## Prox Connecting Rod Small End Bearing (21.2103) - Yamaha YZ 80, Piaggio NRG 50 The Prox connecting rod small end bearing (21.2103) is a high-quality replacement part designed for motorcycles like the Yamaha YZ 80 (years '82-'92) and scooters like the Piaggio NRG 50. The renowned Prox brand guarantees durability and reliability, ensuring smooth engine operation for a long time. ### Technical Parameters: * **Inner Diameter:** 12mm * **Outer Diameter:** 17mm * **Length:** 15mm ### Why choose a Prox bearing? * **High-quality manufacturing:** Prox bearings are manufactured with precision, using the highest quality materials, which translates into their long life and resistance to wear. * **Perfect fit:** Precise dimensions guarantee trouble-free installation and compatibility with the listed vehicle models. * **Reliability:** Prox bearings provide stable and smooth engine operation, minimizing friction and vibration. * **Trusted brand:** Prox is a recognized manufacturer of spare parts for motorcycles and scooters, enjoying the trust of mechanics and users worldwide. By choosing the Prox connecting rod small end bearing, you are investing in the reliability and longevity of your engine.