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High Speed Gravel Racer

Conquer The Dirt

One thing that makes gravel such an exciting discipline is that there are so many different types of gravel styles and conditions a rider can face. The Factor LS meets all those challenges with the full intent to be the fastest, super capable gravel racing bike for pro and amateur cyclists alike. Made using lightweight carbon that can provide both comfort and durability, the LS represents your ticket to adventure.


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Lightweight And Responsive

When designing the LS, we were laser focused on keeping the frame lean, light, and responsive without being distracted by unnecessary add-ons. This is a bike that begs to be ridden at race speeds whether it’s rough terrain or smooth tarmac. Nimble and durable simultaneously, the Factor LS easily segues from city streets to forest trails and back again without missing a beat. The rigid chasse helps it climb like a dream and descend with confidence.

Designed For Fast Gravel Rides

The perfectly balanced geometry combined with the frame’s stiffness translate into powerful accelerations. With shorter seat stays and refined steering trail, racers maintain the ability to react in a heartbeat to the often unpredictable dirt road conditions while still running tires with appropriate volume for fast riding on rough gravel.

Broad Compatibility

Focusing on being fast whether riding over smooth tarmac or rough gravel, the LS offers a wide range of compatibility. Optimized to fit up to 40mm tires (measured size, different pressure and tread can affect fit), the LS can easily tackle tough gravel races, or fast road rides when paired with a 30-35mm tire. The frame is also compatible with 1x and 2x groupsets as well as both electric and mechanical shifting. This versatility allows the rider to find the perfect setup for any riding style.

Go Further Faster On Mixed Terrain Adventures

The Factor LS is all about our love of cycling and the places it can take you. Whether on smooth, fast pavement or grinding through loose gravel, it’s a bike that will keep you planted and having fun.

Carry Speed, Not Weight

Long grueling days in the saddle require the lightest and fastest gravel set-up. The LS is designed to carry what’s essential with mounts available for three bottle cages, a top tube Bento Mount, and space for a sleek frame bag.

Keeping Your Options Open

With our modular cable routing, the LS can accommodate electronic and mechanical shifting drivetrains. The frame also works both with 1x and 2x setups, which will allow riders to have the perfect gearing for their chosen adventures.

Frame Bag Compatibility

For those days in the saddle that do last into the night, having the capacity to carry extra clothing and nutrition makes a neatly tucked in frame bag an ideal addition without turning into an unwanted and destabilizing weight.

Taking a leaf out of our O2 road bike book, the LS shares many of the tube shapes with the added value of our kinked pencil thin seatstays and standard 27.2 seatpost. They help to dampen road vibrations for added comfort.

The Factor LS has been optimized for 40mm tires.

The T47 standard for threaded bottom brackets ensures a secure fit and easy maintenance. It allows for the use of a wide range of crank spindle diameters and helps keep the bottom bracket shell robust for exceptional power transfer.

Building the perfect bike means being able to fit your components of choice. The Factor LS accepts both electric and mechanical groupsets so you can choose which option works best for your riding needs.

FrameFactor Toray® & Nippon Graphite® Pan-Based Fiber
ForkFactor LS carbon
Seatpost27.2 Round, post not included
BarstemBlack Inc Integrated Barstem Reach 80mm, drop 120mm. Multiple stem lengths and bar widths available.
HeadsetFSA 1-1/8″ upper and 1-3/8″ lower bearings
Head Tube Diameter1-1/8″ upper and 1-3/8″ lower
Saddle Rail Clamps7x7 and 7x9
Bottom BracketT47A
Cable RoutingExternal
Compatible Components1x or 2x, Electronic or Mechanical
Brake typeDisc
Max Rotor Size160mm front & rear
Max Chainring52-tooth
Front axle12x100 Threaded
Rear axle12x142 Threaded
WheelsetBlack Inc 28|33
Wheel Size700c
Max Tire Clearance40mm measured
Manufacturer WarrantyLimited Lifetime Warranty
A Stack530547566585605
B Reach372378383392401
C Head Tube Angle71.5°71.9°72.3°72.3°72.3°
D BB Drop7676767676
E Trail60-6160-6159-6059-6059-60
F Fork Rake/Offset5050505050
G Chainstay Length420420420420420
H Wheelbase990998100510201035
I Bike Standover Height748772789809831
J Seat Tube Length455481507527552
K Seat Tube Angle74.5°74°73.5°73.5°73.5°
*All dimensions in mm.
Left Quote

In my opinion, the perfect gravel bike will be as close to a road bike as possible, and I think the LS frame is very close, if not spot on. When you look at the frame you can tell that Factor has used some of the know-how from the O2 frameset and made more room for bigger tires, added additional space for bottle cages and made the frame more resistant to small impacts from rocks and other hard objects.

Mads Christensen, former WorldTour Pro rider

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