ALPINESTARS Spiral Long-Sleeve T-Shirt - Black - 2XL 1232-71020-102X Valve Core Tool Installation does not require modification

Installation does not require modification of stock parts

Super Seal neoprene sealing ring provides a no-grease seal

Fully foldable full mesh front and back ventilation panel bridges efficiently distribute airflow

2021-2023 Yamaha YZ 250 FX - - 2019-2023 Yamaha YZ 450 FX - - 2019-2023 Yamaha YZ 250 F - - 2018-2022 Yamaha YZ 450 F

New vulcanization process to marry the layers of the belt together around the cord preventing premature separation of the layers

ALPINESTARS Spiral Long-Sleeve T-Shirt - Black - 2XL 1232-71020-102X Valve Core Tool Installation does not require modification100% cotton slub jersey Spiral print graphic on front of t shirt Rib crew collar, open cuffs Internal Alpinestars neck print