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The Powerfly 4 Equipped outfits Trek's most affordable electric mountain bike with everything you need for rugged daily commutes and trail adventures. It's built with sturdy parts and it features a powerful Bosch smart system motor and Trek's user-friendly Removable Integrated Battery (RIB) system. You also get commute-ready accessories like mudguards, a rear rack and front and rear lights that are powered by the e-MTB system.
It's right for you if... You want an e-bike that can do double duty as a rugged commuter and a trail-worthy hardtail mountain bike. You want a lot of capability, quality and user-friendly features for an affordable price, like the customised tuneability and activity logging of the new smart system.
The tech you get A durable aluminium frame that fully encases a long-range 500 Wh battery for sleek looks and protection on the trail, a Bosch Performance CX smart system (250 W, 85 Nm) motor that assists up to 20 mph (25 km/h in Europe), a Bosch Intuvia controller, a 1x10 Shimano drivetrain and a SR Suntour suspension fork with lockout. Comes equipped with mudguards, a rear rack, and front and rear lights powered by the battery.
The final word Affordable, versatile, capable. This e-MTB is great for commuting, trail riding and rugged touring. It comes with a high-end Bosch smart system motor, RIB battery system and controller that are as reliable as they are easy to use.
Why you'll love it
Bosch's new smart system gives you all the same power and responsiveness with a new Bluetooth-connected LED remote and eBike Flow app that puts even more control and customisation at your fingertips
The bigger battery means you can adventure for longer between charges
The controller has Walk Assist and an intelligent e-MTB mode that automatically delivers the right amount of power based on your terrain
It comes equipped with lights, mudguards and a rear rack so you're ready to ride right from the start
The size S frame features a curved top tube that makes standing over the bike easier. Plus, Smart Wheel Sizing means you'll get the fastest wheel that fits – 29˝ wheels on larger frames, 27.5˝ wheels on smaller frames
Specifications *Please note – spec applies to all sizes unless listed separately
Frameset
*Frame: Size: XS , S - Alpha Platinum Aluminium, curved top tube, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armour, Boost148, 12 mm thru axle | Size: M , L , XL - Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armour, Boost148, 12 mm thru axle
*Fork: Size: XS - SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru axle, 80 mm travel | Size: S , M , L , XL - SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru axle, 120 mm travel
Max compatible fork travel: 120mm (526mm axle-to-crown), XS and S: 100mm (492mm axle-to-crown)
Wheels
Hub front: Formula DC-511, 6-bolt, Boost110, 15 mm thru axle
Max tyre size: Frame: 29x2.60" or 27.5x2.80" (XS & S: 27.5x2.60"), Fork: See manufacturer
Drivetrain
Shifter: Shimano Deore M4100, 10 speed
Rear derailleur: Shimano Deore M5120, long cage
Crank: FSA Bosch CK-220, 36T ring, 165 mm length
Chainring: FSA, 36T, steel
Cassette: Shimano Deore M4100, 11-46, 10-speed
Chain: KMC X10, 10-speed
Pedal: VP-536 nylon platform
Max. chainring size: 1x: 38T
Components
Saddle: Bontrager Commuter Comp
*Seatpost: Size: XS , S - Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length | Size: M - Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length | Size: L , XL - Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
Handlebar: Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width
Grips: Bontrager XR Endurance Comp, lock-on
*Stem: Size: XS - Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 50 mm length | Size: S , M - Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length | Size: L - Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length | Size: XL - Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 80 mm length
Head set: FSA IS-2, 1-1/8" top, 1.5" bottom
Brake: Tektro HD-M275 hydraulic disc
*Brake rotor: Size: XS , S , M , L , XL - Tektro, 6-bolt, 180 mm | Size: XS , S , M , L , XL - Tektro, 6-bolt, 203 mm
Brake Set: Tektro HD-M275 hydraulic disc
Rotor size: Max brake rotor sizes - Frame: 203mm, Fork: see fork manufacturer
Accessories
Battery: Bosch PowerTube 500 Wh, smart system
Charger: Bosch standard 2A, 230V, smart system
Controller: Bosch Intuvia 100, smart system
Motor: Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm
*Light: Size: XS , S , M , L , XL - AXA Blueline taillight | Size: XS , S , M , L , XL - AXA Compact Line 35, headlight
Computer: Bosch LED remote, smart system
Kickstand: Pletscher Comp Flex 18
Cargo rack: MIK-compatible alloy rear rack
*Mudguard: Size: XS , S - Trek Powerfly 27.5" custom mudguard | Size: XS , S , M , L , XL - Trek Powerfly custom mudguard | Size: M , L , XL - Trek Powerfly 29" custom mudguard
Weight
Weight: M - 26.60 kg / 58.65 lbs
Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
Trek reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
We hope that you find our website easy to use but if you do have any questions at all please feel free to call our sales team on 0208 508 0682 or email info@tritoncycles.co.uk for advice.
Payment - We accept most major credit and debit cards through our secure payment provider Sagepay. All transactions are 100% secure so you may shop with confidence that your details are safe.
0% finance available on selected bikes. Spread the cost of your new bike over 6-36 months. Min. 10% deposit. Terms and Conditions apply.
We also accept Cyclescheme vouchers, for details of how to place an order with a voucher please click here.
All purchases and refunds will be processed in Sterling (GBP). We are not liable for any currency fluctuations. Please be aware that this may result in your refund being less or more than what you originally paid in your local currency.
Standard Business Hours Monday - Friday: 09:00 - 17:00
Most Saturday: 09:00 - 12:00 (By appointment only. Please call in advance to organise.)
Sunday: Closed
Impact of COVID-19 on Delivery We are monitoring the impact of the COVID-19 coronavirus around the world. We are in constant contact with our couriers on any potential service impacts. Deliveries may experience a delay with the couriers.
Free Delivery Delivery is free on most orders over £40.00, with delivery starting from £3.95 for orders below this value. There are surcharges for international deliveries, off-shore deliveries and some areas of the UK. Postcodes that are considered to be remote or offshore are as follows: AB36-38, AB55-56, FK17-21, IV1-39, IV52-54, IV63, KW1-14, PA21-40, PH19-40, PH30-41, PH49-50, HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3. Accurate delivery costs will be provided at checkout where applicable. Our dispatch time for in-stock items is usually 24-48 hours and delivery typically takes a further 3-5 working days. Please ensure you select the correct delivery options to display the correct postage cost to avoid any delay on your order. Not selecting the correct options may incur additional charges (Please see 'Courier Selection' for more information).
Bikes at £1499.00 and under are subject to a delivery charge of £35.00 for postcodes in England and Wales. Bike deliveries to Scotland will have a charge of £100.00, excluding highlands and islands. We have limited deliveries for bikes to Scottish postcode areas. If you're not able to place an order with your delivery address please contact us to check.
Bikes All bikes are checked in our workshop prior to dispatch. We deliver most of our bikes fully built up in our own Triton Cycles vans. Please note - some bikes are delivered partially assembled - this varies from model to model, please call to confirm what building is required prior to ordering. Bike delivery times may vary depending on the delivery address.
Delivery for International Orders All international orders, including countries within the EU are sold exclusive of VAT but may be subject to import duties and taxes, which may be levied once a shipment reaches your country. For details of current customs charges please contact your local Customs authorities. UK VAT is not charged for orders delivered outside of the UK.
Is your country not listed on our website? Feel free to get in contact with us and we will quote you a price! Message us on our Contact Us page and make sure to include your postal code/zip code. We will not be able to deliver to PO BOX and BFPO addresses.
We will always try our best to meet agreed delivery times, however we cannot guarantee them due to third party couriers or workshop load. We shall not be liable for any consequential losses due to delayed delivery times.
The delivery charge for any international orders returned due to unpaid customs and duties charges will not be refunded.
Please note that for international returns the return shipping and any reverse duties & taxes are the responsibility of the customer.
Please Note: We are unable to ship DT Swiss products to the USA.
Courier Selection Choosing the incorrect shipping option for your country/location may cause delays as we may have to amend the order and apply any additional shipping fees. Any order cancellations due to a refusal to pay the correct shipping fees may incur additional processing charges.
Billing & Delivery Addresses Please ensure your billing & delivery address is correct when placing your order. We will do our best to ensure that all our customers receive their order but we are not responsible for any mis-delivery if the delivery address is incorrect.
Stock Check The majority of our products are usually in stock and we try to keep our stock levels as up-to-date and as accurate as possible. However sometimes our system may not be updated in time and a product may be out of stock despite the product page showing it as 'In Stock'. If you are interested in a product and would like to double check the availability of it, please feel free to contact us before placing your order.
Dispatched Dates/Due in Dates (Pre-orders) We try to provide as accurate as possible information on the arrival of our pre-order products. The dispatched dates/due in dates shown are an estimate of when the products will be available as provided by our suppliers. The dispatched dates/due in dates are subject to change. We will do our best to keep our customers updated.
At Triton Cycles we aim to provide a returns service that is simple and hassle-free.
Should you need to return anything to us, it is very important that you telephone us first to advise us of your intention and the reason why you wish to return the goods. If you're not completely satisfied with an item you may return it within 14 days of purchase, and as long as the item isn't fitted or used we're happy to receive it back for a refund or exchange. Return shipping costs in this instance are non-refundable.
If the item is being returned as a result of our error i.e. damaged, defective, wrong item sent etc, we will refund Royal Mail First Class or Standard Parcel postage costs. If this is the case please include a copy of your purchase receipt when you return the goods for inspection. Please DO NOT sign for goods if you think that they are damaged, or the packaging has been tampered with. Instead, refuse to accept the delivery and contact us immediately(within 3 working days) so that we can take the matter up with our courier. Replacements will be sent to you as soon as possible. Signing for goods later found to be unacceptably damaged in transit complicates negotiations with the courier in dealing with your complaint. However, if a minor component is missing or broken(e.g. a reflector) please DO NOT return the whole bike. Simply contact us and we will replace the part as soon as possible. Please DO NOT discard any original packaging until you are fully satisfied with your purchase. Should you need to return a bicycle, couriers will not transport a machine not in the original or suitable packaging. Warranty Claims: All goods purchased from Triton are covered by a full warranty and generally covers manufacturing faults and defects including poor workmanship. If you think your item is faulty and would like to make a warranty claim then please phone/email us before returning any goods - we may be able to solve your problem without you incurring any postage costs.
On bikes purchased and collected in store - We do not accept returns on bikes where you have simple changed your mind. All sales are done with good faith. Exchanges may be considered on unused items if we have suitable alternatives available.
All purchases and refunds will be processed in Sterling (GBP). We are not liable for any currency fluctuations. Please be aware that this may result in your refund being less or more than what you originally paid in your local currency.
The delivery charge for any international orders returned due to unpaid customs and duties charges will not be refunded. Please note that for international returns the return shipping and any reverse duties & taxes are the responsibility of the customer.
