Description
SRAM's light and accurate spindle-based power unit nestles into their striking redesigned arms to give you the data you need, and their newest direct mount chainrings are light and stiff while looking good.
- 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