Pushing the boundaries of road never before has a high tech road bike been so capable on low tech roads the grade is ready for everything from freshly paved switchbacks to the gravel roads and everything in between the grade knows no bounds shimano tiagra 2x10 drivetraintrp spyre mechanical discfsa vero compact cranksetframe grade alloy frame with smooth welds hydroformed ttdt tapered 1 18 1 14 headtube standard bbfork grade carbon 1 18 to 1 14 threadless alum steerer disc specificc