Alpinestars Fluid Narin BMX Race Pants-Black/White size-pro Frame upper head tube inside

Frame upper head tube inside diameter: 41

No gap when pedaling forward

this race jersey features bold Speedco and Avian logo graphics

4130 heat-treated chromoly

Alpinestars Fluid Narin BMX Race Pants-Black/White size-pro Frame upper head tube insideThe Alpinestars Fluid Narin BMX Race Pants are designed for top tier performance and flexibility, with a poly fabric main chassis for enhanced durability. These pants include stretch corduroy panels on the crotch, knees, and inner leg to provide superior freedom of movement and an optimized fit. Synthetic leather reinforced inner leg panels offer enhanced heat resistance, grip, and comfort. The pre curved leg design and ergonomic cut ensure excellent