Aluminium full-suspension electric mountain bike Trek Powerfly+ FS 8 red: Bosch CX 800 Wh, Kiox 300, 24.48 kg

Trek Powerfly+ FS 8 Lava: colour display and powerful braking for exploring

A Bosch Kiox 300 colour display on the bar, an 800 Wh battery in the frame: the Trek Powerfly+ FS 8 Gen 4 is made for exploring trails you don't know yet. This aluminium full-suspension electric mountain bike runs 130 mm at the front and 120 mm at the rear, with wireless SRAM GX AXS and four-piston SRAM DB8 brakes, for 24.48 kg in size M according to Trek. Its Gloss Lava/Matte Dark Web colourway contrasts a gloss lava red with a matt black.

Technical specifications

Who is it for?

For the adventurous mountain biker who likes to follow their data on the move and head far from home, and for the rider looking for powerful braking on long technical descents. Offered here in S, M and XL.

The LVR workshop view

The ABP pivot, key to the aluminium frame. The ABP pivot, located on the rear axle, separates braking forces from the work of the suspension: when you brake hard on a broken-up slope, the shock keeps tracking the ground instead of stiffening up. Combined with the UDH hanger, which takes the T-Type derailleur directly, this aluminium frame gives this FS 8 a sound base for high-end components.

Put simply: at 24.48 kg in M, this FS 8 is the lightest Powerfly+ FS in our selection, and the only one to combine the Kiox 300 colour display with a wireless SRAM AXS drivetrain. It is the full-suspension Powerfly+ for anyone who wants the most complete spec without leaving the aluminium frame behind.

The Kiox 300 shows speed, battery level and assist mode on a colour screen, so you can keep an eye on your reserve on unfamiliar trails. Bosch system updates go through the eBike Flow app, which also lets you customise the modes. A regulatory reminder: the assist stops at 25 km/h, for a 250 W rated motor.

The four-piston SRAM DB8 brakes have a progressive bite, easy to modulate on the dusty ground around Béziers. On a bike of this mass, that is a real safety gain on the descents of the Caroux. Their mineral oil is also simpler to maintain; we recommend an annual bleed.

Which Powerfly+ FS should you choose?

Our take: this FS 8 is the only Powerfly+ FS to combine the Kiox 300 and SRAM AXS, at 24.48 kg in M. The Shimano XT Di2 FS 8 keeps the Kiox 300 with a 150 mm fork for 400 g more.

Your questions

Why buy from LVR Cycles? In Béziers, we configure your Kiox 300 and the Bosch Flow app, bleed the DB8 brakes and set up the Fox suspension on your Powerfly+ FS 8 before handover.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.