Made in the US from 7075 aluminum alloy, Box One™ Chainrings are round and true. They fit 104-BCD four-bolt cranks. The 7075 rings come in sizes of 41 to 44-teeth only and have a durable hard anodized finish.
|Origin||Made in USA|
|41 Tooth||84 grams / 2.9 ounces|
|42 Tooth||87 grams / 3.1 ounces|
|43 Tooth||90 grams / 3.2 ounces|
|44 Tooth||92 grams / 3.2 ounces|