E-Bikes RES Hydro Series

RES U400 Men

RES U400 U40-01Bs(L)

The assembly of the product may differ from the photo. Be sure to check out the specifications.*
What is my size?
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About RES U400 Men

The RES U400 is a user-friendly, stylish, light-weight e-bike that is made for lightning-fast trips in and around the city. Traffic jams or parking stress are a thing of the past: with this city e-bike, you will cycle comfortably and carefree along city streets and quiet village roads. The battery of the RES U400 has a capacity of 360Wh, enough for hours of cycling fun with a push in the back.

This e-bike is perfect for commuting to work, a quick errand in town or a tour through the countryside. On the handy carrier you can easily take your laptop bag, daily shopping or everything you need for a fun day out. Furthermore, the light weight and the handy walking function make the RES U400 easy to take with you on public transport or upstairs in an apartment building. This bike is city-proof!

The RES U400 is powered by a rear wheel motor. The motor is just as powerful as a mid-motor system, but has a big advantage: it is lighter in weight. The integrated battery also contributes to the light weight of the bicycle.

The hydraulic disc brakes, LED lights on the front and back, and reflective stickers provide extra safety on the bike. The U400 is not only stylish, but also comfortable. The wide tyres provide good cushioning. With the geometry of the U400, you are assured of maximum comfort while riding.


Disc brakes

Visibility & Safety

Visibility & safety with the certified lock, lights and reflective decals

Integrated Battery

Integrated battery that results in a clean look and safety for the internal components


Strong and versatile carrier for all accessories


  • Fork RESU400 , Rigid Alloy Fork , Quick Release , Postmount Disc-brake
  • Rear brake: Alhonga Hydraulic Disc Brake , 180mm Rotor , Shimano compatible
  • Groupset Shimano 9 Speed
  • Rear derrailleur Shimano Altus , 9Speed
  • Cassette Shimano Altus , 9s , 11-36
  • Handlebar Deviant Bow , 680mm , 12mm rise , 9° backsweep
  • Stem Messingschlager 3D , 100mm , Black

About the RES family

The RES (Ridley Electric Support) product range covers our brand new urban E-bike range. In a world where the importance of urban mobility is growing every day, the RES range is offering a solution for both men and women who are looking for high quality e-bike. The development filosofy was focused on control, comfort and reliability. Depending on the model, we will offer 2 different frames: 1 man or trekking version or an unisex, step-through model.


What is my size?
A - -
B 500 540
C 550 560
D 160 170
E 73 73
F 69 69
G 445 445
H - -
I 1020 1030
J - -
S 565 575
R 570 580

Let us inspire you!

Can’t decide between a few colors or designs? Would you like to see a certain design in more detail? Then check out some of these cool designs, selected to help you choose. Let us inspire you!

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