The Tech 3 Duo Master cylinder is aimed to people wanting to operate individually 2 calipers from one single hand. The master cylinder is combined with either our X2, E4 or V4calipers will suit any riding for XC to Enduro/All mountain to DH.The design is derived from the proven Tech 3 master cylinder and with the finger reach and bite point adjustments on each lever, you can be sure the levers will feel comfortable and suit your riding style. The Tech 3 Duo Master differs from our Uno system as there is a total independency between the front and rear calipers. Two X2 calipers2 independent circuits for safe operationTech 3 lever offers genuine bite point and reach adjustment without toolsX2 caliper uses 2 x 22mm phenolic pistons to give more usable powerUses post mount, 9.74 caliper with adapters to suit all mount optionsCNC machined from 2014 T6 aluminium alloyTop entry pad fittingShimano I-Spec A shifters can be fitted directly to lever bodySeparate direct mounts also available for Sh