Spoon Sports S-TAI 3rd/4th/5th Gear Set Honda Civic Type R (FL5) K20C

SPOON SPORTS S-TAI 3rd/4th/5th Gear Set for Civic Type R FL5 K20C

Spoon Sports built their reputation on the track, and the S-TAI Gear Set is a direct result of that — born from transmission failures at Fuji Speedway's gruelling 24-hour endurance race. If you're pushing your Civic Type R hard on circuit, this is the gear set that was engineered for exactly that kind of punishment.

This listing covers the Spoon Sports S-TAI 3rd, 4th, and 5th gear set for the FL5 11th Generation Honda Civic Type R with the K20C engine. This is a direct replacement gear set designed for the factory manual transmission.

Note: The main shaft side and counter shaft side must always be installed as a matched set.

Key Features

• Developed and race-proven at Fuji Speedway's 24-hour endurance race — tested over 3,500 km without failure
• Bending fatigue strength improved by a factor of 30,000 over standard gears
• Pitching durability improved by 4 times over standard gears
• Optimised material composition balancing hardness and toughness — developed through surface and core hardness analysis
• Computer-aided geometry refinement for increased modular strength across gear teeth
• Slightly revised gear ratios for improved track performance
• 3rd gear ratio: 1.522 (standard: 1.529)
• 4th gear ratio: 1.125 (standard: 1.125 — unchanged)
• 5th gear ratio: 0.903 (standard: 0.911)
• Made in Japan by Spoon Sports

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, trim level, and configuration are confirmed before ordering.

Not sure if this gear set suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.