Big nobblys are heavy and create alot of rolling resistance all in all slower will grip on grass etc, but u could spend more time out of buggy rather than in depends on kite wind etc. Also will you have enough clearance for your arms and various other body parts between the axles with them been so huge would hurt if you caught ya arm in them pulling a turn. They are going to grip well so front end ****ing its self could happen as quoted above biggys on back ribbed extra wide on rear is a good balance might be worth looking at hope this helps and has not bored you cheers.