DT RR585 Powertap SL+
DT RR585 Rim with Powertap SL+ Hub
Great training wheel with strong DT Swiss rim and Cycleops Powertap SL+ powermeter hub.
The hub runs with ANT+ transmission protocol, so it can be used with Garmin and most of the ofter ANT+ computers.
Optional with Computer, HR Belt, USB Docking....