It takes balls to barrel down a singletrack on a bike into banked turns between trees before dropping six feet into transition. Maybe that's why Denver-based mountain-bike manufacturer Guerrilla Gravity christens its bikes with some of the most hard-core musical references. Fancy a braap? Check out Clash namesake "The Smash," a full-suspension trail-eater inspired by the rebel spirit of Joe Strummer. Or lose the suspension and crank around town on the Lemmy-inspired "Pedalhead." Elsewhere, you'll rest easy knowing your "Megatrail" will never "Rust in Peace" thanks to GG's Revved Carbon Technology, which basically makes these heavy-metal frames indestructible.