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Pro Circuit Racing

PRO CIRCUIT Performance Piston Ring Set

SAVE 3%

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PRO CIRCUIT Performance Piston Ring Set - View 1

Product OverviewOEM Verified Specifications

Precision-machined ring geometry defines the upper limit of combustion chamber sealing efficiency. PRO CIRCUIT’s performance piston ring set is engineered with exacting tolerances to ensure optimal gas-tightness between the piston crown and cylinder wall, a critical factor in maintaining peak cylinder pressure during high-RPM operation. The metallurgical composition and cross-sectional profile of these rings are selected to withstand the extreme thermal and mechanical loads inherent in high-performance two-stroke and four-stroke powersports applications, ensuring that the top end maintains its structural integrity under sustained redline conditions. Optimized ring pack dynamics minimize blow-by and maximize volumetric efficiency. By reducing the escape of high-pressure combustion gases past the piston, this ring set directly contributes to improved torque delivery and power output across the entire rev range. The specific gap and land dimensions are calibrated to facilitate rapid ring seating and consistent oil control, preventing oil carry-over that can foul spark plugs or degrade catalytic converter performance in street-legal applications, while simultaneously ensuring the piston skirt remains properly lubricated to mitigate frictional losses. Enhanced durability and thermal stability extend the service life of the top end assembly. The material selection for these rings is designed to resist glazing, galling, and premature wear, even in the harsh environments of motocross, supercross, and track racing where heat rejection is a primary engineering challenge. Proper fitment ensures the rings operate within their designed clearance envelope, preventing seizure or breakage during aggressive throttle inputs, thereby providing the reliability required for competitive racing schedules and demanding trail use.

Product Classification

Engine Fastener & Bearing HardwareHARD PARTS > Motorcycle Engine Mechanical & Internals > Engine Hardware, Bearings & Fasteners

Unit / Package Weight

0.11 lbs (0.05 kg)

Discipline & Application

Hard Parts & Mechanical

$5.77

$5.95SAVE 3%

Available

Proceed to Checkout

Free US ShippingOrders over $150

30-Day ExchangesHassle-free size swap

Manufacturer WarrantyStandard Manufacturer Warranty

Product OverviewOEM Verified Specifications

Product Classification

Engine Fastener & Bearing HardwareHARD PARTS > Motorcycle Engine Mechanical & Internals > Engine Hardware, Bearings & Fasteners

Unit / Package Weight

0.11 lbs (0.05 kg)

Discipline & Application

Hard Parts & Mechanical

Pro Circuit Racing Technical Performance & Engineering

Key engineered features, technical highlights, and manufacturer specifications

Authentic Specifications

Key Engineered Features (6)

OEM Technical Standards

Precision-machined ring geometry defines the upper limit of combustion chamber sealing efficiency.** PRO CIRCUIT’s performance piston ring set is engineered with exacting tolerances to ensure optimal gas-tightness between the piston crown and cylinder wall, a critical factor in maintaining peak cylinder pressure during high-RPM operation
The metallurgical composition and cross-sectional profile of these rings are selected to withstand the extreme thermal and mechanical loads inherent in high-performance two-stroke and four-stroke powersports applications, ensuring that the top end maintains its structural integrity under sustained redline conditions
Optimized ring pack dynamics minimize blow-by and maximize volumetric efficiency.** By reducing the escape of high-pressure combustion gases past the piston, this ring set directly contributes to improved torque delivery and power output across the entire rev range
The specific gap and land dimensions are calibrated to facilitate rapid ring seating and consistent oil control, preventing oil carry-over that can foul spark plugs or degrade catalytic converter performance in street-legal applications, while simultaneously ensuring the piston skirt remains properly lubricated to mitigate frictional losses
Enhanced durability and thermal stability extend the service life of the top end assembly.** The material selection for these rings is designed to resist glazing, galling, and premature wear, even in the harsh environments of motocross, supercross, and track racing where heat rejection is a primary engineering challenge
Proper fitment ensures the rings operate within their designed clearance envelope, preventing seizure or breakage during aggressive throttle inputs, thereby providing the reliability required for competitive racing schedules and demanding trail use

End of Product Information

Complete Your Setup

Frequently Paired Accessories & Tools

BOLT

BOLT Euro Style Chain Slider Bushings

BANKS

BANKS EXTREME HUSKY HAULER

SUPERCLAMP

SUPERCLAMP Super-Glides II

KOLPIN

KOLPIN Lock-It-Rite ATV/UTV Truck Receiver System

KOLPIN

KOLPIN Lock-It-Rite ATV/UTV Trailer System

SUPERCLAMP

SUPERCLAMP Super-Glide Edge Rail Trim Kit

SUPERCLAMP

SUPERCLAMP Super-Glides II Screw Kit

HELIX

HELIX 100 Pack Cable Ties - White

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Factory Technical Reference

Verified Workshop Blueprints & Maintenance Specs

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Harley-Davidson · 2017–2024

Road Glide / Street Glide M8

Milwaukee-Eight 107/114/117ci

4.0 qt 20W-50 | Formula+ Primary | 80W-140 Trans

Yamaha · 2020–2025

Ténéré 700 (T7)

689cc CP2 Crossplane Twin

2.6 L 10W-40 | 525 Chain | 90/90-21 & 150/70R18

Honda · 2020–2025

CRF1100L Africa Twin

1084cc Unicam Parallel Twin

4.0L Manual / 4.2L DCT | SILMAR8A9S Iridium

Kawasaki · 2019–2025

Ninja ZX-6R (636)

636cc DOHC Inline-Four

3.6 L 10W-40 | 520 Chain (112L) | 127 N·m Axle

Polaris · 2019–2025

RZR XP 1000 / XP 4

999cc ProStar DOHC Twin

2.5 qt PS-4 5W-50 | AGL Trans | Demand Drive

Can-Am · 2018–2025

Maverick X3 Turbo / Turbo R

Rotax ACE 900cc Turbocharged

3.5 L 0W-40 | QRS-X CVT | 75W-140 Gearbox

Polaris · 2018–2025

General 1000 / XP 1000

999cc ProStar 100 HP Twin

2.5 qt PS-4 5W-50 | 122 N·m Lug | AGL Gearcase

Can-Am · 2020–2025

Defender HD10 / MAX

Rotax 976cc V-Twin 82 HP

2.2 L 5W-40 | 100 N·m Lug | PRO-TORQ CVT

Verified Technical Reference

Frequently Asked Questions

Consult the authentic option and part number matrix under the Technical Specifications and Fitment tab. You can match the authentic OEM Manufacturer Part Number (MPN) or ride model specifications to confirm exact compatibility.

Pro Circuit Racing

PRO CIRCUIT Performance Piston Ring Set

SAVE 3%

Photo 1 of 1 | Click to Enlarge

Product OverviewOEM Verified Specifications

Product Classification

Engine Fastener & Bearing HardwareHARD PARTS > Motorcycle Engine Mechanical & Internals > Engine Hardware, Bearings & Fasteners

Unit / Package Weight

0.11 lbs (0.05 kg)

Discipline & Application

Hard Parts & Mechanical

$5.77

$5.95SAVE 3%

Available

Proceed to Checkout

Free US ShippingOrders over $150

30-Day ExchangesHassle-free size swap

Manufacturer WarrantyStandard Manufacturer Warranty

Product OverviewOEM Verified Specifications

Product Classification

Engine Fastener & Bearing HardwareHARD PARTS > Motorcycle Engine Mechanical & Internals > Engine Hardware, Bearings & Fasteners

Unit / Package Weight

0.11 lbs (0.05 kg)

Discipline & Application

Hard Parts & Mechanical

Pro Circuit Racing Technical Performance & Engineering

Key engineered features, technical highlights, and manufacturer specifications

Authentic Specifications

Key Engineered Features (6)

OEM Technical Standards

Precision-machined ring geometry defines the upper limit of combustion chamber sealing efficiency.** PRO CIRCUIT’s performance piston ring set is engineered with exacting tolerances to ensure optimal gas-tightness between the piston crown and cylinder wall, a critical factor in maintaining peak cylinder pressure during high-RPM operation
The metallurgical composition and cross-sectional profile of these rings are selected to withstand the extreme thermal and mechanical loads inherent in high-performance two-stroke and four-stroke powersports applications, ensuring that the top end maintains its structural integrity under sustained redline conditions
Optimized ring pack dynamics minimize blow-by and maximize volumetric efficiency.** By reducing the escape of high-pressure combustion gases past the piston, this ring set directly contributes to improved torque delivery and power output across the entire rev range
The specific gap and land dimensions are calibrated to facilitate rapid ring seating and consistent oil control, preventing oil carry-over that can foul spark plugs or degrade catalytic converter performance in street-legal applications, while simultaneously ensuring the piston skirt remains properly lubricated to mitigate frictional losses
Enhanced durability and thermal stability extend the service life of the top end assembly.** The material selection for these rings is designed to resist glazing, galling, and premature wear, even in the harsh environments of motocross, supercross, and track racing where heat rejection is a primary engineering challenge
Proper fitment ensures the rings operate within their designed clearance envelope, preventing seizure or breakage during aggressive throttle inputs, thereby providing the reliability required for competitive racing schedules and demanding trail use

End of Product Information

Complete Your Setup

Frequently Paired Accessories & Tools

BOLT

BOLT Euro Style Chain Slider Bushings

BANKS

BANKS EXTREME HUSKY HAULER

SUPERCLAMP

SUPERCLAMP Super-Glides II

KOLPIN

KOLPIN Lock-It-Rite ATV/UTV Truck Receiver System

KOLPIN

KOLPIN Lock-It-Rite ATV/UTV Trailer System

SUPERCLAMP

SUPERCLAMP Super-Glide Edge Rail Trim Kit

SUPERCLAMP

SUPERCLAMP Super-Glides II Screw Kit

HELIX

HELIX 100 Pack Cable Ties - White

MPN
DPN1
SKU
UPC	Not Available
MMW
Package Shipping Weight	0.11 lbs
Shipping Box Dimensions	Not Available
Freight Classification Code	SFR
Model	Performance Piston Ring Set
Warranty Coverage	Standard Manufacturer Warranty

MPN
DPN1
SKU
UPC	Not Available
MMW
Package Shipping Weight	0.11 lbs
Shipping Box Dimensions	Not Available
Freight Classification Code	SFR
Model	Performance Piston Ring Set
Warranty Coverage	Standard Manufacturer Warranty