Constructed from A7009-T6 aluminum, the ZETA Stem Cap features a lightweight design intended to seal the stem shaft against dirt and mud, thereby preventing internal rust accumulation. This protective component is engineered for durability in off-road environments, ensuring the integrity of the steering column by keeping contaminants out of the critical internal mechanisms.
The cap utilizes internal leaf springs to secure its position within the stem shaft, maintaining a firm fit even during hard riding conditions. With a compatible inner diameter range of 13 mm to 17.5 mm, this part is designed to fit the majority of dirt, supermoto, and dual sport motorcycles, offering a versatile solution for riders seeking to protect their steering components from environmental wear.