SRAM Rival 2x Powermeter E1 Power Meter Crankset Speed: 12 Spindle: 28.99mm BCD: Direct Mount SRAM 8 Bolt 48/35 DUB 160mm Black Road Weight-348 }tr:nth-child(even){background-color:#f2f2f2}th{background-color:#eb212e

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40t:  Improved by 69%

The boot has extra insulation to keep kids comfortable as they learn

Black Mounting Hardware

SRAM Rival 2x Powermeter E1 Power Meter Crankset Speed: 12 Spindle: 28.99mm BCD: Direct Mount SRAM 8 Bolt 48/35 DUB 160mm Black Road Weight-348 }tr:nth-child(even){background-color:#f2f2f2}th{background-color:#eb212eSpindle 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 Lightweight (less than 40g heavier than standard crankset) Crisp and accurate fro TECH SPECS BCD Direct Mount SRAM 8 Bolt BB Inclusion No Chainline 45mm Teeth 48 35 Connectivity ANT+ BT LE Crank Spindle Diameter 28. 99mm Crank Arm Length 160mm Interface DUB Crankset Material Aluminum Pedals