Originally Posted by
dell500
. Also, are thick 700c wheels ok on trails? .
question isn't clear. Thick heavy tires will ride hard on pavement and will ride hard on dirt. Thick heavy tires with tread will grip better on dirt and still ride hard. The only good thing about the marthonPluses is that they are very puncture resistant with ride quality(rolling resistance, comfort) sacrificed.
You can get thick heavy tires or light resiliant and grippy tires.