Motor Power & Torque

You can measure the power of a motor in the maximum watts it can produce. A motor that produces more watts will make it easier for you to maintain a certain speed while riding. All Specialized motors offer optimal support over a broad range of pedaling cadences – even beyond 100 rpm. This helps provide a more natural feel. 

  • The original SL motor provides 240w of nominal/peak output and 35 Nm of torque 
  • The SL 1.2 motor provides 250w nominal power with 320w of peak output and 50 Nm of torque 

This is equivalent to about 180% of rider power or 2 x you.

Efficiency

To get maximum range, riders should pedal smoothly at cadences of 75 rpm and higher. This is also the most knee/leg-friendly way of pedaling.

Warranty

All motors are covered under warranty for 2 years from date of purchase. 

Motor Comparison with Standard Turbo

Specialized 1.2 SL Motor

Specialized 1.1 SL Motor

Specialized Non SL Motors (1.2, 1.2 E, 1.3, 2.1)

Brushless 48V geared motorBrushless 48V geared motorBrushless 36V motor with belt transmission
Weight: 1.95 kgWeight: 1.95 kgWeight: 3.0-3.4 kg

Nominal power: 250 w

Peak power: 320 w

Torque: 50 Nm

Rider amplification: 230 % (2 x you)

Nominal power: 240 w

Peak power: 240 w

Torque: 35 Nm

Rider amplification: 180 % (2 x you)

Nominal power: 250 w

Peak power: 415-580 w 

Torque: 50-90 Nm

Rider amplification: 320-410 % (3-4 x you)

Water resistance: IP 56Water resistance: IP 56Water resistance: IP 67