 70cc, 90cc, 110cc, and 125cc bikes, mini bikes, ATVs, and go-karts; the sprockets are described as heat-treated for strength and wear resistance.

Skip it if you need a 120-link chain for a longer reach; MRELC’s 420 set lists 120 links.

This kit suits owners of listed 50cc-to-125cc bikes, ATVs, mini bikes, or go-karts who value an included chain tool. Check that its 106 links and 14T/37T gearing match the intended drivetrain.

Listed on Amazon as: 420 Chain Front & Rear Sprockets Set 106L Chain & 37 Teeth Rear Drive Sprocket & 14 Teeth Front Sprocket & Chain tensioner for 50cc 70cc 90cc 110cc 125cc ATV Go Kart Taotao Coolster Mini Pit Dirt Bike

#3 · Best Dirt Bike Kit

3. D.I.D YZ250 Kit

• Weight: 6.32 lb

Best for: YZ250 non-O-ring setup.

Why it ranks #3: This model-specific kit fits Yamaha YZ250 applications listed from 1999 to 2015 and includes a 116-link 520DZ2 chain with 14T/51T gearing.

A 14/51 sprocket pairing gives this D.I.D kit one tooth more at the rear than the stated stock setup for the Yamaha YZ250. The 520DZ2 chain is non-O-ring, and its SDH-treated pins are described as having a hard outer layer with a softer inner core.

D.I.D lists this kit for the Yamaha YZ250 and pairs a 116-link, gold 520DZ2 non-O-ring chain with 14T front and 51T rear sprockets. The rear is identified as one tooth over stock, giving buyers a clearly specified gearing variation. Its SDH pin treatment forms an extremely hard chromium-carbide layer while maintaining a soft inner core. The redesigned chain has a projected wear life twice that of the 520DZ and four times that of a standard chain under similar conditions.

Skip it if you want an X-ring chain for a listed Honda CBR1000 RR; D.I.D’s 530VX kit specifies that chain type.

Choose this kit if your Yamaha YZ250 setup calls for a 520 non-O-ring chain and the listed 14/51 gearing. The one-tooth-over-stock rear and chain type are important boundaries for buyers preserving another configuration.

Listed on Amazon as: D.I.D MXY-001OEM+1 520DZ2 Gold Chain and 14 Teeth/51 Teeth Sprocket Kit

#4 · Best 525 Kit

4. Vortex CK2136 Kit

• Weight: 2.7 lb

Best for: Factory-gearing street replacement.

Why it ranks #4: It provides a 525SV3-112 chain with factory 16/42 gearing, making it a defined option for compatible street-bike applications.

Factory-matched 16/42 gearing and a 112-link 525 street chain make the Vortex CK2136 a straightforward replacement option for buyers seeking the listed stock configuration. Its ready-to-install chain requires no cutting, helping avoid a separate chain-length preparation step.

The CK2136 pairs a 525SV3-112 chain with 16/42 gearing, matching the factory gearing and chain size described for this kit. That combination is relevant to street-bike owners who want a replacement set without the listed gearing change found in Vortex’s 15/45 kit. Vortex states that the chain is ready to install without cutting and uses its SV3 dual-pocket sealing system, which it says can provide up to seven times the wear life of standard O-ring chains.

Skip it if you want 15/45 gearing and a 520 chain; Vortex’s 3-Ckg6134 kit lists that setup.

The CK2136 suits street-bike owners seeking the specified 525, 112-link chain and unchanged 16/42 gearing. Its no-cut installation is convenient, while riders seeking a different ratio should focus on a kit listing altered gearing.

Listed on Amazon as: Vortex CK2136 Chain and Sprocket Kit , Black

#5

5. D.I.D CBR1000 RR Kit

• Weight: 8.65 lb

Best for: Honda CBR1000 RR chain kit.

Why it ranks #5: The kit is listed for Honda CBR1000 RR models from 2006 to 2007 and specifies a 114-link 530VX chain with 16/42 gearing.

A D.I.D 530VX X-ring chain paired with 16/42 sprockets makes this kit a model-specific option for the 2006–2007 Honda CBR1000 RR. Its X-rings are described as keeping dirt out and lubrication in, connecting the chain’s sealing design to routine drivetrain maintenance.

The 114-link, 530VX chain is specified for the Honda CBR1000 RR from 2006 to 2007, and the kit’s 16-tooth front and 42-tooth rear sprockets provide the listed gearing. D.I.D’s X-rings twist between the side plates rather than being squished, which the product description says reduces friction and minimizes power loss. The sealing design is also described as keeping dirt out and lubrication in; high-carbon-steel rear sprockets are heat-treated for durability.

Skip it if you ride a Yamaha YZ250 and need a 520 non-O-ring chain; D.I.D’s MXY-001OEM+1 kit is listed for that model.

This D.I.D kit is aimed at owners of the listed 2006–2007 Honda CBR1000 RR who want 530VX X-ring construction and 16/42 gearing. Its stated model fit and 114-link chain are the primary application boundaries.

Listed on Amazon as: D.I.D (DKH-007G 530VX Gold Chain and 16/42T Sprocket Kit

#6

6. NICHE GSX750 Combo

• Weight: 8.3 lb

Best for: Suzuki GSX750 replacement.

Why it ranks #6: This set targets 1998–2003 Suzuki GSX750 fitment and specifies a 530HZ chain with 112 links and 15T/42T sprockets.

A 15-tooth front and 42-tooth rear sprocket combination is paired with a 112-link 530HZ chain for the 1998–2003 Suzuki GSX750. NICHE also identifies Suzuki OEM part references for the chain and sprockets, helping owners compare the package with their listed application.

NICHE specifies the GSX750 fit for model years 1998 through 2003, and the 15/42 sprockets and 112-link 530HZ chain define the included drive combination. Those model and chain details help narrow the kit to the stated motorcycle rather than a small-engine application. The sprockets use SAE 1023 structural carbon steel, while the listed LT-001A high-temperature chain oil adds a maintenance-related item to the package. Check the stated model range and drivetrain specifications against your intended replacement.

Skip it if you need a chain kit for a small 50cc-to-125cc ATV or go-kart; CMIYETO lists those applications.

This NICHE combo targets Suzuki GSX750 owners within the listed 1998–2003 range who want the stated 530 chain and 15/42 sprockets. Its model-year and drivetrain specifications are the key fit boundaries.

Listed on Amazon as: NICHE Drive Sprocket Chain Combo for Suzuki GSX750 Front 15 Rear 42 Tooth 530HZ Standard 112 Links

#7

7. Vortex 3-Ckg6134 Kit

• Weight: 8 lb

Best for: No-cut street gearing change.

Why it ranks #7: Its 520SX3-114 chain and 15/45 gearing are specified, but the supplied listing does not identify a vehicle fitment.

Vortex supplies this 520-114L kit ready to install without chain cutting, with 15/45 gearing in place of the stated 16/45 factory setup. That one-tooth front sprocket change gives riders a defined gearing adjustment while retaining the listed rear-tooth count.

The 520SX3 chain has 114 links and arrives ready to install without cutting, simplifying the chain-preparation step for a rider whose setup matches the kit. Vortex says its SV3 dual-pocket sealing system can deliver up to seven times the wear life of standard O-ring chains, a useful maintenance consideration for buyers comparing chain types. The kit changes factory gearing from 16/45 to 15/45 while keeping the rear at 45 teeth, so the front sprocket is the specified gearing change.

Skip it if you want factory 16/42 gearing and a 525 street chain; Vortex CK2136 lists both.

Pick this Vortex kit if your intended setup calls for 520 chain, 114 links, and the listed 15/45 gearing. Its no-cut installation and sealed-chain construction are useful considerations, but the 15-tooth front differs from the stated factory setup.

Listed on Amazon as: Vortex 3-Ckg6134 Sprocket/Chain Kit Stl/Stl 15/45T Sil Sx3 520-114L Gld

#8

8. CILOYU Mini Bike Kit

• Weight: 4.49 lb

Best for: Coleman mini-bike sprocket kit.

Why it ranks #8: The 40T sprocket and 420 chain target listed mini bikes and go-karts, with compatibility examples including Coleman CT200U and Predator 212.

A 40-tooth sprocket with a 40mm bore and a 420 chain defines this CILOYU mini-bike kit. Its listed applications include Coleman CT100U and CT200U variants, as well as Predator 212, 196cc, and 200cc engines, giving small-bike and go-kart owners specific fit references.

The 40T sprocket’s 40mm bore and included 420 chain provide the kit’s central drivetrain specifications. CILOYU lists compatibility with Coleman CT100U, CT200U, CT200U-EX, and BT200X models, alongside Baja, TrailMaster, Massimo, and Predator-powered mini bikes or go-karts. That range helps shoppers compare named machines, while the bore measurement is a key sprocket-side consideration. The product description also names Doodlebug DB30 and several additional mini-bike models, making it useful to owners checking those stated applications.

Skip it if you need a 13T/35T sprocket set for a 50cc-to-170cc vehicle; MRELC lists that combination.

This CILOYU kit suits mini-bike and go-kart owners whose application matches its named models and calls for a 40T, 40mm-bore sprocket with 420 chain. The bore and listed vehicle fit are the key boundaries.

Listed on Amazon as: Mini Bike Sprocket 40T 40mm Bore with 420 Chain for CT100U CT200U

#9 · Best T8F Option

9. Frdhee T8F Kit

• Weight: 1.13 lb

Best for: Modified kart T8F drive.

Why it ranks #9: The steel kit includes a T8F chain, 11T front sprocket and 44T rear sprocket for modified karts, ATVs and mini motorcycles.

An 11-tooth front and 44-tooth rear T8F sprocket set comes with a chain for modified karts, ATVs, and mini motorcycles. Frdhee describes the steel components as supporting power transfer between engine and wheels, making this a focused option for buyers seeking T8F parts.

The kit includes one chain, a T8F 11T front sprocket, and a T8F 44T rear sprocket, giving buyers a defined set of matching sprocket specifications. Frdhee lists modified karts, ATVs, and mini motorcycles as applications, so its stated scope is centered on those vehicle types rather than a named street motorcycle. The sprockets are steel, which the listing connects to power transfer and smooth transmission between engine and wheels. Confirm the intended drivetrain uses the listed T8F format.

Skip it if you need a stated chain length and small-engine 420 set; MRELC lists 120 links on its chain.

Choose this Frdhee kit for a modified kart, ATV, or mini motorcycle setup calling for T8F components and the listed 11/44 sprockets. The chain-length specification is not provided, so that remains an important selection boundary.

Listed on Amazon as: Chain Sprocket Kit, T8F Front and Rear Sprocket Chain Replacement High Power Steel T8F Gear Chain Set for Modified Karts ATVs and Mini Motorcycles

#10

10. RZEOZU MX650 Kit

• Weight: 3.5 lb

Best for: Razor MX650 drive upgrade.

Why it ranks #10: It is narrowly aimed at Razor MX650, MX500 and specified related models, with a motor-type and mounting-dimension check required.

Compatibility with Razor MX650 and MX500 electric dirt bikes, plus the stated MY1020 motor type, makes this RZEOZU kit a targeted upgrade choice. The listing also names the SX500 McGrath dirt bike and RSF650 pit bike, offering several specific applications to compare.

RZEOZU lists the kit for modified Razor MX650 and MX500 electric dirt bikes, SX500 McGrath dirt bikes, and RSF650 pit bikes. The motor detail is particularly relevant to installation: the listing says an MY1020 motor is suitable and gives mounting diameter measurements of 10 mm length and 8.5 mm width. Checking those stated motor measurements against the intended machine helps assess the motor-side mounting requirements before choosing this upgrade kit.

Skip it if you need a 40T sprocket with a 40mm bore for a Coleman mini bike; CILOYU lists that setup.

This RZEOZU kit fits buyers evaluating the listed Razor, SX500, or RSF650 applications, with MY1020 motor details central to the decision. Use its motor-type and mounting measurements as the main fit boundaries.

Listed on Amazon as: MX650 Dirtbike Chain and Sprocket Upgrade Kit Replacement for Razor