Powerfly FS 9 EQ is a full suspension electric mountain bike thats built for singletrack sessions and rugged commutes. You get high-end parts, a powerful drive system, and a rad suspension setup for tackling rougher trails. And, it comes with utility-focused features for daily riding, like fenders, lights, and a rear rack.

• It comes equipped with fenders, a rear trunk rack, and lights that are powered by the battery so youre ready to ride right from the start
• It gives you the best of both worlds with full-suspension for descending, and power for the ups: it soaks up rugged terrain so you can ride the Bosch pedal-assist smart system to its full potential
• Wide Line Comp 30 wheels provide more tire support so you get better traction and control
• Treks Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy to remove the battery without tools, and lets you mount a water bottle cageeven on full suspension e-MTBs
• Powerfly FS frames feature a curved top tube that makes standing over the bike easier. Plus, Smart Wheel Sizing means youll get the fastest wheel that fits29 wheels on larger frames, 27.5 wheels on smaller frames

Removable Integrated Battery

RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. Its the most convenient way to remove your battery for transport, security, or just easier charging.

Bosch Performance Line CX motor

Bosch Performance Line CX sets the standard for eMTB performance with up to 85Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.

Bosch LED Remote

The Bosch smart system LED remote lets you easily change assist modes, activate walk mode, or turn on optional lights. The bright LEDs are easy to see in any light, and show you your battery level and assist mode at a glance.

Bosch Kiox 300 display

The Bosch Kiox 300 is tough, compact, and easy to read with a full-color display. Keep ride data right where you can see it including rider power, motor output, speed, remaining range, and more.

Adventure-ready accessories

Powerfly Equipped gives you maximum utility thanks to pre-installed accessories. You get a kickstand, front and rear lights, plus fenders and a rear rack custom made for clean integration.

Bosch eBike Flow app

The new eBike Flow app turns your ride into a personalized experience. Use it to customize your motors assist behavior, track your ride stats, and integrate your data with apps like Strava and Apple Health. Theres even handy features like navigation and service reminders.

Geometry Chart

XS (27.5″ WHEEL)S (27.5″ WHEEL)M (29″ WHEEL)L (29″ WHEEL)XL (29″ WHEEL)

function openTab(evt, tabName) { // Hide all tab content var i, tabcontent, tablinks; tabcontent = document.getElementsByClassName(“tabcontent”); for (i = 0; i < tabcontent.length; i++) { tabcontent[i].style.display = "none"; // Hide all tab contents tabcontent[i].classList.remove("active"); } // Remove the 'active' class from all tab links tablinks = document.getElementsByClassName("tablinks"); for (i = 0; i < tablinks.length; i++) { tablinks[i].classList.remove("active"); } // Show the clicked tab content and add 'active' class to the clicked tab document.getElementById(tabName).style.display = "block"; document.getElementById(tabName).classList.add("active"); evt.currentTarget.classList.add("active");}// Initialize: Show the first tab content by defaultdocument.addEventListener("DOMContentLoaded", function() { document.getElementById("SM").style.display = "block"; // Ensure first tab content is visible});