The racing proved SPM2 power meter spider arrives to the latest Ridea cranks keeping all the functions present in the ES and IT series of cranks, plus the improved arm-spider connection of Pneuma cranks. The GR-4C version is a super-compact crankset that allows very small chainrings to climb anything.
Ridea SPM2 is a family of spider-based power meters available for road, track/single speed and mountain bikes. A spider-based power meter combines the ability to provide the most precise measurements in both legs with the smallest weight penalty (65 g more on average than a regular spider).
Ridea SPM2 integrates four measuring gauges to deliver accurate data (±1.5%) for both legs during up to 120 hours with an integrated battery rechargeable via USB. Everything protected under an IPX6 certification.
Connect via ANT+™ or Bluetooth® LE to your cycling computer or smartphone app and just ride! The automatic zero offset function will provide precise measurements of all your trainings and races.
CHARACTERISTICS:
Model name | Ridea Pneuma Taroko SPM2 GR-4C | ||
Crank material | CNC AL7150 | ||
Crank arm length | 24: 140; 145; 150; 155; 160; 165; 167.5; 170; 172.5; 175; 180 mm 29: 155; 160; 165; 167.5; 170; 172.5; 175 mm | ||
Spindle options | Spindle diameter | 24 mm | 29 mm |
Spindle material | SCM440 or TI64 | AL7075 | |
Spindle length | 126 mm | 126 mm | |
Bearing contact area | 92 mm | 92 mm | |
Chain line | 44.5 mm | 44.5 mm | |
Q factor | 148 mm | 148 mm | |
Spider mount positions | +10° (climbing); -10° (rouleur); 0° (standard position) | ||
BCD | 110/96 mm | ||
No. of arms | 4 | ||
Weight | 523 g (170 mm crank arm; 24 mm, TI64 spindle; without chainring) | ||
Compatible chainrings | Ridea Lami·Flow GR-4C (inner ring with 96 mm BCD) | ||
Available colors | Black. Other Ridea colors also available for custom orders. Check with your dealer for more details. | ||
SPM2 Power Meter Spider Unit | |
Leg measurement | Both legs |
Accuracy | ±1.5 % |
Power range | 0 – 2000 W |
Cadence range | 30 – 200 rpm |
Calibration | Auto Zero Offset |
Weather sealing | IPX6 |
Battery | Lithium. Internal. Running time: 120 hours |
Temperature range | -20 – 50 °C |
Connectivity | ANT+™ and Bluetooth® LE |