Sinz 110BCD Chainring-5-Bolt Color:Blue They use a Box One

They use a Box One front and rear rim with 36 hole Box Three Pro Hubs

These bars have a post-weld heat-treating which is guaranteed against manufacturer's defects

Frame: 100% chromoly with custom seat stay bridge

Race inspired

Sinz 110BCD Chainring-5-Bolt Color:Blue They use a Box OneThe Sinz 110BCD Chainring 5 Bolt is the perfect match for your Sinz Square Tapered crank setup. A common rule is to replace both front and rear sprockets every time you replace your chain. This sprocket just what the young rockets will want in style, but at minimal cost. Parents like to change gear ratios, so we've brought all the colors and all the sizes with our 110bcd offering. Are you ready to gear up or down? Material: 6000 series alloy Available