It's an interesting thought.I hear you, but if it doesn't get any better mileage than a TRX, wondering if it's worth it to find a very low mileage used one?? I drive about an hour each day and the accountant in me concluded that 14-15 mpg was ok but that 10 or 11 wasn't . . .
RHO is only marginally slower than TRX stock, and seems to close that gap with even a piggyback tube
RHO has significantly better technology/amenities
Reports indicate RHO has a more comfortable/responsive ride
And on the other hand:
TRX exhaust sound
TRX seems to be a more reliable platform at this point in time
720 is a cool number to have
You could make a compelling argument either way