Campagnolo ekar 13 speed single chainsetstiff, elegant and created for optimum power transfer over challenging terrain, campagnolos 1x13 speed ekar chainset boasts carbon fibre crank arms for a low weight with high strength. It combines with the ekar system to bring you the range, efficiency, durability and chain retention you need to thrive off road.gravel bike chainsetthe 1x chainset is a crucial element in campagnolo's gravel all road specific ekar drivetrain design. Lightweight, secure and simple, with no wasted overlapping gears or unnecessary moving parts to collect trail dirt. The ekar chainset will convince you that one chainring and no front mech is the way to go, whatever your off road ambitions!strong carbon fibre crank armsdont let the apparent simplicity fool you, this chainset has been designed from the ground up. Just like the whole ekar system, the cranks combine strength and lightweight materials. The 2 piece crankset features a strong, durable 630 grade steel alloy axle mated to a polyamide carbon spider and beautiful ud carbon arms. The ergonomics of this chainset mean it is suitable for any size of rider, with 4 crank arm lengths available. The outer chainrings are also easily interchangeable, with no need to disassemble the chainset if you want to alter your gearing.features material ud carbon fibre crank arms, polyamide carbon spider and ultra torque 630 steel axle speed 1x13 speed recommended chain campagnolo ekar 13 speed axle profile ultra torque integrated axle designed specifically for ekar 1x13 groupsets suitable for gravel and all road riding crank boots included to protect the crank arms easily interchangeable chainrings easy access external bearings narrow wide chainring tooth for design efficient drive maximum chain security easily interchangeable alloy rings no need to disassemble crank narrow q factor of 145.5mm ensures compatibility with all modern frames bottom bracket cups not included weight 615g based on 172.5mm, 38ttechnologies pro tech patented dual sealing protech technology securely connects the two semi axles inside the bottom bracket and protects the bb bearings from ingress of water and mud, providing longevity of high performance, even in the worst riding conditions. A gravel orientated development from campagnolo's innovative and proven ultra torque technology, the protech system's central hirth joint features self centring and self aligning frontal teeth located in the middle of the crank where the ends of the integrated semi axles meet. Buy campagnolo components from chain reaction cycles, the world's largest online bike store.