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

Mastodon Comp - Gen 2


Regular price $649.99 Sale price$324.99 Save $325.00
Shipping calculated at checkout.

  • Low stock - 2 items left
  • 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 (Adjustable down to 80mm) or 120mm (Adjustable up to 140mm) Travel
    •Expert Air Spring
    •Absolute+ Compression Damping
    •TPC Rebound Damping
    •26", 27.5"

    •Wheel Size: 26/27.5" Fat
    •Weight: 2354g (STD) 2374g (EXT)
    •Offset: 51mm
    •Ride Height: 493-551mm (STD) 513-571mm (EXT)
    •Travel: 80-140mm internally adjustable in 10mm increments
    •Spring: Expert Air w/ IVA
    •Compression: Damping VTT
    •Rebound Damping: in-leg adjustable TPC
    •Adjustments: Air, Air Volume, Rebound, 3-position Compression (Open, Trail, Lock)
    •Steerer: 1.5" Tapered
    •Crown: Forged Aluminum, Hollow
    •Leg Diameter: 34mm
    •Leg Material: 6000- Series Straight Wall Aluminum
    •Brake Post Mount: 180mm (203mm Max)
    •Axle: 15mm x 150mm Hexlock SL
    •Max Tire: Size 26x4"/27.5x3.8" (STD) 26x5.15"/27.5x4.5" (EXT)
    •E-pac: Yes

    Customer Reviews

    Based on 9 reviews
    Andre Turrettini
    Surprisingly great fork

    This review is for the base mastodon that comes with 100mm travel.

    I'm actually shocked at how good this fork is. The travel is very plush despite that wide distance between stanchions. It has real damping which none of the base models from any other manufacturer have. Finally, its quite stiff with the 34mm legs. I've tried other peoples bluto and those 3 above sentences to do not apply!

    Certainly its added weight to my fat bike which is already not very light but its also transformed it for riding on dirt for my hands.


    Just what I needed for my snow bike. Smooth travel, easily tunable, and well priced.


    Arrived quickly and Works perfectly!

    Daniel Gibson
    Giant Yukon Upgrade

    I have been wanting one of these forks for a couple years now and I have to say I can't wait for it to snow to try it out. My fat bike is now complete.


    This is easily the best upgrade I’ve installed on my rigid fat bike. The 3-position VTT damper works so well, it’s hard to imagine what you’re missing out on compared to the Mastodon Pro.

    Recently viewed