"folder disadvantages - it's marginally slower,"
How much slower are we talking about here? JW
maybe 2 or 3 mph slower than my road bike, effort for effort. the geometry is more upright than my road bike (less aero, less power into the pedals).
i can put it in simple terms: on my road bike yesterday, my 15 mile ride into work took 53 minutes; this morning on my folder (similar wind conditions) the same ride took me 63 minutes.