CAMPAGNOLO Ekar 13 Ultra Torque Pro Tech Carbon crankset 170 mm

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 crank Specifications: - Speed: 13 - Length: 172.5mm - Combinations: 42T - Weight: 615 g +/- - Narrow Q-factor: 145.5mm - BCD: 123mm