e*thirteen Helix Race Alloy GR Cranks - Black GRAVEL incredibly durable Composite Matrix material

incredibly durable Composite Matrix material and goes one step further with its IP67 waterproof rating keeping the AirTag dry

with a special mix of high purity graphene

from lost wax investment castings

It weighs only about 30 grams more than the comparable Ultegra model

e*thirteen Helix Race Alloy GR Cranks - Black GRAVEL incredibly durable Composite Matrix materialWorking alongside our World Cup DH and Enduro athletes, e*thirteen engineered the new Helix Race GR Cranks. These Forged AL 6066 T6, CNC sculpted aluminum cranks are designed for the rigors of downhill, big bike park laps, enduro, and freeride. The Helix Race GR shares the spindle design and low profile shape with our top end carbon and alloy cranks, with 83mm and 73mm spindle options. Helix Race GR cranks easily exceed ASTM 5 standard a work of art