-The Evo2 arms are forged prior to machining for strength and durability and have spring tension indicators on each arm. Other features include flush surfaces for the lowest possible stack height(just under 21 mm), can be run front or rear, includes A-Brake pads and two sets of springs(hard & soft), modular cable hardware for multiple set-up options, pre-cut straddle cable length to simplify installation (regular Evolver knarps/cable lugs also included) and a new style straddle cable hanger. Weight: 6.7 ounces(includes brake pads and hardware).