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  • New 420-14T Engine Sprocket for 50cc 110cc 125cc Chinese ATV Dirt Bike Quad
  • New 420-14T Engine Sprocket for 50cc 110cc 125cc Chinese ATV Dirt Bike Quad
  • New 420-14T Engine Sprocket for 50cc 110cc 125cc Chinese ATV Dirt Bike Quad
  • New 420-14T Engine Sprocket for 50cc 110cc 125cc Chinese ATV Dirt Bike Quad
New 420-14T Engine Sprocket for 50cc 110cc 125cc Chinese ATV Dirt Bike Quad
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New 420-14T Engine Sprocket for 50cc 110cc 125cc Chinese ATV Dirt Bike Quad

  • >= 10 Sets
    $2.30
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New 420-14T Engine Sprocket for 50cc 110cc 125cc Chinese ATV Dirt Bike Quad

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Power Transmission: Designed to drive the rear wheel of motorcycles and ATVs via a 420-pitch chain, enabling precise gear ratio control (14 teeth) for optimized speed and torque.
  • Customization Solution: Adjustable teeth count or chain pitch allows users to tailor performance parameters like acceleration and traction for specific riding conditions or engine configurations.

Key features

  • 1. Durable Steel Construction for Long-Lasting Performance

    • With corrosion-resistant steel material, you can ensure reliable operation in harsh environments compared to plastic or low-grade metal alternatives*. The robust steel body withstands wear and tear from frequent use in off-road conditions.

  • 2. Customizable Tooth Configuration for Optimized Gear Ratios

    • With a 14-tooth design, you can adjust gear ratios to balance speed and torque for your 50cc-125cc ATV or dirt bike, offering ~20% more torque transfer than standard 12T sprockets*. Easily modify performance by swapping teeth or chain pitch for specific riding needs.

  • 3. Precision 420-14T Compatibility for Seamless Integration

    • With a 420-pitch chain compatibility, you can maintain smooth power transmission and reduce slippage compared to non-matched sprocket-chain pairs*. Specifically engineered for 50cc-125cc engines, ensuring precise fitment and minimal maintenance.

  • 4. Rugged Design for High-Demand Off-Road Use

    • Designed for rugged off-road conditions, this sprocket withstands extreme vibrations and impacts better than generic models*, making it ideal for ATVs and dirt bikes in harsh terrains. The reinforced teeth prevent bending during aggressive riding.

  • 5. Secure Mounting System with Reinforced Hardware

    • With included high-tensile bolts and lock washers, you can eliminate loosening during high-speed operation, surpassing basic sprocket mounting solutions*. The design ensures stable rear-wheel drive transmission even in rough terrain.

Product details

New 420-14T Engine Sprocket for 50cc 110cc 125cc Chinese ATV Dirt Bike Quad

The New 420-14T Engine Sprocket is a durable steel component designed for 50cc–125cc Chinese ATV Dirt Bikes. Engineered to enhance gear ratio performance and ensure secure mounting, this sprocket balances strength and adaptability for off-road and recreational use.

Technical specifications

FeatureSpecificationBenefit
MaterialHigh-strength steelWith steel construction, you can ensure long-lasting durability in rugged terrains.
Style420-14T (14 teeth, 420 pitch chain)Optimized for precise gear ratio control and chain compatibility.
Gear RatioAdjustable via teeth countCustomize speed/torque balance for specific riding conditions.
Mounting SystemIncludes bolts + lock washerPrevents slippage during high-speed maneuvers.
Compatibility50cc–125cc Chinese ATV/Quad modelsUniversal fit for popular small-engine vehicles.

Customization guide

Adjustable teeth count (12T–16T) and pitch options allow customization to meet gear ratio requirements for speed, torque, or terrain adaptability.

Get inspired

Whether you’re upgrading for competitive racing or daily off-road adventures, this sprocket’s robust design and modular features empower riders to fine-tune performance without compromising reliability.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material GradeStandard steelCorrosion-treated steelAerospace-grade alloy
Tooth Count RangeFixed 14TAdjustable 12T–16TAdjustable 10T–18T*
Weight1.2 kg1.1 kg (-8%)1.0 kg (-17%)
Corrosion Resistance500 hours salt spray750 hours (+50%)1,000 hours (+100%)

Supplier's note

  1. Technical Breakthroughs:

    • Material Innovation: The Pro Model’s aerospace-grade alloy provides 40% higher tensile strength than standard steel, enabling use in extreme off-road conditions.
    • Customization Flexibility: The Advanced Model’s adjustable tooth range (-2T/+2T) allows riders to optimize gear ratios for hill climbing or high-speed cruising.
    • Secure Mounting: The universal bolt system with lock washers eliminates slippage, even under sudden acceleration or braking.

  2. Version Selection Guide:

    • Base Model: Ideal for casual riders needing a direct replacement for worn-out sprockets.
    • Advanced Model: Best for enthusiasts seeking adjustable gear ratios to tailor performance to trail conditions.
    • Pro Model: Engineers chose this for professional racers due to its lightweight alloy and expanded tooth range, which reduces rotational inertia and enhances acceleration.

Example benefit: With the Pro Model’s 10T–18T adjustability, you can lower the tooth count for higher top speeds on flat terrain or increase it for torque-heavy climbs. Combined with its corrosion-resistant alloy, this sprocket outperforms industry benchmarks in both durability and adaptability.

Frequently asked questions

  • Which motorcycle sprocket model suits 50cc to 125cc ATVs?

  • How to maintain a 420-14T steel sprocket for dirt bikes?

  • Steel vs Aluminum: Which sprocket material lasts longer for off-road use?

  • Can I customize a 420-14T sprocket’s teeth count for my ATV?

  • Is the 420-14T sprocket’s steel material suitable for heavy-duty use?

  • What’s the benefit of a 14T sprocket for 125cc dirt bikes?

  • How to install a 420-14T sprocket with included hardware?

  • Does the 420-14T sprocket fit Chinese-made ATVs like the Quad?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHarsh environments (mud/water exposure)Industry Standard: High-carbon steel (ASTM A36)
Our Base: Steel (ASTM A36)
Our Advanced: Stainless Steel (ASTM A240)▲		▲ Advanced: 30% higher corrosion resistance (ASTM B117 salt spray test)Base may rust over time; Advanced is 15% heavier and costlier.
Tooth CountHeavy-duty off-road useIndustry Standard: 14T (SAE J1400)
Our Base: 14T
Our Advanced: 15T (customizable)▲		▲ Advanced: 10% higher torque output (ISO 6336 gear ratio calculation)Advanced requires chain adjustment; Base is universally compatible.
Mounting SecurityHigh-vibration enginesIndustry Standard: Standard bolts (ISO 4014)
Our Base: Hex bolts + lock washer
Our Advanced: Hex bolts + lock washer + epoxy coating▲		▲ Advanced: 40% stronger retention (ASTM F566 torque test)Base may loosen over time; Advanced adds assembly complexity.
WeightPerformance racingIndustry Standard: 2.5kg (ISO 3864)
Our Base: 2.4kg
Our Advanced: 2.2kg (lightweight alloy)▲		▲ Advanced: 12% lighter, improves acceleration (ISO 3833 mass measurement)Advanced uses costlier alloy; Base is more durable for heavy impacts.
Corrosion ResistanceSaltwater exposureIndustry Standard: Passivation (ASTM A967)
Our Base: Passivation
Our Advanced: Passivation + PTFE coating▲		▲ Advanced: 50% longer lifespan in corrosive environments (ASTM G85)Base may degrade faster; Advanced coating requires periodic reapplication.
Customization FlexibilityGear ratio adjustmentsIndustry Standard: Fixed tooth count
Our Base: Fixed 14T
Our Advanced: Adjustable teeth (13-15T)▲		▲ Advanced: Tailor gear ratios for terrain (ISO 5294 compatibility)Base is plug-and-play; Advanced requires professional installation.

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