ALPINESTARS SP-1 v2 Vented Shoes - Black/White - US 9.5 / EU 44 25113181244 s2000 51-1040 Replica 1936 Knucklehead Frame

51-1040 Replica 1936 Knucklehead Frame Reference #'s (if available): 2801-36 Can't find what you need

This sub has a much lower than normal FS so it can be used in larger boxes with lower than normal tuning

Installs via the OEM floorboard bolt

- Fits rim hole diameter: 11

ALPINESTARS SP-1 v2 Vented Shoes - Black/White - US 9.5 / EU 44 25113181244 s2000 51-1040 Replica 1936 Knucklehead FrameMicrofiber upper Perforated microfiber panels on lateral and medial quarter areas plus medial side perforation zone for enhanced airflow Tongue is made with breathable mesh to improve airflow Rear accordion panel is lightweight padded material Speed lacing system derived from Alpinestars MotoGP technology for a quick, precise, secure closure Ankle opening closure system using a hook and loop strap with debossed Alpinestars logo Foam backed double