Manitou designed the Mastodon from the ground up to be a fat bike suspension fork that works when most people ride their fat bikes, in the cold. The Mastodon Fat Bike Suspension Fork will work in temps as low as 0 degrees without a slow down in performance which is 30plus degrees colder that some of the other fat bike suspension forks on the market can do.
Manitou builds the Mastodon Suspension Fork in 2 sizes to provide a more dialed fit for today's fat bikes. The Standard Mastodon Suspension Fork is capable of running 26x4.0" or 27.5x3.8" tires. If you need or want to run larger tires, an extended version of the Mastodon will clear 26x5.15" or 27.5x4.5" tires, more than just about any other fork on the market. If you are unsure of which version will fit your tires, a tire clearance chart is available here.
Stiffness can become an issue with fat bike suspension forks, so to stiffen things up the Mastodon is designed to be a trail fork using a larger 34mm chassis. Mastodon Pro forks have the ultra-reliable Dorado air spring from their freeride and DH forks along with 7050 alloy legs and MC2 compression dampening.
Manitou ships the Mastodon in two travel versions 100mm and 120mm. The 100mm Mastodon can be converted to 80mm of travel if you need less travel. The 120mm Mastodon can be converted to 140mm should you need slightly more travel. Instructions on how to change the travel can be found here.
Cold weather rated fat bike suspension fork
Standard version with clearance for 26x4.0" tires
Ultra stiff 34mm chassis
Includes HexLock SL 15x150mm thru-axle
Axle to Crown
Front Axle Type
15mm Thru Axle
Front Hub Spacing
26" Fat Bike, 27.5" Fat Bike
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asked by: Big-Dog How do I extend the travel to 140mm the link in the description does not work. Do I need to purchase a kit and do you sell the kit? I am gunning the original rock shock bluto on my bucksaw will my original rim and hub fit this fork? Will this fork fit my bucksaw?
anwered by: canteau The Manitou Service guide/travel adjust guide for the Mastodon can be found here: