OUR GEAR: The KONA Precept takes the advantages of 27.5-inch wheels and the Swinger Suspension with 120mm of rear travel and creates a bike with more singletrack range. This is an incredibly efficient climber, and a faster, more stable, descender. Outfitted with a Shimano drivetrain highlighted by a Deore Shadow rear derailleur, RockShox suspension and refined trail geometry with excellent standover, the Precept is everything a great mountain bike should be: solid, smooth and full of smiles.