The Trek 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 SR Suntour suspension fork and Shimano CUES 10-speed shifting that’s ultra-durable and smooth.
Sunset Cycles offers the 2026 Trek Powerfly+ 4 Gen 5 hardtail e-bike in Gloss Radioactive Red/Matte Dark Star finish with up to 36 months 0% finance and free delivery.
The 2026 Trek POWERFLY range: Powerfly+ 4 Gen 5 (Dark Star/Dark Web) | Powerfly+ 4 Gen 5 (Mercury/Power Surge) | Powerfly+ 4 Gen 5 (Radioactive Red/Dark Star) | Powerfly+ 6 Gen 5 (Mulsanne Blue) | Powerfly+ 6 Gen 5 (Silver/Mercury) | Powerfly+ 6 Gen 5 (Sunburst/Dark Star) | Powerfly+ 8 Gen 5 (Crimson/Dark Carmine) | Powerfly+ 8 Gen 5 (Lunar Silver/Bronze Age)
| Frame & Fork | |
| Frame | Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Control Freak internal routing, Motor Armour, Boost148, 12 mm thru axle |
| Fork | Size: S SR Suntour XCR 34, air spring, 2CR damper, hydraulic lockout, tapered steerer, 44 mm offset, Boost 110, 15 mm bolt-on thru axle, 100 mm travel Size: M , L , XL SR Suntour XCR 34, air spring, 2CR damper, hydraulic lockout, tapered steerer, 44 mm offset, Boost 110, 15 mm bolt-on thru axle, 120 mm travel |
| Wheels & Tyres | |
| Hub front | Shimano TC500 alloy, CentreLock, 110x15 mm thru axle |
| Hub rear | Shimano TC500 alloy, CentreLock, 148x12 mm thru axle |
| Rim | Bontrager Connection, double-wall, 32-hole, 20 mm width, Presta valve |
| Tyre | Size: S Bontrager Montrose Comp, wire bead, 30 tpi, 27.5x2.40" Size: S Bontrager XT3 Comp, wire bead, 30 tpi, 27.5x2.40" Size: M , L , XL Bontrager Montrose Comp, wire bead, 30 tpi, 29x2.40'' Size: M , L , XL Bontrager XT3 Comp, wire bead, 30 tpi, 29x2.40" |
| E-System | |
| Battery | Bosch PowerTube 600 Wh, smart system |
| Charger | Bosch standard 2A, 230V, smart system |
| Computer | Bosch Purion 200 |
| Motor | Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC) |
| Drivetrain | |
| Shifter | Shimano U6000, 10-speed |
| Rear derailleur | Shimano CUES U6000 GS |
| Crank | FSA Bosch CK-220, 36T ring, 165 mm length |
| Chainring | FSA, 36T, steel |
| Cassette | Shimano CUES LG300, LINKGLIDE, 11-48, 10-speed |
| Chain | Shimano LG500, 9/10/11-speed |
| Pedal | VP-536 nylon platform |
| Components | |
| Saddle | Bontrager Commuter Comp |
| Seatpost | Size: 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 Comp, alloy, 31.8 mm, 40mm rise, 780 mm width |
| Grips | Bontrager XR Endurance Comp, lock-on |
| Stem | Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length |
| Head set | FSA IS-2, 1-1/8" top, 1.5" bottom |
| Brake rotor | Tektro, CentreLock, 203 mm |
| Brake Set | Tektro HD-M275 hydraulic disc |
| Rotor size | Max brake rotor sizes – Frame: 203 mm, min 180 mm, Fork: see fork manufacturer |
| Weight | |
| Weight | M – 23.10 kg/50.93 lbs |
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lbs). |
| Frame Size | Rider Height* (metric) | Rider Height* (imperial) |
| Small | 155 - 165 cm | 5'1" - 5'5" |
| Medium | 165 - 177 cm | 5'5" - 5'10" |
| Large | 177 - 188 cm | 5'10" - 6'2" |
| X Large | 188 - 195 cm | 6'2" - 6'5" |
| *This is for guidance only. You may be taller or shorter, it doesn't mean our bikes will not fit you. The best way to determine the correct bike size for you is to try one. Please contact us if you are in any doubt about the correct bike size for you. | ||