TREK POWERFLY+ 4 GEN 5 600Wh HARDTAIL eMTB BIKE 2025 MATTE MERCURY/GLOSS POWER SURGE

The Powerfly+ 4 is an adventure-ready electric mountain bike that doesn't break the bank.

It's ready to explore anywhere from rugged commutes to light singletrack with a rugged aluminium frame, bump-smoothing suspension fork and a powerful Bosch Performance Line CX motor that boosts you up and over steep climbs.

Key Features Trek Powerfly+ 4 Gen 5 e-MTB Bike 2025

• RIB 2.0 removable integrated battery: Easy to remove for travel and storage, and it's virtually rattle-free while you ride.
• Bosch Performance Line CX motor: Delivers plenty of torque for steep, punchy climbs and is easy to control with the Purion 200 remote – plus you can customise it in the eBike Flow app.
• Compatible with Bosch PowerMore Booster Batteries: Want to ride even further? You can even upgrade the 600 Wh battery for a bigger 800 Wh option.

Full Specification

• Frame: Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle
• Fork: SR Suntour XCR 34, air spring, 2CR damper, hydraulic lockout, tapered steerer, 44mm offset, Boost 110, 15mm bolt-on thru axle, 120mm travel
• Motor: Bosch Performance Line CX, 250 Watt, 85 Nm, magnesium body, 20 mph (25 km/h) max assist
• Battery: Bosch PowerTube 600Wh, smart system
• Controller: Bosch Purion 200
• Gear Shifters: Shimano U6000, 10 speed
• Chainset: FSA Bosch CK-220, 36T ring
• Rear Cassette: Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed
• Chain: Shimano LG500, 9/10/11 speed
• Front Derailleur: N/A
• Rear Derailleur: Shimano CUES U6000 GS
• Bottom Bracket: Sealed Bearing
• Pedals: VP-536 nylon platform
• Rims: Bontrager Connection, double-wall, 32-hole, 20mm width, Presta valve
• Front Hub: Shimano TC500 alloy, centrelock, 110x15mm thru axle
• Rear Hub: Shimano TC500 alloy, centrelock, 148x12mm thru axle
• Tyres: Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi, 29x2.40"
• Brakes: Tektro HD-M275 hydraulic disc
• Handlebars: Bontrager Comp, alloy, 31.8mm, 40mm rise
• Handlebar Grip: Bontrager XR Endurance Comp, lock-on
• Headset: FSA IS-2, 1-1/8" top, 1.5" bottom
• Stem: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree
• Saddle: Bontrager Commuter Comp
• Seatpost: Bontrager alloy, 31.6mm, 12mm offset
• Accessories: N/A
• Weight: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We 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.

At All Terrain Cycles, we want you to ride with confidence every time. To ensure your bike or e-bike stays in peak condition, here are some essential safety and maintenance tips.

Bicycle Safety 

Always wear a helmet – Safeguard against head injuries by using a properly fitted, safety-certified helmet.

Perform pre-ride checks – Before each ride, verify that brakes, tyres, and gears are in good working order.

Stay visible – Utilise lights and reflective gear when cycling in low-light conditions.

Follow road rules – Ride responsibly and remain aware of your surroundings.

Aftercare for Your New Bike Initial Check-Up (First 50-100 miles)

Gear Adjustment – New cables may stretch slightly; have a qualified mechanic check and adjust them.

Brake & Wheel Check – Inspect brakes for wear and ensure wheels are aligned properly.

Lubrication – Apply chain oil and check bolt tightness to maintain smooth performance.

Tyre Pressure – Regularly monitor to prevent flats and enhance efficiency.

Pedals - Ensure pedals are still tight and correctly fitted.

Routine Maintenance (Every Few Weeks)

Chain Care – Clean and lubricate your chain to minimise wear and prolong its life.

Brake Safety – Check brake pads and responsiveness before each ride.

Tyre Inspection – Look for punctures and ensure correct air pressure.

Handlebar & Stem Alignment – Confirm they are tight and secure to prevent instability.

Frame Safety Check – Look for any signs of damage or cracks.

Pedals - Ensure pedals are still tight and correctly fitted.

Professional Check-Ups

Have your bike serviced at least once a year, or more frequently if you ride often.

Aftercare for Your New Electric Bicycle (e-Bike) Initial Check-Up (First 50-100 miles)

Battery Care – Fully charge your battery (if required) before the first ride and store it in a dry, moderate-temperature environment.

Avoid Overcharging – Unplug the charger once fully charged to extend battery life.

Pedals - Ensure pedals are still tight and correctly fitted.

Routine e-Bike Maintenance (Every Few Weeks)

Motor Inspection – Listen for unusual noises and ensure smooth operation.

Battery & Connection Checks – Inspect cables and connectors for dirt, moisture, or damage.

Pedals - Ensure pedals are still tight and correctly fitted.

Seasonal e-Bike Maintenance

Check Electrical Components – Ensure wires and connections are clean and secure.

Professional Servicing – Have your e-bike inspected at least once a year or every 500-1000 miles for optimal performance.

By following these aftercare guidelines, you’ll help ensure that your bicycle runs smoothly, lasts longer, and remains a joy to ride. Stay safe and enjoy the ride!

Read our full advice

If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk