Torque sensor vs cadence sensor: how e-bike pedal assist feels

How each sensor works

Pedal assist needs a way to know you are pedaling. The sensor is that link, and it shapes how an electric bike feels more than almost any other part.

• Cadence sensor. A ring of magnets near the cranks passes a small sensor as the pedals turn. Once the system sees the pedals moving, the motor delivers a set level of help for the assist level you chose. It does not measure how hard you push, only that you are pedaling.
• Torque sensor. A strain sensor near the cranks or the rear axle measures the force on the pedals many times a second. Press harder and the motor adds more. Ease off and it backs off. A dual-sided sensor, like the one Hiboy lists on the EX9, reads the force from both pedals.

Many torque sensor systems also track cadence, so they know how fast and how hard you are pedaling. With either type, the brake levers on most electric bikes cut the motor the moment you pull them.

How each one feels

Cadence: a steady push. Start pedaling and, after a short pause, the motor comes in at the level you set. Keep the cranks turning gently and the bike holds its pace with very little effort from you. Stop pedaling and the help fades after a moment. On a low assist level it feels like a tailwind. On a high one it can feel like the bike is carrying you along.

Torque: stronger legs. The help arrives as soon as you press, so starts feel smooth and immediate. The bike speeds up when you push and settles when you relax, the way a regular bicycle does, only easier. Riders who come from road or mountain bikes usually find it the more natural of the two.

Where you notice the difference:

• Starting from a stop. Torque assist answers the first push. Cadence assist waits for the pedals to turn, which can feel like a short lag and then a surge.
• Tight spaces and traffic. With torque, a light push gives a little help, so slow riding is easy to control. With cadence, any pedaling brings the full level you set, so riders often drop to a lower level in crowds.
• Hills. Torque assist adds help as you push harder on a climb. Cadence assist gives the same help whatever the slope, so you raise the assist level or shift down as the road tilts up.
• Range. Because torque assist matches your effort, it often uses less battery on easy stretches. Cadence assist draws a steady amount whenever you pedal.

Who each sensor suits

A cadence sensor suits you if:

• You want the bike to do most of the work, for example on a commute in work clothes.
• You are getting back into riding, or you prefer a relaxed, steady pace.
• You like to set a level and cruise without thinking about effort.
• You want a simpler, lower priced system. Cadence sensors are common on budget models, as our guide to the best electric bikes under $1,000 explains.

A torque sensor suits you if:

• You want a ride that feels like a regular bicycle, or you ride for exercise.
• You ride in stop and go traffic or on narrow paths, where fine control matters.
• You climb a lot and want help that grows with your effort.
• You want to stretch the battery on long rides.

Getting used to pedal assist

• Start in the lowest assist level and ride a quiet street or an empty lot until starts and stops feel natural.
• With a cadence sensor, stop pedaling a moment before a tight turn or a stop, because the help can run on briefly. Touching the brake lever cuts it at once.
• With a torque sensor, press gently as you pull away. A hard first push brings strong help right away.
• Shift down before you stop, so the next start is easy on your legs and the drivetrain.

Our electric bikes with a stated sensor

These listings name the pedal sensor. Many other models do not, so ask us if it matters to you.

Torque sensor

• Segway Myon: a torque sensor with a 1500W peak motor and 85 Nm, a Shimano Cues 9-speed with electronic auto shifting, and pedal assist up to 28 mph where allowed.
• Hiboy EX11: a torque sensor with 90 N·m, full suspension and a removable 864Wh battery. Hiboy lists up to 100 miles with pedal assist and up to 53 miles on the throttle, both for a 165 lb rider.
• Hiboy EX9: a dual-sided torque sensor on a city commuter with a 750W motor (1000W peak) and hydraulic disc brakes.
• Teewing T20: a torque sensor with a 250W rear hub motor, on a carbon fiber folding frame.

Cadence sensor

• Segway MUXI: a cadence sensor on a step-through cargo frame with a single speed drivetrain and a 717Wh battery. It is listed as class 2.
• Segway MUXI Pro: Segway lists cadence and gyroscope sensors, with 9-speed electronic auto shifting and 70 mm front suspension.

Torque or cadence

• ASAP Zen, ASAP Varna and ASAP Pioneer: ASAP lists pedal assist with torque or cadence sensing on all three fat tire models.

Maker figures, checked September 2026. Real range and speed depend on rider weight, terrain, temperature and riding mode.

The sensor and the motor work as a team. A torque sensor makes a mid-drive feel natural, and it smooths out a hub motor too. Read hub vs mid drive motor for the motor side of the choice.

Which one to choose

Think about how you want the ride to feel. For a relaxed ride where the bike carries you, a cadence sensor is easy to live with. For a ride that feels like cycling with help, choose a torque sensor. Riders who want easy mounting and simple controls may also like our guide to choosing an electric bike for seniors.

For the other big decisions, read how to choose an electric bike, then browse every model in the electric bike shop. Every order ships free to the lower 48 states, and you have 14 days to return an order.

Questions riders ask