The Vance & Hines FP4 is slimmer and more compact than its predecessor, the Fuelpak FP3, which came with a smartphone app. However, the company claims it has made significant updates to the app ...

Vance & Hines, a motorcycle accessories maker, came to the big annual Sturgis motorcycle rally, which draws riders from a cross the nation every summer, to show off its Fuelpak FP3 -- a black box ...