The latest addition to Californian manufacturer Barnett's extensive off-road clutch components line are these heavy duty 'Belleville' type clutch springs for select ‘12-‘15 KTM models. Made of heat-treated high carbon content spring steel, they are said to be 20% stiffer than the stock spring they directly replace. Barnett say that "for optimal performance, install a Barnett Dirt Digger clutch plate kit along with the spring". Barnett, USA; www.barnettclutches.com
