ALPINESTARS Tech 10 Supervented Boots - Blue/Black/White - US 7 2010520-1792-7 Insert GENERAL SPECIFICATIONS Nominal Diameter 8"

GENERAL SPECIFICATIONS   Nominal Diameter  8" / 203mm Nominal Impedance (Woofer / Driver) 4 Ohms / 8 Ohms RMS Power Handling (Combined) 400W MAX Power Handling (Combined) 800W Sensitivity (1w/1m) (Combined) 105dB Frequency Response (Combined) 40Hz-20KHz Number of Ways 2 ways Sold in Pair or Single Single Grill Included No WOOFER SPECIFICATIONS   RMS Power Handling  250W MAX Power Handling  500W Sensitivity (1w/1m)  96

002 Oversize Intake/Exhaust Knucklehead Valve Reference #'s (if available): Can't find what you need

Measurements of spike:

29 cm H x 27

Highly compatible with all other protectors and jackets

ALPINESTARS Tech 10 Supervented Boots - Blue/Black/White - US 7 2010520-1792-7 Insert GENERAL SPECIFICATIONS Nominal Diameter 8"Construction uses a highly breathable, perforated microfiber with internal perforated padding Highly ventilated perforated padding for optimized ventilation and airflow TPU features is combined with ventilation zones and a new air flow system sole for breathability and superior ventilation Two large inlet ports on front of boot with exhausts at back for optimized levels of airflow and heat exchange 3D Higher Spring insole creates an effective cooling