XCadey XPower-S PowerMeter 4BoltShimanoAsym110 (Apex) CR - Sram 3-Bolt DirectMount. Charger cord and necessary direct mount bolts included. Only fits the Shimano 4-Bolt 110BCD Asymmetrical Chainring pattern; see my listing for that on my profile if you need a chainring. This item is in the category "Sporting Goods\Cycling\Bicycle Electronics\Power Meters".
The seller is "showme_1627" and is located in this country: US. This item can be shipped to United States.
Model: XPower-S PowerMeter 4BoltShimAsym110
Features: Power, Cadence, USB Rechargeable, Wireless