The TwinTrax uses dual Harley-Davidson/ S&S Evolution engines with a 1.35ltr
capacity each giving the bike a total of 2.7ltrs, which seems slightly absurd
but not entirely unattractive.
Each of those engines produce 80hp and the bike’s total weight is 400kgs,
meaning that each engine is pulling about 40% less weight than it would be if it
was sitting in a stock Harley.
