Mastodon Pro
Mastodon Pro
Mastodon Pro
Mastodon Pro
Mastodon Pro
Mastodon Pro

Mastodon Pro


Regular price$949.99

  • Low stock - 8 items left
  • Inventory on the way

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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
    •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 5 reviews
    Better than a Wren

    Had a Wren, and it was a noodle compared to the Mastadon. The Mastadon is stiff as hell and much easier to tune.

    Unknown Person
    Why not

    Don't think just buy! Well worth the money!
    Far exceed the RS Bluto on performance and stiffness.
    I have it on both my fatties and increased travel to 140mm on both. It's turned both of my fatties into year round bikes.
    Both are the EXT Pro models it's the only way to go. Now I see Manitou makes it on 150mm, I'll definitely get or 2 in that travel.

    Mastodon Pro

    Just upgraded my Bluto to this fork, I live in New England and this fork is amazing, currently have only ridden in the snow, but cannot wait for dirt. - I cannot even believe the difference. I put the fork on a Foes Mutz.

    Jonathan O’Connor
    Loving this fork

    I debated whether to switch to a suspension fork on my farley 5. It seemed pricey and I was worried the extra weight might turn into sluggish handling. The Debate is over. This fork completely transformed my fat bike. It’s way more capable and more fun. I ride in rocky New England where there there is typically only deep snow a couple weeks a year. The bike still climbs great no problem with seated pedaling and not too much Bob standing. In virtually all trail situations the Mastodon makes this bike so much better. I’ll be riding my Farley year round now. Very quick turnaround and good communication from Hayes. Absolutely recommended this fork. It will slacken a rigid bike so consider lowering the stem upon installation.

    Brett Metzger
    What is Better than *Awesome*? a Manitou MastodonProEXT!!!

    My Trek Farley EX8 was *Awesome* for 2+ years with the stock Bluto...
    but when it came time to 'rebuild' the fork, *Replacement* with a Manitou MastodonProEXT made more sense (because a DoradoDC BigFatFuss is still not available)...

    So what is Better than *Awesome*...?!?

    [ByTheWay, you would do yourself and your prospective customers a service by mentioning the MastodonProEXT *also Fits 29erPlus (3.0" Wide 622x77mm) Tires* along with 584x123mm (aeka 27.5x4.8") and the ErroneouslyKnownAs 26x5.15" (or ~559x135mm, which are 22.0"BSD & ~32"OD, nothing is 26" in diameter except roughly where some lettering or sidewall scuffing might be)...]

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