YEAH , IT WAS REALLY CHALLENGING TO VIDEO WITH ONE HAND AND THE BIKE KEPT FALLING OVER, DROPPING CAMERA ECC....I COPLETELY FABBED THE TANK. IT STARTED AS A COMERCIAL STAINLESS POT, I CUT IT ALL UP AND STRARTED BENDING AND WELDING. THE GAS TANK INLET CONSISTS OF 1/8'' STAINLESS STRAIT PIPE, 90 ELBOW, AND A MALE THREAD UNION JAMMED IN THE PIPE END. I THEN MADE THE VENTS BY TAKING THE TIG AND TACKING THE PIPE TO THE MALE UNION WICH ALSO SECURED THEM .. I THEN TOOK A FEMALE UNION AND CUT A CAP LIKE QUARTER SIZE THEN TIG MELTED AND BLENDED TO MAKE THE GAS CAP. I DRILLED A 1 1/2 '' HOLE AND WELDED THE INLET PIPE INTO THE TANK . IT FITS SO TIGHT INBETWEEN THE DUMMY TANK THERE IT DOESNT NEED TO BE SECURED. I REINFORCED THE INSIDE OF THE PLASTIC DUMMY TANK WHERE I DRILLED FOR THE PIPE TO COME OUT. I USED 1/4'' PLEXY GLASS DRILLED 1 1/2'' HOLE AND 1/8'' HOLES ON ALL CORNERS AND RIVITED TO INSIDE OF DUMMY TANK. I RUN AN O-RING BETWEEN THE CAP AND THE FILL SPOUT AS TO SEAL ALL EXCEPT THE VENT HOLES..THEN I WELDED A 1/4 '' BARBED STAINLESS OUTLET. IT HOLDS 34-48 FLUID OZ. THIS IS WHY I ALSO CARRY A 12 OZ. BOTTLE IN MY FRONT POUCH. THE ONLY DRAW BACK IS NOT SEEING THE GAS LEVEL.. BUT THIS IS WHY I ALSO HAVE A SPEEDO AND*( ODO).. . ILL SOON HAVE A GOOD IDEA OF MI PER GAL/TANK AND WILL BE GOOD TO GO, BUT COME ON- THESE LIL MOTORS GET GREAT MPG, THIS WAS THE WHOLE POINT FOR THIS BUILD..AND YES THE SPEEDO IS DEAD ON......... 40 MPH IS FLAT LAND SPEED WITH CURRENT SET UP. DOWN HILL WAS THE "48 MPH". WAY TOO FAST!!!! 40-45MPH IS PERFECT ON THIS MACHINE.