Frankenstein V4 2spd,

Now has a 2 SPD transmission, will be adding a 3rd & 4th gear soon.

Just put 2 Inline 2 engines to a common output shaft, and BAM a v4, two separate sets of pistons drive the single output shaft, similar to the old 400 and 500 2stroke race bikes, (independent pistons connected to a common output shaft) will be updating this soon.

as always, edit, modify, & improve!