Ridea ES R4-91 cranks represent the standard and most common choice for cyclists of all kinds among the Ridea catalog. With available chainrings from 48-32t to 56-44t and also options for single chainring, there is always a perfect combination for your rides.
Model name: Ridea ES R4-91
Crank material: CNC AL7150
Crank arm length: 155; 160; 165; 167.5; 170; 172.5; 175; 177.5; 180 mm
Compatible chainrings: Ridea Lami·Flow R4-91 series (single or double). Also compatible with any Shimano (R9100/8000/7000) compatible chainring.
Chain line: 44.5 mm (double chainring) or 48 mm (single chainring)
BCD: 110 mm (4 arms)
Q factor: 148 mm
Weight: 548 g (steel) or 498 g (titanium)
Spindle material: Steel (standard) or Titanium (optional)
Spindle diameter: 24 mm
Available colors: black (crank arm); black, red, silver, gold (spider)