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.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Orbea Keram Max Electric Mountain Bike 2021
A comfortable and confidence-inspiring ride, the Orbea Keram Max Electric Mountain Bike helps you conquer more of the terrain you never thought possible. With 120mm of plush front suspension and a powerful Bosch motor giving you a boost when you need it, you'll enjoy every minute of the ride.
The Bosch Performance CX Cruise motor provides 85Nm of power, with the excellent Extended Boost mode applying more power in trickier situations to actively smooth out sharp inclines or twisting corners. A 500Whr battery will see you through a long 65km ride, so you can enjoy the trails all day long or explore further than before.
The fantastic Shimano components on this bike include a 12-speed gearset with Deore shifters and an XT rear derailleur. Hydraulic disc brakes are ideal for scrubbing off speed or stopping with modulation. The Mach1 Klixx wheels are size-specific, with smaller 27.5" option on the size S frame and 29" on M to XL.
Browse our range of Orbea electric mountain bikes today.
Highlights
- Hard Tail e-MTB designed for a more comfortable position
- Size-specific wheels provide consistent handling across the range
- Marzocchi Bomber Z2 suspension fork with 120mm of travel
- A fun and easy bike to ride
- 500Wh battery for a long day out on the trails
- Bosch Performance CX Cruise motor has 85Nm of torque to tame the trails
- Shimano Deore M6100 shifters
- Shimano XT M8100 12-speed rear derailleur
- Shimano hydraulic disc brakes
Battery Specification
- Maximum Assist: 85Nm up to 25km/hr
- Motor Weight: 2.9kg
- Battery Power: 500Wh
- Range: 65km/40 miles (depending on power mode selected and trail conditions)
Technical Specification
| Frame | Orbea Keram 2019, Hydroformed Alloy 6061, Hide out battery technology, bottle cage and dual battery compatible and hidden kickstand compatible |
| Fork | Marzocchi Bomber Z2 120 QR15x110 E-Bike Optimised |
| Stem | Orbea Alloy 31.8mm interface 7º |
| Handlebar | Orbea OC1 Flat, 31.8mm, 740mm width |
| Front Brake | Shimano MT200 hydraulic disc |
| Rear Brake | Shimano MT200 hydraulic disc |
| Brake Levers | Shimano MT200 hydraulic disc |
| Front Derailleur | N/A |
| Rear Derailleur | Shimano XT M8100 SGS Shadow Plus, 12-speed |
| Shift Levers | Shimano Deore M6100, 12-speed |
| Cassette | Sun Race CSMZ80 11-51t, Metalic E-bike, 12-speed |
| Crankset | Orbea PW EB04-NW32 G4 |
| Chain | KMC e12 Turbo Silver, 12-speed |
| Front Wheel | Mach1 Klixx 23c Tubeless Ready clincher (Size Specific) |
| Rear Wheel | Mach1 Klixx 23c Tubeless Ready clincher (Size Specific) |
| Front Tyre | Maxxis Ikon 2.20" FB 60 TPI Dual, clincher |
| Rear Tyre | Maxxis Ikon 2.20" FB 60 TPI Dual, clincher |
| Saddle | Selle Royal 2077 DRN |
| Seatpost | Orbea Alloy 31.6x400mm Offset 0 |
| Pedals | Available to be purchased separately |
| Accessories | Abus battery powertube lock PLUS |
| Battery | Bosch Powertube 500Wh Horizontal BBP280 |
| Ui/Remote | Bosch Performance Purion |
| Motor | Bosch Performance CX Cruise (25km/h) BDU450CX |
| Charger | Bosch Compact Charger 2A (100-240V) Worldwide |
| Electric assisted speed limit | 15.5 mph / 25 km/h |
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 included), 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. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
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