Manitou Mastodon Pro Fat Bike Fork

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The Manitou Mastodon Pro fat bike suspension fork is a long awaited and worthy competitor to the Bluto. Cold tested (wink wink) and ready to ride, the Mastodon is a great option for people looking to add front suspension to their fat bikes.

Some people claim that fat bike tires run such low pressure that they act like a natural suspension fork, but if you've ever ridden a mountain bike on a trail, you'll know the difference. The Mastodon helps smooth out your ride and really let's you take your fat bike anywhere.

From Manitou

Real-world trail suspension for your fatbike! All-temperature performance soaks up chatter and big hits on freezing cold snow as well as it does on shimmering hot sand, and everywhere in-between.

  • -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
  • -All-temperature performance born of frigid winter ride-testing
  • -34mm trail chassis is stiffer and steers more precisely than any other fatbike suspension fork
  • -E-MTB Certified


Weight: 2210g

Travel: 100mm (adjustable down to 80mm), 120mm (adjustable up to 140mm)

Spring: Dorado Air

Offset: 51mm (standard and extended)

Brake: 180mm post mount

Axle: Hexlock SL 15mm x 150mm

Crown to Axle: 511 (100mm Travel) 531 (120mm Travel) (Standard) 531 (100mm Travel) 551 ( 120mm Travel) (Extended)

Type: Fork

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Nicholas M.
United States

Good Fork - Much better than Bluto

I bought this Mastodon to replace an older Bluto on my fat bike. It's far better. Whereas my Bluto suffered from lots of "stiction" (only briefly made better by a rebuild) the Mastodon is smooth from the start. I've only taken it on a couple singletrack trails so far but the difference is sufficiently dramatic that I highly recommend it.

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