With adjustable geometry and the ability to run either 29-inch or 27.5-inch wheels, Rocky Mountain’s Instinct C70 offers trail riding versatility for those in search of the one-bike quiver. Basics: Set up 29 or 27.5; adjustable geometry Pros: Versatile, decent climber, awesome descender Cons: Rear suspension takes tinkering to feel supportive and plush Related reviews: 
Trek Rail […]