BoxComponents - Box Two Chainring

Made in the US from 6061-T6 aluminum alloy, Box Two™ Chainrings are round and true. They fit 104 BCD four-bolt cranks and are available in black anodized with laser-etched graphics from 38 to 45-teeth.

Tooth Size

Categories : DRIVETRAIN

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Product Description

Description;

-BCD: 104mm
-Material: 6061-T6 Aluminum
-Origin: Made in USA
-Thickness: 3.5mm
-39 Tooth 78 grams / 2.75 ounces
-40 Tooth 79 grams / 2.78 ounces
-41 Tooth 84 grams / 2.96 ounces
-42 Tooth 87 grams / 3.07 ounces
-43 Tooth 90 grams / 3.17 ounces
-44 Tooth 92 grams / 3.25 ounces
-45 Tooth 96 grams / 3.38 ounces

 

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Featuring oversized hollow-forged crank arms and a massive 30-millimeter Praxis™ M-30 spindle cold-forged from 7075 aluminum and precision ground to extremely tight tolerances, Box Two™ M30-P cranks fit frames with European bottom brackets, paired with the same oversized, hollow-forged arms and 104 BCD spider with a flex-resistant ring as our Box One™ M35 cranks. An independent test lab compared a wide range of cranks to both the Box One™ M35 and Box Two™ M30-P cranks. The Box Two™ M30-P cranks proved to be stiffer than anything on the market, being second only to its Box One™ M35 big brother. Each crankset includes a Praxis™ M30-BSA Threaded Bottom Bracket that is compatible with all BSA European style bottom brackets. For frames with BB86 or BB30/PF30 bottom bracket shells, compatible adapters can be purchased separately from Praxis ™.

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