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OE Stock: May be supplied without retail packaging. Professional fitting required. The Bosch Performance Line Sport Drive Unit delivers up to 90 Nm torque, 700 W peak power, and 600% support, with UK-limited 15.5 mph assistance.
OE Stock: May be supplied without retail packaging. Professional fitting required. The Bosch Performance Line Sport Drive Unit delivers up to 90 Nm torque, 700 W peak power, and 600% support, with UK-limited 15.5 mph assistance.
Bosch

Bosch Performance Line Sport Smart System Drive Unit OE Stock in Black

£499.00 £720.00 31% off
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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Hassle free returns

In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Bosch Performance Line Sport Smart System Drive Unit OE Stock in Black

Season:All Year Round

Brand:Bosch

Code:5277944OEM

OE Stock Notice: This product may be supplied in bulk or non-retail packaging. Instructions, mounting hardware, and other accessories may not be included.

eBike Component Notice: This drive unit is intended as a replacement component for compatible Bosch Smart System eBikes. Professional installation may be required and this motor may not function correctly if not installed by an authorised Bosch dealer.

Experience powerful, responsive assistance with the Bosch Performance Line Sport Drive Unit. Delivering up to 90 Nm of torque, 700 W of maximum motor power, and 600% support, this compact motor provides the performance needed for demanding climbs, everyday journeys, and longer adventures.

Designed for Bosch's Smart System, the Performance Line Sport combines smooth, powerful acceleration with quiet operation. Its optimised construction keeps weight to approximately 2.9 kg, helping deliver capable assistance without unnecessary bulk.

Key Features & Benefits:

  • Powerful Motor Assistance: Up to 90 Nm of torque and 700 W maximum motor power provide strong support for demanding riding conditions.
  • Up to 600% Support: High assistance capability helps riders tackle challenging gradients and maintain momentum.
  • Compact, Quiet Construction: Optimised motor design combines a weight of approximately 2.9 kg with quiet operation.
  • Smart System Integration: Designed for compatible Bosch Smart System eBikes, with smooth start-up behaviour and supported assistance functions.

Full Specification:

  • eBike System: Bosch Smart System
  • Maximum Torque: 90 Nm
  • Maximum Motor Power: 700 W
  • Rated Continuous Output: 250 W
  • Maximum Power at 70 rpm: 550 W
  • Maximum Support: 600%
  • UK Assisted Speed Limit: 15.5 mph (25 km/h)
  • Start-Up Behaviour: Powerful, Smooth
  • Shifting System Compatibility: Derailleur and Hub Gear Systems
  • Gear Shift Detection: Yes, Derailleur Systems
  • Gear Shift Detection for Hub Gears: No
  • Walk Assistance with Hill Hold: Supported
  • Hill Start Assist with Hill Hold: Supported
  • Backpedal Braking: Supported by Drive Unit Specification, Subject to Bike Configuration
  • Approximate Weight: 2.9 kg
  • Stock Type: OE Stock
  • Installation: Professional Installation and Compatibility Verification Recommended
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