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.
Trek Powerfly 5 Womens Electric Mountain Bike 2020
Trek’s Powerfly 5 Womens Electric Mountain Bike has an aluminium frame with internal cable routing and a downtube which houses the 500Wh battery, although thanks to the RIB design it is easily removed without recourse to tools for recharging. The Bosch Performance CX 250W motor offers four levels of assistance plus a walk mode so that the exact amount of help required can be dialled in from the Purion handlebar remote. Turbo adds 340%, Tour adds 140%, Eco adds 60% and eMTB intelligently adds between 140-340% depending on the conditions.
Tektro HD-M275 hydraulic disc brakes work in all weathers to help keep things under control, with just a light touch needed at the lever and the 12-speed SRAM SX Eagle drivetrain makes sure that it’s easy to select the required gear from the wide-range cassette. The XS and S sizes use 27.5” wheels whilst the M and L have 29” for better handling across the board.
Highlights
- Trek Alpha Platinum Aluminium frame with RIB
- RockShox Recon RL fork with 80/120mm of travel
- SRAM SX Eagle, 12-speed groupset
- Tektro HD-M275 hydraulic disc brakes
- Size-specific 27.5” or 29” wheels with 2.35” tyres
- Bosch Performance CX 250W motor and 500Wh removable battery
Technical Specification
| FRAME | Trek Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148 |
| FORK | RockShox Recon RL, Solo Air spring, Motion Control damper, e-MTB optimised, tapered steerer, 42/46mm offset, Boost110, 15mm Maxle Stealth, 120mm travel (80mm travel size XS) |
| STEM | Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree |
| HANDLEBAR | Bontrager alloy, 31.8mm, 15mm rise |
| FRONT BRAKE | Tektro HD-M275 hydraulic disc |
| REAR BRAKE | Tektro HD-M275 hydraulic disc |
| BRAKE LEVERS | Tektro HD-M275 hydraulic disc |
| FRONT DERAILLEUR | N/A |
| REAR DERAILLEUR | SRAM SX Eagle |
| SHIFT LEVERS | SRAM SX Eagle single-click, 12-speed |
| CASSETTE | SRAM PG-1210 Eagle, 11-50, 12-speed |
| CRANKSET | SRAM X1 1000, 36T, 165mm length |
| FRONT WHEEL | Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru-axle hub with Bontrager Kovee, double-wall, Tubeless Ready, 32-hole, 23mm width, Presta valve rim |
| REAR WHEEL | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm thru-axle hub with Bontrager Kovee, double-wall, Tubeless Ready, 32-hole, 23mm width, Presta valve rim |
| FRONT TYRE | Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 2.35 clincher (27.5” XS and S, 29” M and L) |
| REAR TYRE | Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 2.35 clincher (27.5” XS and S, 29” M and L) |
| SADDLE | Bontrager Commuter comp with integrated light |
| SEATPOST | Bontrager alloy 31.6mm |
| BATTERY | Bosch PowerTube, 500Wh |
| CONTROLLER | Bosch Purion |
| MOTOR | Bosch Performance CX, 250W, 75Nm, 25kph max assist |
| WEIGHT LIMIT | 136kg (bike, rider and cargo) |
| MANUFACTURER CLAIMED WEIGHT | 21.7kg size small |
| 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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