SPOON SPORTS now offers the S-TAI 3rd-4th-5th GEAR SET for the 11^th Generation CIVIC TYPE R (FL5).

This product is a must have for heavy track driving users!
Track driving exposes your gears to a lot of stress. Increasing the durability of the gears directly links to the reliability of your transmission. After extensive analysis, we’ve redesigned the gears from the ground up, looking into material, its hardness and geometry for significantly improved durability.

Cutting the gears during development, we analyzed surface and core hardness of the gears, studying the effective hardness layers as well as its material composition.

 As a result, we were able to find the optimal material balance of hardness and toughness. Further computer analysis of the gears revealed ways to increase the modular strength of the gears and its gear teeth.

Overall, we were able to improve the bending fatigue strength by a factor of 30,000 and the pitching durability by 4 times.

The development of the gears began from a bitter experience of blowing the transmission twice during the 24 hours endurance race at Fuji Speedway. R&D began immediately after the troubled race, utilizing the last 3 races of the season to evaluate the shifting feel and durability. The newly designed gears were race tested for over 3,500km without any issues. The following season, we were able run the 24 hours endurance race at Fuji Speedway trouble-free, allowing us to feel confident to offer this product to our customers.

Proven on track, this gear set is for our valued customers that demand nothing less than true performance, durability and reliability.

Note: Always use the main shaft side and counter shaft side as a set.

Gear Ratio
Reinforced Gear/SPOON gear
3rd/3rd:1.522
4th gear/4th:1.125
5th/5th:0.903

STD gear/STD gear
3rd/3rd: 1.529
4th/4th: 1.125
5th/5th: 0.911