Mongoose Juneau Fat Tire Mountain Bike – 26" x 4" Tires, 16-Speed, Aluminum Frame – Blue

$325.00 $599.99 $274.99 Off

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Quantity
  • 3 Low stock

Brand New • Sealed in Original Manufacturer Packaging 

  • All-terrain fat bike: 26" wheels with massive 26 x 4.0" tires for sand, snow, gravel, and rugged trails.
  • Lightweight aluminum frame: Hydroformed mountain-style frame for a strong, responsive, and agile ride.
  • 16-speed Shimano drivetrain: Trigger shifters deliver fast, accurate gear changes on climbs and descents.
  • Front & rear disc brakes: Reliable mechanical discs for crisp stopping power and precise speed control in all conditions.
  • Drilled alloy rims: 3" wide rims reduce weight while maintaining stability and durability.
  • Ideal rider height: Sized for most adult riders approximately 5'4" – 6'2" tall.
  • Ready for adventure: Perfect for trail riding, dirt, gravel roads, sand, and winter riding.

Product Description

Get the ultimate all-season riding experience with the Mongoose Juneau fat tire mountain bike. Built around a lightweight yet tough aluminum mountain-style frame with hydroformed tubing, the Juneau delivers a durable, responsive ride that feels confident on everything from rugged trails and gravel roads to sand and snow.

A 16-speed Shimano drivetrain with trigger shifters gives you smooth, precise gear changes so you can climb hills easily and maintain control on descents. Front and rear mechanical disc brakes provide reliable stopping power in wet, muddy, or dry conditions, helping you stay in control no matter where your ride takes you.

The real stars of the Juneau are the 26 x 4.0 inch all-terrain tires mounted on 3" wide drilled alloy rims. These extra-wide tires deliver massive traction and stability, keeping you rolling confidently across dirt, loose gravel, sand, or packed snow. If you’ve got fat tire fever, the Mongoose Juneau is ready to cure it with big fun and big capability.

Key Features

  • Designed for all-terrain, all-season riding – sand, snow, trails, gravel, and more.
  • Hydroformed aluminum frame offers strength, reduced weight, and a responsive ride feel.
  • 16-speed trigger shifters with 2x8 drivetrain for quick, accurate gear selection.
  • Mechanical disc brakes front and rear for dependable stopping power in all weather.
  • 26" x 4.0" knobby fat tires on 3" wide drilled alloy rims for extra grip and stability.
  • Ideal for riders approximately 5'4" to 6'2" (size and fit may vary by rider).
  • Great for trail riders, commuters in rough conditions, and anyone who wants a fun, confidence-inspiring fat bike.

Technical Specifications

Brand Mongoose
Model Juneau Fat Tire Mountain Bike
Frame Material Tectonic T1 6061 aluminum, 26" fat bike geometry, 9 mm x 190 mm QR axle, replaceable hanger, 1-1/8" headtube
Fork Aluminum rigid fork, 26" aluminum steerer, 9 mm x 135 mm QR axle
Drivetrain 16-speed (2 x 8) Shimano drivetrain with trigger shifters
Shifters Shimano SL-M315, 2 x 8
Front Derailleur MicroSHIFT FD-M462D, 34.9 mm clamp
Rear Derailleur Shimano RD-TX800
Crankset Prowheel TM-CY10, 36/22T
Chain KMC Z8.1
Bottom Bracket Square taper, 120 mm
Rims Xposure aluminum, 95 mm ID, 36H drilled alloy rims
Front Hub Aluminum ball bearing, 9 mm x 135 mm, 36H, 6-bolt
Rear Hub Aluminum ball bearing, 10 mm x 190 mm QR, 36H, 6-bolt
Spokes 14G steel, black
Tires Xposure 26" x 4.0" wire bead fat all-terrain tires
Brakes Mechanical disc brakes, aluminum calipers, 180 mm front rotor, 160 mm rear rotor
Handlebar Xposure aluminum, 700 mm width, 25 mm rise, 31.8 mm clamp
Stem Aluminum threadless, 90 mm, 7° rise, 31.8 mm clamp
Headset Threadless ZS44 retainer bearing
Seat Post Aluminum, 300 mm, 31.6 mm
Saddle Steel railed
Pedals Nylon
Grips Xposure Kraton
Color Blue
Bike Type Fat Tire / Mountain Bike

Condition & Assembly

Condition: Brand new, never ridden, and sealed in the original manufacturer packaging.

Super easy assembly in minutes – 85% assembled right out of the box.