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Ekar Crankset 1x13 Speed
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.
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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
4 crank arm lengths – 165, 170, 172.5 and 175mm
Narrow Q-factor – 145.5mm
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Specifications
- LENGTH
- 165, 170, 172.5, 175mm
- COMBINATIONS
- 38T, 40T, 42T, 44T
- WEIGHT
- 615 gr (172.5mm, 38T)
Technologies
MPS™ MICRO PRECISION SHIFTING SYSTEM
The evolved design of the up-shift and down-shift zones and of the teeth profile enables fast, precise shifting in any conditions
ULTRA-TORQUE™
Lightness, stiffness, and simplified assembly: ULTRA-TORQUE™.
GROUPSETS
MPS™ MICRO PRECISION SHIFTING SYSTEM
Campagnolo constantly strives to achieve maximum performance from all its ranges of groupsets, from Super Record Wireless to Ekar™. The Micro Precision Shifting™ (M.P.S.™) System fully reflects this company philosophy: absolute precision, speed and a reduction of the distance covered by the chain when moving from one chainring to another. Mechanical work on the outer chainring is proof of the obsessive attention to detail and the perseverance of our Campy Tech Lab™ designers, who aim for maximum performance from all of Campagnolo’s products. The result is surprising and changing chainrings, even under load, is now no longer a problem! The evolved design of the up-shift and down-shift zones and of the teeth profile enables fast, precise shifting in any conditions.
GROUPSETS
ULTRA-TORQUE™
Lightness, stiffness, and simplified assembly: ULTRA-TORQUE™. Campagnolo® has permanently conjoined the semi-axles of the bottom bracket to the respective crankset arms. This redesign has made it possible to considerably reduce the lateral dimensions at the axle level and prevent annoying contact with the ankles when turning the pedals. Assembly couldn’t be simpler: a single oversize bolt is enough to integrate the two semi-axles. This breakthrough was achieved thanks to an ingenious mechanical system derived from many years’ experience in the coupling and rotation axle sector: the Hirth joint. This is basically a joint with self-centering, self-aligning frontal teeth positioned in the middle of the bottom-bracket axle where the ends of the semi-axles, integrated with the crankset arms, come into contact. Where torque transmission is concerned, this system is equally as effective as a single-piece axle, which therefore guarantees unrivalled power transmission.