Campаgnolo Campagnolo Ekar 13 Ultra Torque Pro Tech Carbon

The crankset is the heart of the new 1x Ekar system, with its optimised gearing ratios, sensitively spaced across a wide range.- Of course, the single chainring is simple to use – no front mech, significantly reduced weight, fewer moving parts to collect dirt or clog, and providing high chain security, with no wasteful gearing overlap – perfect for gravel riding and racing.- The unidirectional carbon fiber cranks feature a strong, durable 630-grade steel alloy crank axle – following the maxim of smartly mating strength and light weight that is employed across the Ekar groupset.- New ProTech technology joins the two semi-axles inside the bottom bracket, with a single, oversized bolt.- Oversized stainless steel bearing sit on the crank, fixed on the semi-axles, for maximum smoothness and strength – and easily accessible for inspection and maintenance without the requirement to extract the cups.- There are four ring size options: Adventure has 38 teeth, Pure Gravel is 40T, Fast Gravel is 42T, and eGravel 44T.- Their narrow-wide design provides efficient drive and maximum chain security.- The light, strong 7075 aluminum rings are easily interchangeable – you can simply unbolt them from the four spider arms with no requirement for crank disassembly.- The four arms, which are asymmetrically set for optimal spread of the torque load, feature a 123mm Bolt Circle Diameter.- Swapping rings is an easy and efficient way to switch out your gearing as you tackle different types of riding.- The Ekar crankset features four arm length options – 165, 170, 172.5 and 175mm – to suit riders of all sizes and styles.- For some gravel bikes featuring low bottom bracket heights, shorter crank arms are a popular choice to avoid grounding on loose and unpredictable surfaces.- A narrow 145.5mm Q-factor makes for a comfortable, efficient pedalling style, whatever your size.- The UD carbon arms come with neat, removable protective end caps, to keep your components looking like new, whatever terrain you tackle.- Lightweight, efficient, secure 1x Ekar system - perfect for gravel riding and racing- 2-piece cranks: ultra-torque 630 steel axle & UD carbon arms - strong and lightweight- 4 ring options - Adventure (38T), Pure Gravel (40T), Fast Gravel (42T), Gravel Race (44T)- Narrow-wide tooth design - efficient drive & maximum chain security- ProTech strong, efficient, self-aligning Hirth joint semi-axles- Easy access to external crank bearings- Easily interchangeable alloy rings - no need to disassemble crankSpecifications:- Speed: 13- Length: 172.5mm- Combinations: 42T- Weight: 615 g +/-- Narrow Q-factor: 145.5mm- BCD: 123mm