It's internally and externally butted with triple butted fork blades with investment cast fork end caps

FORKS: 100% Chromoly - 1-PC Steerer

- Compatible only with BB86 standard bottom bracket shells

aluminium is softer than steel

Made from durable straight gauge Chromoly with classic minimal dropouts that stay out of the way on grinds

Box One Race Stem Spacer Kit Size:1" It's internally and externally buttedExtruded and CNC machined from 6061 T6 aluminum, Box One Stem Spacers feature an ultra minimalist design that is super lightweight. Weights range from 0. 02 to 0. 14 ounces (0. 56 to 4 grams), depending on the size. Sold in packs of five, each set provides spacing adjustments from 1 to 20 millimeters. Available in anodized red, blue, and black to fit 1 and 1 1 8 forks. For the best performance, stack the spacers so the vertical supports are in