I'm running two road bikes with BBS02 kits and I pedal both frequently without assistance (mainly to ride with friends @15mph) .. other than the extra 18lbs of added motor/battery weight, neither seem to slow me much due to extra pedal drag .. on a bike stand, I can spin the cranks with one finger and feel some drag, but on the road pedaling, not much.. one of the reasons I like the BBS02 mid drive so much..