Skip to product information
1 of 6

Left pedal assist sensor SL-12 – 3-pin connector

Store information
Viewing / personal pickup is available Monday to Saturday.
Opening hours:Mon–Fri: 9:00–19:00
Sat: 10:00–16:00
Sun & public holidays: CLOSED
Regular price 29,90 €
Sale price 29,90 € Regular price

Estimated delivery

Contact us to confirm delivery for this variant.


Payment methods
  • American Express
  • Apple Pay
  • Bancontact
  • Google Pay
  • iDEAL Wero
  • Klarna
  • Maestro
  • Mastercard
  • MobilePay
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Left 3-pin pedal rotation sensor

The SL-12 black pedal assist sensor is mounted on the appropriate left side of the crank assembly. The ring section detects rotation, and the approximately 110.4 cm long cable leads to a black three-pin connector.

Features and fitment

  • Left pedal assist sensor labeled SL-12.
  • Black housing with cable and 3-pin connector.
  • Approximate housing dimensions 45.5 × 51.1 × 11.4 mm; cable length approximately 110.4 cm.

Approximate dimensions

  • Sensor: 51.1 × 45.5 × 11.4 mm.
  • Center opening: 14.5 mm.
  • Cable: length 110.4 cm, diameter 3.2 mm.

Check the axle shape, installation direction, and signal contact layout. The rotation sensor is not a torque sensor and does not measure pedal pressure.

Installation and use

Disconnect the power before removing the crank. Install the sensor in the correct direction and protect the cable from the chain and crank. After connection, check the pedal assist and ensure it stops when you stop pedaling.

Why choose EVOLT?

Tržaška cesta 222, 1000 Ljubljana

Our showroom in Vič, Ljubljana, offers 200 m² of space, bringing sales, servicing and spare parts together in one place.

You can view and try out products in person, and after purchase we provide local servicing, expert support and prompt spare-parts delivery.

MON–FRI: 9:00–19:00
SAT: 10:00–16:00

1,000+ spare parts

In stock in Ljubljana

EVOLT is a specialized provider of spare parts for electric scooters, e-bikes and other electric vehicles.

Discover a wide range of quality spare parts and components in stock in Slovenia with fast delivery in 1–2 working days.

We offer reliable supply for both end customers and business partners, workshops and retailers – with options for retail and wholesale.

Do you have more questions about Left pedal assist sensor SL-12 – 3-pin connector?