Appealing to cross-country racers and others who are conscious of the additional weight of disc brakes, the HFX-Mag Plus tips the scales at just 368 grams per brake, including rotor, lever, caliper, and hardware. Accomplished through the development of a new carbon-fibre lever blade, a titanium-bolt kit, and Hayes's new G2 aluminum caliper, the HFX-Mag Plus offers the strength and power of former six-inch rotor systems at a significantly reduced weight. The suggested retail price is $550 per brake. www.ogc.ca