The Storm is meant as a performance upgrade to the base Thunderbird. The 1700cc engine (100ccs more than the base model) is not only more powerful, but has a more aggressive power delivery as well. ABS, which is optional on the Thunderbird, is thankfully included (it’s an option on the ‘Bob), but in chassis configuration, the Storm really is the same bike, only with dual headlights, drag bars, and a bunch of black paint. But even just the paint changes the look dramatically, with the black wheels highlighting a floating brake rotor, black springs, and the shocks. It comes in two kinds of black (matte and gloss), but no other colors.