The Samox Silver DH-1is built to handle one thing – DH riding at its best.. The DH-1s 2-piece, forged alloy design was developed to deliver standout durability and stiffness. That increased strength and stiffness is provided by the integrated cross channel structure on the inside of each crankarm. With chromoly pedal inserts and a 28.99mm axle the DH-1 can handle whatever you throw at it.