IN BRIEF
The Btwin OWURU LD 920 E, an electric city bike with an automatic gearbox, drops from €2499.99 to €1999.99 during France’s summer sales: €500 less. Its OWURU mid-drive motor changes gear ratio on its own, with no derailleur and no shifter. Decathlon claims up to 150 km of range in eco mode thanks to a 702 Wh battery. The offer runs until 21 July 2026, while stocks last.
| Sale price | €1999.99 (down from €2499.99) |
| Motor | OWURU, mid-drive — 250 W nominal, 65 Nm |
| Transmission | Automatic continuously variable transmission (CVT) |
| Top assisted speed | 25 km/h |
| Battery | 702 Wh, removable |
| Claimed range | 80 to 150 km depending on mode |
| Brakes | Tektro hydraulic discs (180 / 160 mm) |
| Fork | Headshock, 30 mm of travel |
| Tyres | Vittoria E-Randonneur tyres, 700 × 38C |
| Weight | around 26 kg |
| Sizes | High-step frame M / L / XL, step-through frame S / M / L (1.55 m to 1.95 m) |
| Full charge | around 4 hr 30 min |
On the Btwin LD 920 E, there is no derailleur, no shifter and no chainring to pick. The rider pedals, and the bike works out the right gear ratio by itself. It all happens inside the OWURU mid-drive motor, which varies the ratio continuously according to the gradient and the effort. Decathlon has just taken €500 off it for the summer sales.
An automatic gearbox, like in a car
The OWURU motor, developed by Belgian company E2 Drives, houses a continuously variable transmission — the same CVT principle found on some hybrid cars. Instead of jumping from one sprocket to the next, it varies the ratio smoothly. The system picks the gear ratio itself, based on the terrain and the force applied to the pedals.
The rider only sets one thing: the pedalling cadence they want to hold, between 40 and 90 revolutions per minute. The bike then works to keep them there, uphill as well as on the flat. The motor delivers 65 Nm of torque for 250 nominal watts, with assistance cutting out at 25 km/h as European regulations require.
A battery in the frame, up to 150 km claimed
The 702 Wh battery slides into the down tube and comes out with a key so it can be charged indoors. Decathlon quotes three range figures depending on the mode: 150 km in eco, 110 km in standard and 80 km in boost. A full charge takes around 4 hr 30 min.
Those figures remain manufacturer claims. In real use, published tests come out closer to 60 to 90 km depending on the terrain, the load carried and the assistance level — the sort of figure expected from a city bike of this size.
Kitted out for everyday riding
The rest of the spec sheet is that of an unapologetic city bike. Braking comes from Tektro hydraulic discs, 180 mm at the front and 160 mm at the rear. The fork includes a 30 mm Headshock damper to soak up cobbles and potholes, and the Vittoria E-Randonneur tyres in 700 × 38C strike a good balance between comfort and rolling speed.
On the practical side, the rear rack is rated up to 27 kg and takes a child seat, the mudguards and the 30 lux lighting are integrated, and a frame lock is fitted as standard. All in, it weighs around 26 kg on the scales. The 6061 aluminium frame comes in a high-step version (sizes M, L, XL) or a step-through one (S, M, L), for riders from 1.55 m to 1.95 m tall.
€500 less until 21 July
Sold at €2499.99 before the promotion, the high-step LD 920 E falls to €1999.99 during the summer sales, a discount of €500 — around 20% of the price. The cut applies to all three sizes, while stocks last, until 21 July 2026. The bike’s page on the Decathlon website lists the colours and sizes available.
At that price, the automatic gearbox gamble becomes a good deal cheaper to try. Whether the idea — pedalling without ever changing gear — wins over more than the merely curious remains to be seen.
