Manitou | Mastodon Pro - Extended / 100mm
Manitou | Mastodon Pro -
Manitou | Mastodon Pro -
Manitou | Mastodon Pro -
Manitou | Mastodon Pro -
Manitou | Mastodon Pro -

Mastodon Pro - Gen 2


Regular price $899.99 Sale price$449.99 Save $450.00
Shipping calculated at checkout.

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  • Inventory on the way

Need help finding the right fork? Check out our Fork Fitment Guide


Mastodon is the real-world trail suspension for fatbikes. This fatbike fork delivers all-temperature performance, working equally well in winter or summer, soaking up chatter and big hits. Extended ride height versions fit up to 26×5.15” / 27.5×4.5” tires. Standard ride height versions fit up to 26×4” / 27.5×3.8” tires on the snow, or taking on shimmering hot sand like a pro. All-temperature performance born of frigid winter ride-testing. 34mm trail chassis is stiffer and steers more precisely than any other fatbike suspension fork.

    •100mm and 120mm forks are both internally adjustable in 10mm increments from 100-140mm of travel.
    •Dorado Air Spring
    •MC2 Compression Damping
    •TPC Rebound Damping
    •26", 27.5"

    •Wheel Size: 26/27.5"
    •Weight: 2152g (Standard) 2172g (Extended)
    •Offset: 51mm
    •Ride Height: 511-561mm (Standard) 531-571mm (Extended)
    •Travel: 100-150mm internally adjustable in 10mm increments (Standard) 100-140mm (Extended)
    •Spring: Dorado Air w/ IVA
    •Compression Damping: MC2
    •Rebound Damping: Half Cartridge Adjustable TPC
    •Adjustments: Air, Air Volume, Rebound, LS and HS compression
    •Steerer: 1.5" Tapered
    •Crown: Forged Aluminum, Deep Bore Hollow
    •Leg Diameter: 34mm
    •Leg Material: 7000 - Series Butted Aluminum
    •Brake Post Mount: 180mm (203mm Max)
    •Axle :15mmx 150mm Hexlock SL
    •Max Tire Size: 26x4" / 27.5x3.8" (Standard)26x5.15" / 27.5x4.5" (Extended)
    •E-Pac: Yes

    Customer Reviews

    Based on 18 reviews
    Holly Guacamole

    Ok, I am impressed. I am no pro but having gone trough decent amount of bikes and ridden different forks and brands I can say with 100% confidence - this is the best fork I've ever owned. There is not that many options for fatbikes, and generally fatties are ok with rigid forks. I couldn't resist the sale and got the LE ( white camo) version as I wanted that colour since it was released. I've reduced my weight by making tubless tires setup, it is still an extra 1.4 kg based on my calculations. But I cannot tell if I feel the weight penalty as rotational weight of the wheel is far more important. What I can feel is the performance of the fork
    - climbs like a goat... it doesn't move, or I do not feel movements when I pedal up
    - plenty of small bump compliance
    - goes easily through travel, but doesn't just blow through it
    - easiest pressure setup on a market ( with negative chamber equalization tech)
    - super easy travel change

    I will do my research on summer forks and might pretty much be client for life since now :D


    Great fork, fast shipping!

    Scott Casella
    Huge Upgrade

    I upgraded from the comp fork to the pro. It is much lighter and offers a smoother ride.


    Customer Service was outstanding.

    Mr. Pros and Cons
    Great Fork, my Phat Squish feels like a Full Squish

    Easy Install
    Adds TONS of Squish
    Looks Boss

    Dials are a little hard to adjust first time out

    This thing makes my Phat Bike feel like a full suspension. I've hit drops, rocks, and roots and it feels great. There are multiple settings to look at and work with so it takes a little bit to dial it in. I also added extra air but that might be because my gauge is off.

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