
POLINI 12.5° Half-Pulley — Self-ventilated half-pulley designed for demanding setups on urban scooters equipped with a Polini Evolution casing or tuned Piaggio engines. Made from anodized aluminum alloy, its robust design and increased diameter of 115 mm enhance thermal management of the transmission without compromising reliability.
This part is intended for urban chassis enthusiasts seeking optimized thermal management and airflow within the variator and transmission. Compatible with many 50 cc scooters, including APRILIA SR 50 R (2022), PIAGGIO TYPHOON 50 E4 (2020), and VESPA LX 4T (2013) — check compatibility with your casing before installation.
Manufacturer Reference: 244.0132