We cut grams out of our aluminum crankarms, but didnt cut corners on power measurement. Our light and accurate spindle-based power unit nestles into our striking redesigned arms to give you the data you need, and our newest direct mount chainrings are light and stiff while looking good.

Features

• Spindle-based unit measures left side power to calculate total watts
• Long battery life (400+ hours) to power a season of rides
• User replaceable AAA lithium battery
• DUB bottom bracket adds durability and simplicity
• Waterproof (IPX7 waterproof to 1 meter for 30 mins)
• Lightweight (less than 40g heavier than standard crankset)
• SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control
• Wide chainline for compatibility with Full Mount rear derailleurs
• Specifications Speeds 12, 13 BB Compatibility All SRAM Road WIDE DUB BBs Chainring Size 42T Crank arm length 165mm Chainline 47.5mm BB Spindle Interface DUB Chainring material Aluminum Bolt Circle Diameter (BCD) Direct Mount (DM) Power meter Yes Power Meter Type Spindle Bottom Bracket Technology n/a