vintage leather motorcycle kidney belt

Over the years, Japanese manufacturers have made significant strides in V-belt technology. The introduction of high-strength materials, improved manufacturing processes, and innovative designs has resulted in belts that offer superior performance and longevity. For instance, incorporating Aramid fibers and other advanced synthetic materials has allowed for higher resistance to heat and wear. As a result, modern V-belts can operate effectively even in extreme conditions, enhancing the reliability of the vehicles they serve.


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A poly V belt, also known as a multi-ribbed belt, is designed with multiple grooves running along its length. This design allows for a larger surface contact area between the belt and the pulleys it engages with, leading to improved grip and reduced slippage. The poly V belt is often made from high-quality materials like neoprene or EPDM rubber, which provide excellent flexibility, durability, and resistance to temperature fluctuations. The 135 in the 135J6 designation refers to the belt's overall length in millimeters, while J6 corresponds to its specific profile and rib design.


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