Moto Iron 2.3 Gallon Wassell-Style Low Tunnel Frisco-Style Fuel TankMoto Iron 2. 3 Gallon Wassell Style Low Tunnel Frisco Style Fuel Tank The classic appeal of a Wassell type tank is partially due to the classic look that lends itself well to a variety of mounting options and build styles. Undrilled mounting tabs Bungs for two 1 4" NPT petcocks (available separately) Accepts bayonet style (cam lock) fuel cap; not included 14 1 2" L 9" W 7 1 2" H 15 1 2" tab to tab 2" deep tunnel 2 1 4" wide tunnel The low tunnel means