A true dual-pivot design: These brakes are use the new pivoting mechanism for a linear feel that provides an incredibly consistent power distribution from the lever to the rim's braking surface.good compatible: Accommodates up to 28mm wide tires and 24mm rims. fit for most of road bike , folding bike. And you can mount most of the shoes on this brake.High rigidity arm: The brake arms have a slimmer profile and more rigidity contributing to more positive braking.Brake Pad Length:55mmSuper Light weight 155g/pair!Half weight of others brake!Colour: as shownMaterial: Carbon fiber + aluminum alloyPackage Contents:1 pair x Bike C Brake Caliper