Humber Flex LT Electric Longtail Cargo Bike 250W

The Humber Flex LT is a long, strong and seriously practical longtail e-bike designed for families and anyone who needs to move more than themselves. The extended rear rack opens up real cargo capacity - room for two child seats, a double seat with safety bar, panniers, boxes or the weekly shop - while the low-entry frame and balanced geometry keep the bike easy to mount, manoeuvre and control, even when fully loaded. It's a one-bike answer to the school run, nursery drop-off, supermarket trip and weekend ride.

Power comes from a 250W Promovec rear hub motor delivering 60 Nm of torque and assistance up to 25 km/h, giving you smooth, confident pull-away even with a heavy load on the back. The Promovec DT7-XL battery is mounted centrally on the seat tube for optimal balance and is available in two sizes: Boost 540 Wh for everyday range or Long Range 720 Wh for longer trips and bigger loads. The intuitive Promovec Graphic Slim D700+ display offers 5 assist levels and a built-in walk-assist function, plus Bluetooth pairing with the Promovec e-connect app for ride data, customisation and more control.

What sets the Flex LT apart is how flexible it is. The Atran Velo System (AVS+) carriers on the front and rear take baskets, panniers, child seats, transport boxes and accessories - up to 10kg on the front and an impressive 54kg on the rear. The double kickstand with Smart Lift function makes parking effortless and rock-steady, even with children loaded up at the back, while integrated Herrmans front and rear lights keep you visible in any conditions.

Built around a durable aluminium frame backed by a 10-year warranty, the Flex LT is finished with reliable Shimano Altus 8-speed gearing, hydraulic Shimano MT200 disc brakes (180mm front, 200mm rear for extra stopping power), mudguards and a comfortable DDK saddle. Wide 20" VEE Tire Speedster 3.0" tyres deliver a quiet, planted ride on tarmac and rougher surfaces alike. Designed and tested for Nordic conditions, backed by 25 years of Promovec engineering experience and supported by a wide network of local dealers and workshops, it's a robust, family-ready longtail. Available in Black or Midnight Purple.

Please note the battery on this model is fixed.

Maximum Assisted Speed: 15.5mph / 25km/h
Motor: Promovec rear hub motor, 36V 250W, 60Nm torque
Motor Type: Rear hub motor
Motor Power: 250W
Motor Torque: 60Nm
Battery: Promovec DT7-XL, available in Boost 540Wh (max range between 50 to 80 km) or Long Range 720Wh (max range between 80 and 125 km)h, mounted on the seat tube, fixed (not removable)
Battery Type: Fixed, frame-mounted
Battery Warranty: 5 years
Display: Promovec Graphic Slim D700+, 5 assist levels, walk-assist function, Bluetooth connectivity to Promovec e-connect app
Walk Assist: Yes
Frame: Aluminium, longtail design with low step-through entry, semi-integrated cable routing
Frame Warranty: 10 years
Stem: Fixed, 60mm
Handlebar: Wide, ergonomic
Grips: Ergonomic
Gear Shifters: Shimano Altus, 8 speed
Number of Gears: 8
Front Brake: Shimano MT200 hydraulic disc, 180mm rotor
Rear Brake: Shimano MT200 hydraulic disc, 200mm rotor
Brake Levers: Shimano MT200 hydraulic disc
Tyres: VEE Tire Speedster, 20 x 3.0"
Mudguards: Yes
Saddle: DDK Comfort
Front Light: Herrmans fixed headlight
Rear Light: Herrmans fixed rear light
Front Rack: Atran Velo System (AVS+), up to 10kg load capacity
Rear Rack: Extended Atran Velo System (2 x AVS+ rear), up to 54kg load capacity
Child Seat Compatible: Yes - capacity for two child seats, or a double seat with safety bar
Kickstand: Yes, double support legs with Smart Lift
Basket: Optional accessory
Colours: Black, Midnight Purple
Equipment: Ergonomic handles, flexible Atran Velo System (AVS+) front and rear for baskets
Not Yet Included: Child Seats, Double seat, panniers and other accessories

Bike weight incl. 20 Ah battery: 31 kg
Maximum user weight: 100 kg
Maximum load, front rack: 10 kg
Maximum load, rear rack: 54 kg
Total maximum weight: 195 kg

Humber electric cargo bikes are delivered fully assembled with complementary white-glove service. This includes a personalised handover with your fully built unboxed bike ready to ride.

Delivery is typically within 3-6 working days from your order date.

Due to its longtail size, please ensure you have suitable access and space prior to delivery. Contact us if you have any questions about this.

Please Note: There may be a small shipping surcharge for remote areas. If relevant, you will be contacted after your order.

Suitable for most UK adults. The frame is 44cm / 17".

Dimensions

• Height: 107 cm
• Length: 204 cm
• Width: 75 cm

With Humber Bicycles you get the following guarantees:

• 5-year warranty on battery*
• 3 year warranty on motor
• 10 year warranty on frame

*If the battery is registered on promovec.dk

Buyline Finance - 0% APR Over Up To 11 Months

With Buyline Finance, you can spread the cost of your new wheels across up to 11 monthly payments with 0% APR. Simply choose between 6, 9, 10, or 11 month payment plans and select the deposit you wish to pay (between 0-50%).

For further information or to order with Buyline, check out our dedicated finance page here (not through checkout on our website).

Other Ways To Pay

We also accept:

• All Major Credit/Debit Cards (inc. Amex)
• PayPal
• Klarna
• Bank Transfer

The UK Cycle to Work Scheme is a government initiative (salary sacrifice) aimed at promoting healthier lifestyles and reducing environmental impact.

It allows employees to save money and commute with a new bike and accessories, spreading the cost over tax-free monthly instalments through your employer, potentially saving you up to 42% of the cost. It's a brilliant way to get an e-bike without breaking the bank!

To find out more, order through the scheme, or ask any questions, check out our dedicated Cycle to Work page.