#To offer a counterpoint in the form of a small motorbike

Even though it's not what's asked for, it's relevant to the discussion. Here are the figures for my Honda CBF 125. In £/km rather than $/km, projected over 5 years as I've only had the bike for a year.

Most of the initial costs are likely to be repeated after 5 years due to either wanting a new bike or replacement lifecycles on protective equipment. There should probably be higher maintenance costs in the long run, but as this is a relatively new (and very simple) bike, routine servicing is all that's been needed.

Traditionally one calculates depreciation and resale value on motor vehicles for these purposes but for the sake of brevity, I've just written off the whole cost of the bike over the 5 years. This should cover any unexpected costs on maintenance for example. This being a small bike it's also remarkably cheap on fuel, a tank of fuel costs £10 and covers 230-270 miles.

To offer a counterpoint in the form of a small motorbike

Even though it's not what's asked for, it's relevant to the discussion. Here are the figures for my Honda CBF 125. In £/km rather than $/km, projected over 5 years as I've only had the bike for a year.

Most of the initial costs are likely to be repeated after 5 years due to either wanting a new bike or replacement lifecycles on protective equipment. There should probably be higher maintenance costs in the long run, but as this is a relatively new (and very simple) bike, routine servicing is all that's been needed.

Traditionally one calculates depreciation and resale value on motor vehicles for these purposes but for the sake of brevity, I've just written off the whole cost of the bike over the 5 years. This should cover any unexpected costs on maintenance for example. This being a small bike it's also remarkably cheap on fuel, a tank of fuel costs £10 and covers 230-270 miles.