*Supporting the vehicle weight and transmitting longitudinal and lateral forces during riding, it ensures a stable connection between the rear wheel and frame. Working in conjunction with the rear shock absorber, it controls the rear wheel's vertical movement, maintaining tire contact with the ground and steering precision. On chain-drive models, the rear fork must provide stable support for the rear wheel and reduce vibration during power transmission.

*Aluminum alloy has a density approximately one-third that of steel. Improved rear fork design significantly reduces the unsprung weight around the rear wheel (the weight of the parts not supported by the shock absorber), reducing inertial load on the suspension system. This improves tire contact with the ground by the shock absorber, improving cornering agility and road surface absorption.

*Lightweight components reduce the overall vehicle weight, indirectly improving acceleration and fuel economy. This is particularly suitable for models designed for urban commuting and light sports use, such as the NMAX155.

*Forged or CNC-machined aluminum alloy rear forks are lightweight yet maintain structural strength, withstanding impacts and torsional forces during riding. They also have superior corrosion resistance compared to conventional steel components, making them suitable for long-term outdoor use.