The classic Ridea ES cranks with all the data capability of SPM2 power meter spider. ES SPM2-R5 is the sub-compact (46-30t ratio) option for road climbing. If your rides frequently have steep gradients and you want to keep a high cadence, this power meter crankset is the right choice.
Model name: Ridea ES SPM2-R5
Crank material: CNC AL7150
Crank arm length: 145; 150; 155; 160; 165; 167.5; 170; 172.5; 175; 177.5; 180 mm