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DJ-2172-X Offset Key for Clone/GX200-390
ARC Racing DJ-2172-X offset flywheel key designed for GX200, GX390, clone, and Predator engines. Available in multiple degree options, this precision key allows you to advance ignition timing for improved performance and throttle response in kart racing and small engine builds. See full product details below.
DJ-2172-X Offset Flywheel Key – GX200 / GX390 / Clone / Predator
The ARC Racing DJ-2172-X offset flywheel key is a simple and effective way to adjust ignition timing on popular small engine platforms. Designed for Honda GX200 through GX390, 196cc clone engines, and Predator engines, this precision-machined key allows you to advance timing for improved engine performance.
By changing the relationship between the crankshaft and flywheel, an offset key advances ignition timing, helping the spark occur earlier in the combustion cycle. This can improve throttle response and overall engine efficiency, especially in high-RPM kart racing applications.
The DJ-2172-X series is available in multiple degree options, allowing builders to fine-tune timing based on engine setup, fuel type, and camshaft selection.
Important: This timing key is designed for use with stock-style crankshafts and flywheel setups and will not work with ARC billet crankshafts.
Key Features
- Precision offset design to advance ignition timing
- Available in multiple degree options (2°, 4°, 6°, 8°)
- Fits GX200 through GX390 engine platforms
- Compatible with most 196cc clone and Predator engines
- Helps improve throttle response and performance
- Simple installation with standard flywheel removal
- Ideal for kart racing and performance engine tuning
Fitment
- Honda GX160 / GX200 / GX270 / GX390
- 196cc Clone Engines
- Predator 212 / 224
- Ducar and Tillotson clone platforms
Important Fitment Notice: This offset key is designed for stock-style crankshafts and flywheel setups. It will NOT work with ARC billet crankshafts.
Frequently Asked Questions
What does an offset flywheel key do?
An offset flywheel key changes the position of the flywheel on the crankshaft, advancing ignition timing so the spark occurs earlier in the combustion cycle for improved performance.
What engines does the DJ-2172-X key fit?
This key fits Honda GX160, GX200, GX270, GX390, 196cc clone engines, and most Predator engine platforms.
What degree key should I choose?
Common options include 2°, 4°, 6°, and 8° keys. The correct choice depends on your camshaft, fuel, and engine setup. Higher degree keys provide more timing advance.
Will this work with ARC billet crankshafts?
No. This offset key is not designed for use with ARC billet crankshafts.
Does an offset key increase horsepower?
Advancing ignition timing can improve combustion efficiency, which may increase throttle response and overall engine performance when properly tuned.
Compatible Engine Platforms
- Honda GX160 / GX200 / GX270 / GX390
- 196cc Clone Engines
- Predator 212 / 224
- Ducar Engines
- Tillotson Engines
Complete your engine build with ARC Racing performance components including billet flywheels, billet connecting rods, billet crankshafts, and ignition components designed for GX200, Predator, and clone engines in kart racing and high-RPM performance applications.