3Racing SAK-F70 FFEX 17T Aluminium Pinion Race Upgrade  [SAK-F70]

3RACING FFEX Aluminum Pinion Gear 8 pitch 17T( 4mm) For KIT-FFEX - SAK-F70
Price:
USD$5.00
Brand:
3Racing
Model:
SAK-F70
Condition:
Brand New
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Race focused pinion for precise gearing

The 3Racing FFEX Aluminum Pinion Gear SAK-F70 is engineered for the KIT-FFEX to provide a consistent, lightweight option for race tuning. CNC style machining tolerances and an 8 pitch 17 tooth profile make this pinion a predictable component for setup work.

Technical advantages for competitive setups

Aluminium minimises rotating inertia and aids throttle response without significant weight penalty. The 17T choice allows fine tuning of final drive ratio to suit specific track demands while maintaining robust tooth engagement.

Integration and setup guidance

Designed to match the 3Racing FFEX chassis drive geometry, the SAK-F70 fits the factory layout for straightforward installation. For optimal performance use proper mesh shimming and verify runout to ensure even tooth contact under load.

What gear ratio changes should I expect with 17T?

Switching to a 17T pinion reduces top ratio compared with larger pinions and increases acceleration. Use track testing to refine the final ratio for optimal lap times.

How do I verify correct pinion mesh under race conditions?

Set initial mesh with a thin shim and run the system at low speed to inspect contact pattern. Adjust until contact is centred on the tooth face and recheck after a brief run in.

Any maintenance tips for extending performance life?

Keep the gearbox clean, use light gear oil or grease recommended for 8 pitch gears, and inspect the pinion and spur for early signs of fatigue. Replace at first evidence of pitting to protect the spur.