Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
We've partnered with PedalSure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
Orbea Optima E50 Disc Electric Hybrid Bike 2020
The Orbea Optima E50 Disc Electric Hybrid Bike is the perfect partner for city-inspired errands, trips to the local café or longer jaunts along canal paths and country tracks. Assisted by a discrete motor system, the Optima E50 promotes enthusiasm and energy into any ride.
The hub motor system is lightweight and provides smooth and reliable assistance for up to 50 miles of use. It's regulated by an innovative magnetic system that adjusts the power level accordingly without producing drag when freewheeling. The iWoc Trio handlebar-mounted controller makes altering the level of motor assistance easy while riding, enabling the user to select the amount of help received at precisely the right time. A battery pack that is completely hidden inside the downtube of the frame is charged via a neat port that is integrated just above the bottom bracket area.
The aluminium frame is light and robust, features an eye-catching aesthetic and has a geometry that is inspired by the city to be comfortable for longer rides but nimble during rush hour. Sturdy wheels are low maintenance and are shod with big tyres that afford high amounts of extra comfort. An 8-speed Shimano gear setup provides a broad sweep of ratios enabling riding across any topography while reliable disc brakes provide composed stopping power in any weather conditions.
A Smartphone app connects to the motor and battery system to grant complete ride immersion. Included mudguards, luggage rack, front and rear lights and kickstand complete an already comprehensive spec sheet by increasing versatility and convenience.
Battery Specification
- Maximum Assist: 40Nm
- Motor Weight: 3.5kg (including the motor, battery, charging point and cabling)
- Range: 47 miles / 75km
- Battery Power: 36V, 250w
- Charge Time: 6-8 hours depending on conditions/temperature
Highlights
- A perfect companion for city trips and weekend rides
- Lightweight, rear hub motor provides smooth and reliable pedalling assistance
- Completely hidden internal battery
- iWoc TRIO handlebar controller regulates the power level of the motor, battery and lights
- Lightweight aluminium frame with stylish aesthetics
- Balanced, city inspired geometry
- Sturdy wheels with big, comfortable tyres
- 8-speed Shimano gears with a wide selection of ratios
- Powerful disc brakes
- Mudguards, a luggage rack, front and rear lights and a kick stand are all included
- Smartphone app enables deeper control and feedback of the motor system
Technical Specification
| Frame | Orbea Optima Hydroformed Alloy, Ebikemotion X35 internal battery |
| Fork | Orbea Optima 400mm Alloy Post mount |
| Headset | VP-Z104PD 1-1/8" Semi-Cartridge |
| Stem | Orbea TDS-D617 |
| Handlebar | Orbea City Riser Aluminium 640mm |
| Front Brake | Shimano TX805 Mechanical Disc |
| Rear Brake | Shimano TX805 Mechanical Disc |
| Brake Levers | Shimano Alivio BL-T4010 |
| Front Derailleur | NA |
| Rear Derailleur | Shimano Altus M310, 8-speed |
| Shift Levers | Shimano SL-M315, 8-speed |
| Cassette | Shimano HG200, 12-32 sprocket range, 8-speed |
| Crankset | Prowheel PRA105 42 tooth chainring |
| Front Wheel | Airline Corsa |
| Rear Wheel | Airline Corsa |
| Front Tyre | Kenda 1172 700x50c |
| Rear Tyre | Kenda 1172 700x50c |
| Saddle | Selle Royal Milo Plus DR |
| Seatpost | Orbea Alloy 31.6x400mm Offset 0 |
| Pedals | Available to be purchased separately |
| Accessories | SKS EDGE Alloy C56R mudguards, Orbea Optima hidden stay rear-mounted luggage rack, Sunon A017 chain guard, Joss Spanninga Kendo Steps front light, Joss Spanninga Lineo XDS Dinamo rear light, Ursus Power single adjust central kickstand |
| Range | 47 miles / 75km |
| Charge Time | 6-8 hours depending on conditions/temperature |
| Motor | Ebikemotion X35 25kmh max speed, Rear Hub Location |
| Ui/Remote | Ebikemotion iWoc TRIO |
| Battery | Ebikemotion 36V/6.9A ANT+ |
| Charger | Ebikemotion X35 |
| Wiring Harness | CAN BUS recharge point |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if specified), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.