Trek Powerfly+ 8 Gen 5 2025 Electric Mountain Bike

The Powerfly+ 8 is a rugged full-power hardtail electric mountain bike that's made to conquer your every adventure. Its sturdy alloy frame makes it a versatile choice anywhere from alpine trails to urban exploration, and the powerful Bosch Performance Line CX motor gives you the boost you crave when the track ahead gets steep.

It comes ready to roll with parts that make a difference, like Tubeless Ready wheels, a dropper post and an upgraded Shimano SLX and XT blend drivetrain.

---

## Key Features

* Removable Integrated Battery (RIB 2.0) makes it easy to remove your battery for more convenient charging or travelling, and you don’t have to worry about dropping it thanks to a secondary safety catch.
* Bosch’s Performance Line CX 85 Nm motor is lighter and quieter than ever, without wavering on natural-feeling support for crushing epic rides and the longest, steepest climbs.
* Shimano XT is the original mountain bike groupset and trusted by generations of mountain bikers around the world. Whatever the trail, wherever you ride, XT is your solution for mountain biking today. Reliable shifting. Superior braking. Intuitive maintenance. XT is the high performance workhorse you can count on.
* The Powerfly+ delivers a full-assist ride that's as versatile as it is powerful

---

## Specifications

### Frameset

* 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: Fox AWL Rail, Rail 2.0 damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 180 mm direct mount, 100 mm travel, 27.5-29

### Wheels

* Rims: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110 Front, Boost148 Rear, 15 mm thru axle, 29
* Tyres: Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5-29.2x2.60

* Crankset: E*thirteen E*spec Plus, 160 mm length
* Shifters: Shimano SLX M7100, 12-speed
* Rear Derailleur: Shimano XT M8100, long cage
* Chain: Shimano SLX M7100, 12-speed
* Cassette: Shimano SLX M7100, 10-51T, 12-speed### Components

* Handlebar: Bontrager Comp, alloy, 31.8 mm, 40mm rise, 780 mm width
* Stem: Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
* Grips: Bontrager XR Endurance Elite
* Brakes: Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper
* Saddle: Bontrager Commuter Comp
* Seatpost: Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6 mm, 310 - 450 mm length

### E-System

* Battery: Bosch PowerTube 800 Wh, smart system
* Motor: Bosch Performance Line CX, 20 mph / 32 km/h max assist
* Display: Bosch Kiox 300, smart system
* Battery Charger: Bosch standard 4A, 230V, smart system

---

## Trek Powerfly Sizing

| | S | M | L | XL |
| ----- | ----- | ----- | ----- |
| Rider Height (cm) | 155 - 165 | 165 - 176 | 177 - 188 | 188 - 195 |
| Inseam (cm) | 74 - 78 | 79 - 83 | 84 - 89 | 89 - 91 |