Torp TM50 PRO / SPEED motor for Surron Ultra Bee

Torp TM50 PRO motor for the Sur-Ron Ultra Bee – maximum power for your electric bike

The Torp TM50 PRO is a major upgrade for your Sur-Ron Ultra Bee. With 58 kW of peak power, 102 Nm of maximum torque and efficiency of up to 95%, it delivers exceptional performance. Reaching up to 11,000 rpm, this IPM motor provides outstanding acceleration on any terrain.

TM50 PRO technical highlights

✔ Maximum torque: 102 Nm
✔ Peak power: 58 kW
✔ Maximum phase current: 1,200 A
✔ Speed: Up to 11,000 rpm
✔ Efficiency: Up to 95%
✔ Position sensor: High-precision encoder
✔ Temperature monitoring: PT1000 sensor
✔ Cooling: Air-cooled
✔ Protection rating: IP67 (motor housing; keep connectors dry)
✔ Dimensions: 170 × 198 mm
✔ Weight: 14.2 kg

Note:

The TM50 PRO produces extreme power and requires a comprehensive Ultra Bee upgrade, including a reinforced chain, sprockets, belt, brakes and a capable battery, to use its full output safely.

⚡ Maximum performance for your electric bike – upgrade now! ⚡

TM50 PRO and TM50 SPEED compared

• TM50 PRO: 58 kW peak power, maximum 102 Nm, 88 rpm per volt and up to 11,000 rpm. For setups focused on torque.
• TM50 SPEED: 55 kW peak power, maximum 89 Nm, 97 rpm per volt and up to 13,000 rpm. For setups focused on motor speed.

Both versions are intended for the SURRON Ultra Bee with a generation 1.0 or 2.0 TORP TC1000. Both motors have 24 kW of continuous power and a motor resistance of 2 mΩ. Peak figures refer to the individual motor. Actual vehicle output depends on the controller, battery and tuning.

Technical specifications and version comparison from TORP

* Delivery time: 2–5 days, to Switzerland 4–9 days. Collection available.

Shipping costs at a glance

PKS Bikes GmbH ships from Germany. Shipping costs depend on the items in your cart and the delivery address. All amounts in the table are in euros.

* Available delivery countries vary by shipping method. Free standard shipping from €50.00 applies in Germany to items in the general shipping profile. Shipping charges may be combined for orders containing items from multiple shipping profiles. Available shipping methods and total costs are displayed at checkout before you complete your order.

Delivery times and availability

Estimated delivery times depend on the item, stock, delivery address and shipping method. For tyres, the shipping rate states 2–4 business days within Germany and 2–6 business days internationally. For pre-orders, the delivery information shown on the product applies.

Deliveries to Switzerland

Freight shipping of a boxed bike costs €220.00. The customs-clearance services included in the rate are specified in the selected shipping option. Additional import charges may apply, particularly Swiss import VAT.

Collection in Dreieich

If collection is offered at checkout, you can collect your order from PKS Bikes GmbH, Maienfeldstraße 15, 63303 Dreieich. Please wait for the collection confirmation and arrange the time with us.

For questions about shipping or collection, contact our customer service.

Customer enquiries: support@pks-store.com