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A pair of Brembo M4 monoblock radial-mount front calipers, cast from a single piece of aluminium and fitted with four 34 mm aluminium pistons and sintered pads. The triple-bridge body is stiff and light, which is why this design descends from Brembo's MotoGP work. It suits riders upgrading a bike with 108 mm radial mounts who want firmer lever feel and more consistent braking than a stock two-piece caliper gives. Against cast two-piece rivals it is stiffer and lighter; against billet monoblocks it is cheaper and slightly less rigid.
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Track and sport riders rate the M4 for a firm lever, strong initial bite and little fade over repeated hard stops. Some note the sintered pads are grabby when cold and that setup and bleeding matter a lot.
This is a pair of Brembo M4 monoblock front brake calipers. Each caliper body is made from a single piece of cast aluminum and finished by machining. The body uses a triple bridge shape for stiffness, and the hydraulics and body shape were fine-tuned.
Each caliper holds four 34 mm aluminum pistons and uses steel hardware. The finish is titanium-colored anodizing. The kit comes with sintered brake pads mounted, plus screws and spacers, and bolts directly onto the listed bikes.
