GX200 Crankshaft Specs and Fitment
Understanding crankshaft specifications ensures proper compatibility with your engine:
- Stock Stroke: Approximately 2.123 - 2.125 inches
- PTO Size: Must match your clutch or torque converter
- Rod Journal Size: Must match your connecting rod 1.180 MAX
- Engine Compatibility: GX200 and most 196cc clone engines
Matching these specs is essential for correct installation and long-term reliability.
OEM vs Performance Crankshafts (Know the Difference)
OEM GX200 crankshafts are designed for stock engine performance and reliability.
Unlike performance crankshafts:
- OEM crankshafts are not dynamically balanced for high RPM racing
- They are not intended for extreme performance builds
- They are designed for standard operating conditions and longevity
If you are building a high-performance or racing engine, a billet or performance crankshaft may be required. For standard rebuilds and everyday use, OEM crankshafts are the correct choice.
Compatible Engines and Applications
GX200 crankshafts are widely used in:
- Honda GX200 engines
- 196cc clone engines
- Go-karts and minibikes
- Utility and recreational small engines
They are ideal for restoring engines used in both work and recreational applications.
Why Choose GX200 Crankshafts
Crankshafts are manufactured for consistency and reliability:
- Built to OEM specifications for proper fitment
- Trusted for engine rebuilds and replacements
- Designed for durability in standard operating conditions
Our components are relied on by engine builders and small engine enthusiasts who need dependable parts that fit correctly and perform as expected.
Find the Right GX200 Crankshaft for Your Engine
Choosing the correct GX200 crankshaft ensures your engine runs properly and reliably.
Whether you're completing a rebuild or replacing a damaged component, ARC Racing offers OEM-quality crankshafts designed for straightforward installation and long-term use.
GX200 Crankshaft FAQ
What does a GX200 crankshaft do?
It converts the up-and-down motion of the piston into rotational force to power the engine.
What is the stock GX200 crankshaft stroke?
Approximately 2.123 - 2.125 inches.
Are OEM crankshafts balanced?
OEM crankshafts are manufactured to factory balance standards but are not dynamically balanced like performance crankshafts.
Do I need a performance crankshaft?
For standard use and rebuilds, an OEM crankshaft is the best choice.
Predator 79cc Billet Flywheels for Performance Builds
ARC Racing billet flywheels designed for Predator 79cc engines provide the strength and reliability required for performance minibike and kart engine builds. These flywheels are precision-machined from billet aluminum and SFI certified to ensure safe operation in engines running at higher RPM.
Factory cast flywheels are not designed for sustained high-RPM operation. ARC billet flywheels replace these cast components with a high-strength billet aluminum flywheel that provides improved durability, stable ignition timing, and consistent spark performance for modified engines.
Compatible Engine Platform
- Predator 79cc (Harbor Freight)
The Predator 79cc engine is commonly used in minibikes, small go-karts, and recreational performance builds. ARC billet flywheels provide consistent ignition timing and improved durability compared to factory cast flywheels.
Why Choose ARC Billet Flywheels?
- Precision-machined billet aluminum construction
- SFI certified for racing safety
- Strong rare-earth magnets for reliable ignition timing
- Designed for high-RPM small engine builds
- Trusted by racers and engine builders worldwide
Whether you're upgrading a minibike engine or building a small racing engine, ARC Racing billet flywheels provide the strength, ignition stability, and reliability serious builders demand.
Predator 79cc Billet Flywheels – Frequently Asked Questions
Why upgrade to a billet flywheel?
Billet flywheels are significantly stronger than stock cast flywheels. Upgrading to an ARC billet flywheel improves ignition stability and provides safer operation in engines running at higher RPM.
Are ARC billet flywheels SFI certified?
Yes. ARC Racing billet flywheels are SFI certified, meaning they meet recognized safety standards for high-performance small engine applications.
What engines do Predator 79cc flywheels fit?
These flywheels are designed specifically for the Harbor Freight Predator 79cc engine and are not compatible with GX200, clone, or Predator 212 engines.
Will a billet flywheel increase horsepower?
A billet flywheel does not directly create horsepower, but it improves ignition stability and allows engines to safely operate at higher RPM in performance applications.
Are Predator 79cc engines used in performance builds?
Yes. Predator 79cc engines are commonly used in minibikes and small go-kart builds. Performance upgrades such as billet flywheels help improve durability and reliability in modified engines.