MCS Single Alloy Chainring Bolts - 5 bolts - Gold 31.2mm These bolts are made from

These bolts are made from aircraft-quality 7075-T6 aluminum and designed for double chainring bicycles and thicker single chainrings

The Odyssey BMX Euro bottom bracket (spacers and bearings) is for use with 19mm crank spindles (not included) and threaded Euro bottom bracket frames

this hunk of awesome is much too heavy for you new-school-weight-weanies

High-strength plastic composite

MCS Single Alloy Chainring Bolts - 5 bolts - Gold 31.2mm These bolts are made fromThe MCS Aluminum Single Chainring Bolts come in a set of 5 male female bolts. The inside measures 4mm when tightened, and they have a total height of 7mm. These bolts are anodized aluminum and designed for single chainring bicycles, like BMX and track bikes. Color: Gold Note: This part was colored by anodizing, which is a method of coloring metal. Color differences do occur among manufacturers and even among batches from the same manufacturer. This is