FSA KFX ST Carbon StemThis high-quality stem is perfect for MTB (mountain bike) riding, as it delivers a strong and dependable connection between your handlebars and your fork’s steerer tube. Blending together an alloy construction with FSA CSI (Carbon Structural Integration) technology, it gives riders a superior strength to weight ratio as they attack the MTB trails. Weighing only 143g (100mm length version), this is a great choice of upgrade for riders who want a tough component that won’t weigh down their ride.The KFX Stem is 3D forged and CNC-machined from AL2014 alloy. Then it’s combined with a carbon structure using FSA CSI (Carbon Structural Integration) technology. CSI is a process that permanently bonds carbon to alloy to create a true hybrid product, with many of the benefits of aluminium and carbon. Riders have the option to run this stem at + or -12° to suit their riding style. For those whom a 20° drop is too much, a slightly less aggressive lightweight option is also available.Titanium HardwareTitanium offers a reduction in weight compared to steel, while guaranteeing excellent resistance.CSI TechnologyCarbon Structural Integration (CSI) is a fusion of carbon fibre and aluminium. A structural outer layer of carbon fibre is wrapped around a component’s aluminium core to increase the part’s stiffness and create an elegant carbon aesthetic.LightweightThe KFX range brings a selection of lightweight and stiff components for mountain bikes.Features: Stem Material: Alloy with Carbon structured integration (CSI) Hardware Material: Titanium hardware Use: MTB Clamp Diameter: 31.8mm Steerer Diameter: 1 1/8″ Angle: +/-12° Clamp Stack Height: 35mm Manufacturer’s Part Number: 70mm: 175-0042064030; 80mm: 175-0042065030 and 100mm: 175-0042067030 Weight: 143g (100mm length)Buy FSA Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.