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Box - Cosine 7075 BMX Chainring (Bicycle)

Product Code: box-cosine-7075-chainring-bicycle
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Box - Cosine 7075 BMX Chainring (Bicycle)

BOX Components is pleased to announce a new line of long-lasting BOX Cosine chainrings made from 7075 T6 aluminum. The new chainrings are precision CNC-machined from 7075 aluminum alloy, which is stiffer and stronger than 6061, yet just as lightweight. The rings also are Type-3 hard anodized to increase abrasion and wear resistance and to offer improved lubricity. BOX is targeting the more-durable chainrings at riders with more-than-average horsepower and those of average power output who simply want to buy a chainring, put it on and forget about it for a long, long time. 7075 aluminum is the same material used for the rear sprockets on motocross bikes.

Features:

  • Made in the USA
  • 7075 Aluminum Alloy
  • Fit 104-BCD four bolt cranks
  • Hard anodized back finish
  • 41-44T only
  • 41T 84g/2.9oz - 44T 92g/3.2oz