Is single-sided power accurate enough for training?

For most riders, yes. The XC110 measures the left leg and doubles it, which works well for zones, pacing and fitness trends unless your legs are badly imbalanced.

Can I upgrade the Garmin Rally XC110 to dual-sided later?

Yes. Garmin sells a kit that upgrades the 110 pedals to the dual-sensing 210 specification, which adds left-right balance and Cycling Dynamics.

Garmin Rally XC110 Archives -

QUICK READ: Garmin Rally XC110 drops to $599.99 at Amazon

2 November 2026

tfk the5krunner

Single-sided power for mountain bike and gravel pedals is now 25% under list. It charges by…