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    Lithic Mountain Fork

    The Lithic Mountain Fork is a lightweight, versatile carbon option for mountain bikes. Thanks to swappable machined dropout components, it has adjustable offset and it is compatible with 110mm and 100mm hubs, as well as post mount and flat mount brakes. The fork ships with one dropout option based on your selection; the three others are available as replacement parts. The dual three-pack mounts and clearance for 29” x 3.0” tires make it great for unsupported backcountry riding, while the 624g bare fork weight keeps it light and fast for racing and riding trails.

    Native Brake Options for Post or Flat Mount

    The swappable machined dropouts allow this fork to be native for post mount or flat mount. Add the fork to a drop bar bike with flat mount brakes or to a mountain bike with post mount brakes. Best of all, when the flip chip is changed to alter offset, the brakes won’t need to be adjusted because they are mounted to the same machined aluminum dropout.


    110mm Boost or 100mm Non-Boost Hubs

    The fork is compatible with 110x15 Boost and 100x15 non-Boost hubs thanks to machined aluminum inserts in the dropout. This allows for different front wheels to be used on the same bike if you have multiple wheelsets. Both hub spacing options and brake mount options use the included Wolf Tooth M15x1.5 thru axle.

    Only one mount included. Alternate mounts sold separately.


    Adjustable Offset

    A machined aluminum flip chip in the dropout adjusts offset by 7.5mm. A fork’s offset – aka rake – contributes to a bike’s handling. With the flip chip in the front position, the 51.5mm offset makes for agile handling. In the rear position, the 44mm offset creates a more stable ride.


    Three-pack mounts

    Both arms of the fork have three-pack mounts for carrying extra gear. Attach a cargo cage via the three bolt holes to haul bags, bottles, burritos, and more for bikepacking and self-supported rides. Weight limit is 5.5 lbs per side.

    Suspension Correction

    The axle-to-crown is 498mm with the flip chip in the 51.5mm offset (front) position and 495mm with the flip chip in the 44mm offset (rear) position. The fork is optimal for bikes with geometry designed around a 100 - 140mm suspension fork – optimized for 120mm travel.

    29” x 3.0” Tire Clearance

    The Lithic Mountain Fork can clear standard mountain bike tires or plus tires up to 29” x 3.0”. Keep it fast and light with 29” x 2.25” tires for racing or ride 29” x 3.0” when you want to go way out there to escape cell phone service.

    We believe in your right to be able to fix your components. Crashes happen, parts get misplaced, things go bump in the night. All individual parts are available as replacement parts – yes, even the bare carbon fork itself.
    construction

    Simple
    Adjustability

    Swapping machined aluminum dropout components is easy to do at home and requires just a set of Allen keys and a torque wrench. It’s easy enough to do at a trailhead, though we recommend a home workshop.

    How to Change Dropouts navigate_next
    published_with_changes

    Replacement Parts Available

    All individual components of the Lithic Mountain Fork are available as replacement parts. If you break or lose one of the dropout pieces, replace just that one item instead of a whole new fork.

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    Tutorial
    Videos

    Video guides for installation and adjustment are available to walk you through home service on our YouTube channel.

    Video Tutorials navigate_next

    Specs

    Material Carbon
    Weight (including axle) Flat Mount Boost - 754g
    Post Mount Boost - 761g
    Flat Mount Standard (Non-boost) - 776g
    Post Mount Standard (Non-boost) - 781g
    Steerer Tube Length 275mm
    Steerer Tube Taper 1 1/8 - 1 1/2"
    Rake/Offset Adjustable - 44mm / 51.5mm
    Axle To Crown 495mm at 44mm Offset, 498mm at 51.5mm Offset
    Suspension Correction 120mm (Compatible with frames designed around 100mm-140mm Travel Forks)
    Brake Mount

    Swappable - Post Mount (160mm) or Flat Mount (160/180mm)

    Only one mount included. Alternate mounts sold separately.
    Hub Spacing

    Swappable - Boost 15x110mm or Non-boost 15x100mm

    Dropout parts for alternate hub spacing sold separately.
    Max Rotor Size 203mm
    Max Tire Clearance 29x3.0"
    Max Rider Weight 250 lbs
    Max Load (3 pack mounts) 2.5kg [5.5 lbs] per side
    Brake Bolt / T-nut Torque 10Nm
    Axle Torque 15Nm
    Compression plug torque 8Nm
    Stem spacers above stem 10mm MAX
    Stem spacers below stem 40mm MAX
    Stem steerer tube clamp torque 6Nm MAX
    Warranty 2 years