Cortina E-U4 Next E-Bike Women 28" 57cm 7S - Muted Sage

EAN 8719461064415
Brand: Cortina
Product Model: 910771

Out of Stock

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Size Chart
Supplier Info

The Cortina E-U4 Transport Next DB7 AL MM 2026 Ladies bike is the first Cortina model equipped with the new Bosch smart system. The well-known Cortina U4 has been recognized for many years as a highly reliable bike with its stunning appearance. Now that this bike has hit the market with the Bosch system, we can truly call it a quality bike.

This bike is available in multiple colors and features a low step-through for optimal ease of use. With an aluminum frame, various frame heights, and a maximum load capacity of 120 kg, this electric transport bike is both strong and elegant.

Cortina E-U4 Transport Next DB7 AL MM 2026 Ladies
The Bosch system on the Cortina E-U4 Transport Next DB7 AL MM 2026 Ladies is whisper-quiet and offers you 4 levels of assistance along with a walk assist feature. The bike comes standard with a 500 Wh battery but can be upgraded to a 625 Wh battery. The silent mid-motor ensures that you always arrive safely at your destination with the right level of pedal assistance.

Quality Bike
As previously mentioned, the Cortina E-U4 Transport Next DB7 AL MM 2026 Ladies is a true quality bike. With its hydraulic rim brakes and 7 gears, you will always be well-equipped.

The CST Palmbay tires with anti-puncture layer, the Selle Royal Gipsy saddle, and the Cortina Dakar grips provide ultimate riding comfort. The rear and front racks are compatible with the MIK and MIK-HD mounting system, allowing you to easily attach accessories or bags.

The Cortina E-U4 Transport Next DB7 AL MM 2026 Ladies is equipped with powerful lighting that is directly powered by the battery. The Cortina Amsterdam 18 lux front light and the Spanninga Pling rear light ensure excellent visibility in any weather conditions.

The bike features an Abus Amparo 4650R ART-approved lock, making it extra secure. With the dual hand brakes and stable design, you can ride safely at higher speeds or with extra luggage.

Weighing in at 29 kg including the battery, this e-bike is robust yet agile.

- Motor Position: Mid
- Motor Brand: Bosch Active Line Smart
- Battery Capacity: 500 Wh
- Gears: Shimano Nexus 7
- Brakes: Hydraulic Disc Brake
- Fork: Non-Suspension

Specifications:
Brand: Cortina
Model: E-U4 Next
Type: E-Bike
Frame Material: Aluminum
Motor Power: 40N m
Assistance Levels: 4 + walk assist
Number of Gears: 7
Wheel Size: 28
Brake Type: Hydraulic Disc Brakes
Frame Height: 57
Brake System: Dual Hand Brake
Display Type: Bosch Purion 200
Motor Type: Bosch Active Line Smart System
Tire Size: 28 x 2.00
Power: 600W
Color: Muted Sage

Children are generally taught to ride a bike at an early age.
The right size bicycle allows for a comfortable and safe riding position for children and teens, and stimulates maximum performance of the muscles.
Aside from being less tiring and preventing overexertion of the knees, the right size bike encourages regular bike use and cycling in general.
This size is usually based on the wheel diameter.

Children's Bicycle Size Chart
Age (Years)	Clothing Size	Length	Recommended Children's Bike Size
2 - 4	98 - 104	± 95 cm	12 inch
3 - 5	100 - 106	± 100 cm	14 inch
4 - 6	104 - 110	± 105 cm	16 inch
5 - 7	110 - 116	± 110 cm	18 inch
6 - 8	116 - 122	± 115 cm	20 inch
7 - 9	122 - 128	± 122 cm	22 inch
8 - 12	128 - 140	± 130 cm	24 inch
10 - 14	140 - 152	± 145 cm	26 inch

This sizing chart for children's bicycles is based on age and length.
Not everyone is the same length at a certain age, so it’s advisable to determine the bicycle size based on length.
The most important factor in determining the right bike size, is the inseam length.

Body Length	Inseam Length	Recommended Bike Size
120 - 140 cm	<52 cm	16 inch
52 - 74 cm	20 inch
> 74 cm	24 inch

140 - 160 cm	< 62 cm	20 inch
62 - 80 cm	24 inch
> 80 cm	26 inch

> 160 cm	< 74 cm	24 inch
> 74 cm	26 inch

Most children that are 120 to 140 cm tall can ride a 20 inch bike, while children between 140 and 160 cm tall can ride a 24 inch bike.
A 26 inch bike is generally suitable for teenagers who are over 160 cm tall.
The right frame height is also very important: it is the first step to finding the correct riding position.
A bicycle frame that is too small or too large can lead to limited height adjustment options, which in turn may lead to an inconvenient height difference between the saddle and handlebars.
Use the inseam length to determine which frame size is right for you.
You can do this by measuring the inside of your leg, from the top of the thigh down to the floor.

Adult Bicycle Size Chart

Inseam Length		Recommended Frame Size
≈ 66 cm		43 cm
≈ 74 cm		48 cm
≈ 77 cm		50 cm
≈ 78 cm		51 cm
≈ 80 cm		52 cm
≈ 83 cm		54 cm
≈ 85 cm		55 cm
≈ 86 cm		56 cm
≈ 89 cm		58 cm
≈ 91 cm		61 cm
≈ 93 cm		65 cm

Choose the frame size closest to your results.
When in doubt, it’s best to pick the smaller frame size.
If you have any questions about determining the right bicycle size, you can always give us a call or send us an e-mail.