J's Racing Final Gear 4.7 gear ratio is shorter than the stock 4.1. A shorter gear increases the transferred torque to the ground for each gear. From mini race tracks to the medium speed race tracks, the shorter gear is frequently more effective. The 4.7 is for the drivers who have an aggressive driving style and also participate in Autocross racing.
A disulfide molybdenum coating has been applied on the surface which will dramatically improve the durability, heat generation characteristics, and quietness.
WARNING: Cancer and Reproductive Harm
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