Best Auto Clutch For Dirt Bike: Compare 10 Semi-Auto Clutches

#1 · Best Overall

1. 1PZ 17 Teeth Clutch

• Weight: 3.2 lb
• Package Dimensions: 5.04 x 4.92 x 3.03 in

Best for: 17-tooth Chinese-engine replacement.

Why it ranks #1: Lists 50cc–135cc fitment for semi-automatic engines, a 17-tooth gear, and a 4-1/2-inch diameter for checking compatibility.

The 17-tooth drive gear and 4.5-inch assembly diameter give this 1PZ clutch a concrete starting point for owners of listed semi-automatic reverse engines. Its stated range covers 50cc, 110cc, 125cc, and 135cc ATVs, dirt bikes, and go-karts, including several Chinese brands.

The listed fit for TaoTao, Buyang, Coolsport, Lifan, Kazuma, and SUNL makes this a candidate for a broad set of Chinese-brand machines, while the semi-automatic reverse-engine requirement narrows the application meaningfully. Its iron construction is described as wear-resistant and able to dissipate heat quickly, which supports use where clutch wear and heat are relevant operating concerns. The package includes one assembly; the listing does not describe a hardware kit or installation steps.

Skip it if you have a manual-style clutch or an engine outside the listed 50cc–135cc range; the application is specifically semi-automatic reverse.

This suits owners replacing a 17-tooth clutch on a listed Chinese-brand semi-automatic reverse engine, particularly across the stated ATV, dirt-bike, and go-kart uses. Check engine type and drive-gear match before choosing it; the listing does not specify included installation hardware.

Listed on Amazon as: 1PZ 17 Teeth Semi Automatic Clutch Assembly for 50cc 110cc 125cc 135cc ATV Quad Go Kart Dirt Bike Roketa Kazuma JCL NST SUNL Taotao

#2 · Best Dimension Details

2. X-PRO Auto Clutch

• Weight: 3.45 lb

Best for: Measured X-PRO replacement.

Why it ranks #2: Covers most Chinese 50cc–125cc bikes and lists a 17mm inside diameter, 116mm outside diameter, and 42 x 60mm bolt spacing.

X-PRO provides three useful fitment measurements—17-tooth gear, 17mm inside diameter, and 116mm outside diameter—so buyers can compare this clutch against an existing assembly. It is listed for most Chinese 50cc–125cc dirt bikes, go-karts, and ATVs, including several named brands.

The 42 x 60mm bolt-hole spacing adds another concrete comparison point alongside the inside and outside diameters, helping a buyer check the mounting layout before beginning a replacement. X-PRO lists compatibility with most Chinese 50cc–125cc machines and names applications such as Taotao, SunL, JCL, Kandi, and Kinroad. Because the fit is described as applying to most vehicles rather than every one, the measurements matter when narrowing down the correct assembly.

Skip it if you cannot compare your clutch's measurements or your vehicle is outside the stated Chinese 50cc–125cc applications.

This is a practical candidate for owners who can compare gear count, diameters, and bolt-hole spacing on a Chinese 50cc–125cc ATV, go-kart, or dirt bike. Use the measurements as fit checks; the listing does not claim universal compatibility.

Listed on Amazon as: X-PRO Auto Clutch for 50cc-125cc Dirt Bikes, Go Karts, ATVs

#3 · Best Hardware Kit

3. AuInLand 17 Teeth Clutch

• Weight: 1.53 kg

Best for: Complete-kit reverse-engine service.

Why it ranks #3: Fits automatic 50cc–125cc applications, specifies 17 teeth and clutch diameters, and includes a gasket, bearings, spring, and fasteners.

A complete clutch kit with gasket, bearings, spring, screws, bolts, washers, and spacers is the defining advantage of this AuInLand assembly. It is listed for automatic engines and most 50cc–125cc ATVs, dirt bikes, and go-karts with automatic reverse, giving repair-minded buyers more than the clutch alone.

The 17-tooth drive gear and stated 4.57-inch outer diameter and 0.68-inch inner-hole diameter provide concrete checks before installation. The included hardware can support a repair workflow that needs the listed small parts alongside the assembly, rather than sourcing each separately. AuInLand describes it as a heavy-duty, Honda-style automatic clutch kit, while its specifications also call operation semi-automatic; buyers should treat engine and clutch type as key fit checks.

Skip it if you need a listing with unambiguous clutch-mode wording; TRKIMAL's semi-automatic description is clearer about its stated type.

This kit suits owners servicing a listed 50cc–125cc reverse-engine ATV, dirt bike, or go-kart who value included hardware and measurable dimensions. The automatic versus semi-automatic wording is a real boundary, so verify the engine type before installation.

Listed on Amazon as: Clutch Assembly 17 Teeth Fit For Auto 50cc-125cc Engine Dirt Bikes ATV Go-Kart Taotao Kazuma

#4

4. TRKIMAL Semi Auto Clutch

• Weight: 3.32 lb
• Package Dimensions: 5.94 x 4.53 x 3.39 in

Best for: Type-conscious 17-tooth replacement.

Why it ranks #4: Its 17-tooth gear is listed for 50cc–135cc engines and common dirt-bike, ATV, and go-kart applications; it warns against manual-style use.

A clearly stated 17-tooth drive gear makes the TRKIMAL clutch a targeted option for listed semi-automatic engines from 50cc through 135cc. The product description names dirt bikes, ATVs, and go-karts, while its explicit manual-clutch exclusion helps buyers rule out an incompatible clutch type.

TRKIMAL lists 50cc, 110cc, and 125cc semi-automatic engines in its key fit details, and the title extends the stated range to 70cc, 90cc, and 135cc. That combination gives buyers several engine sizes to check against their machine, but the type requirement remains essential: the listing expressly says it is not for manual-style clutches. The 17-tooth gear is specified, while dimensions and included installation hardware are not provided.

Skip it if you use a manual-style clutch or need stated measurements to compare; the listing supplies neither manual compatibility nor clutch dimensions.

Choose this for a 17-tooth replacement when your dirt bike, ATV, or go-kart has a compatible semi-automatic engine in the listed range. Its clearest boundary is clutch type: it is expressly not for manual-style clutch systems.

Listed on Amazon as: TRKIMAL Semi Auto Clutch Assembly 17Teeth For 50cc 70cc 90cc 110cc 125cc 135cc Engine Dirt Bikes ATV Quad Go-Kart Taotao Kazuma (17Teeth)

#5

5. CLEO 17 Teeth Clutch

• Weight: 3.47 lb
• Package Dimensions: 5.35 x 5.28 x 2.68 in

Best for: 17T measurement-check replacement.

Why it ranks #5: A clearly specified 17-tooth assembly for semi-automatic 50cc–125cc engines; the listing cautions buyers to distinguish it from an 18-tooth clutch.

CLEO makes the tooth-count distinction explicit: this semi-automatic clutch uses a 17-tooth drive gear, not an 18-tooth one. It is listed for 50cc–125cc engines in dirt bikes, ATVs, and go-karts, while the listing recommends checking pictures and measurements for application fit.

The specified semi-automatic engine type and 17-tooth gear help narrow down compatibility before a repair, especially when replacing an assembly whose tooth count is known. CLEO also calls out the difference from an 18-tooth clutch, a useful warning for buyers comparing similar-looking parts. Its fit range is 50cc–125cc, but the supplied listing gives no diameter, bolt pattern, or included-hardware details, making picture and measurement checks important.

Skip it if you need an 18-tooth clutch; this one is explicitly 17T, while 1PZ's B0D1BWR3VK listing specifies 18 teeth.

Pick CLEO when your semi-automatic 50cc–125cc application calls for a 17-tooth assembly and you can verify its pictured measurements. It is not the choice for an 18-tooth setup, and dimensions are not supplied in the listing details.

Listed on Amazon as: CLEO Clutch Assembly 17 Teeth For Semi Auto 50cc-125cc Engine Dirt Bikes ATV Go-Kart Taotao Kazuma

#6

6. CNHEQIW 17T Clutch

• Weight: 3.47 lb
• Package Dimensions: 8.98 x 5.59 x 2.8 in

Best for: Iron 17T broad-range replacement.

Why it ranks #6: Lists fitment for 50cc–135cc semi-automatic engines and several Chinese ATV and dirt-bike brands, with iron construction described.

CNHEQIW pairs a 17-tooth semi-automatic clutch with a stated 50cc–135cc engine range, spanning several common small powersports sizes. Its iron-alloy construction is described as wear-resistant and heat-dissipating, while the title and features name ATVs, dirt bikes, go-karts, and Chinese brands.

The listed compatibility with TaoTao, Kazuma, SUNL, and Roketa gives owners concrete brand names to compare with their vehicle, while the 50cc, 70cc, 90cc, 110cc, 125cc, and 135cc range helps narrow engine fit. CNHEQIW describes the assembly as a direct OEM replacement and says necessary accessories are included, which can simplify planning a replacement. The 17-tooth gear and semi-automatic requirement remain important checks before fitting.

Skip it if you need an itemized accessory list before starting the job; the included accessories are not identified individually in the supplied details.

This suits owners replacing a 17-tooth clutch on a listed Chinese-brand semi-automatic ATV, dirt bike, or go-kart, with iron construction and an OEM-replacement claim. Check engine size and clutch type; included accessories are not itemized.

Listed on Amazon as: 17T Semi Auto Clutch for 50cc-135cc ATV Dirt Bike Go Kart

#7

7. ZTDZZH 17 Teeth Clutch

• Weight: 3.39 lb
• Package Dimensions: 5.87 x 5.71 x 3.07 in

Best for: 17T semi-auto dirt-bike fit.

Why it ranks #7: Specifies a 17-tooth gear for semi-automatic 50cc, 110cc, and 125cc engines, but provides less dimensional detail than higher-ranked options.

ZTDZZH specifies a 17-tooth drive gear for semi-automatic engines, making clutch type and tooth count the key checks for this replacement. Its title names 50cc, 70cc, 90cc, 110cc, and 125cc dirt-bike engines and references Kazuma, Taotao, and SUNL applications.

The stated fit for 50cc, 110cc, and 125cc semi-automatic engines gives a narrower confirmed range than the title's broader list, so buyers should use their engine details rather than assume every size is covered. The 17-tooth requirement is explicit, and the listing expressly excludes manual-style clutches. It also directs buyers to consult the product pictures and description, a useful step because no clutch dimensions or installation hardware are specified in the supplied details.

Skip it if you have a manual-style clutch or require measured dimensions; CLEO's listing at least directs buyers to compare pictures and measurements.

This is for owners seeking a 17-tooth semi-automatic clutch for a listed small-engine dirt bike and named Chinese-brand applications. Confirm the engine range and clutch type from your machine details; the supplied listing offers no dimensions for a direct measurement comparison.

Listed on Amazon as: 17 Teeth Clutch Assembly Fit Semi Auto 50cc 70cc 90cc 110cc 125cc Dirt Bike Engine kazuma taotao sunl

#8

8. hauertzx 17T Clutch

• Weight: 3.52 lb
• Package Dimensions: 5.39 x 5.39 x 2.56 in

Best for: Accessory-included 17-tooth option.

Why it ranks #8: The title identifies a 17-tooth semi-automatic assembly with accessories for 50cc–135cc engines, though its specification details are limited.

The title identifies a 17-tooth semi-automatic clutch assembly supplied with accessories, making this hauertzx option relevant to owners servicing listed small-engine powersports vehicles. Its stated application spans 50cc to 135cc ATV, quad, go-kart, and dirt-bike engines, with several named brands.

The listed engine range includes 50cc, 70cc, 90cc, 110cc, 125cc, and 135cc, giving buyers a range to compare with their machine before planning a replacement. The title also names Roketa, Kazuma, JCL, NST, SUNL, and Taotao, which helps identify intended vehicle families. However, the supplied details do not define the accessories, assembly dimensions, or installation procedure, so the title alone cannot settle a close fitment question.

Skip it if you need specified dimensions or a parts-by-parts accessory list; the supplied details identify neither for this assembly.

Consider it for a listed 17-tooth semi-automatic replacement across the named small-engine powersports applications. It may suit buyers whose machine and engine range match the title, but the brief product details leave dimensions and accessory contents unspecified.

Listed on Amazon as: 17T Semi Automatic Clutch Assembly with Accessories for 50cc 70cc 90cc 110cc 125cc 135cc ATV Quad Go Kart Dirt Bike Engine,Powersports Clutches for Roketa Kazuma JCL NST SUNL Taotao (17T)

#9

9. Ouyunou 17T Clutch

• Weight: 8 oz
• Package Dimensions: 2.99 x 2.98 x 2.98 in

Best for: Reverse ATV and YX fit.

Why it ranks #9: Specifically lists YX and Lifan 110cc and 125cc reverse ATV engines, but gives narrower fitment than the broader dirt-bike listings.

Compatibility with YX and Lifan 110cc or 125cc reverse ATVs, plus Honda-style 4-stroke horizontal-cylinder engines, defines this Ouyunou 17-tooth clutch. The listing also identifies Chinese 50cc–125cc engines, giving ATV and pit-dirt-bike owners a focused set of applications to check.

The specific YX and Lifan 110cc–125cc reverse-ATV wording helps owners narrow the search by engine family and reverse configuration, while the Honda-style horizontal-cylinder description adds another stated application. The product is a single 17-tooth semi-automatic clutch, not a hardware kit. Supplied facts exclude manual-style clutches and handlebar-mounted clutch levers, so this is aimed at semi-automatic setups rather than lever-operated manual systems.

Skip it if you operate a manual clutch with a handlebar-mounted lever; the listing expressly excludes that setup.

Choose this for a compatible reverse ATV or semi-automatic pit dirt bike in the stated engine families, particularly YX or Lifan 110cc–125cc. It is not suited to lever-operated manual clutches, so clutch operation type is the essential boundary.

Listed on Amazon as: 17T Semi-automatic Clutch For YX Lifan 110cc 125cc Reverse ATV Quad And Honda Style 4-stroke Horizontal Cylinder Engines

#10

10. 1PZ 18 Teeth Clutch

• Weight: 3.39 lb
• Package Dimensions: 5.83 x 5.39 x 2.56 in

Best for: 18T semi-auto replacement.

Why it ranks #10: Its 18-tooth drive gear and semi-automatic 50cc–135cc fitment may suit a matching engine, but it is a poor match when replacing a 17T clutch.

An 18-tooth drive gear sets this 1PZ clutch apart from the many 17-tooth options in this roundup. Its stated semi-automatic application covers most 50cc–135cc motorcycles, ATVs, dirt bikes, and go-karts, with outer diameter, inner-hole diameter, and spline size also provided.

The 116mm outer diameter, 10mm inner-hole diameter, and φ15×φ17 spline size give buyers specific measurements to compare with the old clutch before removal. The listing describes a complete set and says installation involves removing the old part and installing the replacement, supporting a straightforward swap workflow. Its 18-tooth gear remains the central compatibility boundary: the stated vehicle and engine range does not make it interchangeable with a 17-tooth assembly.

Skip it if you require a 17-tooth gear; CLEO's B07WX1YRGZ clutch is explicitly 17T rather than this 18T assembly.

This suits owners replacing an 18-tooth clutch on a listed semi-automatic vehicle who can match the supplied diameter and spline measurements. Avoid it when the original drive gear is 17T; tooth count is a decisive fit boundary.

Listed on Amazon as: 1PZ Semi Auto Clutch Assembly 18 Teeth for 50cc 70cc 90cc 110cc 125cc 135cc