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CB4 Sportsman's Fatbike

  • Model: CB4
  • Shipping Weight: 65lbs
  • Manufactured by: Cogburn


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Cogburn CB4 Fat Bike

The Cogburn CB4 Fat Bike is more than any ordinary Mountain Bike. It is a human powered all-terrain bike made for outdoorsman to easily access hard to reach trails, swamps and fishing holes without using noisy ATVs, 4x4s and Side by Sides. The hardtail frame is made from durable A6N-6000 Aluminum tubing with a matching rigid fork for extra durability. The frame itself is ergonomically designed to be clear of hunting boots and rubbing heels.  The bike is matched with Surly 82mm Wide Fat Rims, Surly Nate Tires, Avid BB7 Disc Brakes, SRAM X5 GXP100 Crankset and Shimano Deore Derailleur and cassette package. This bike is designed to get you through any rough terrain without getting flats or being stopped by roots and rocks.

Frame: Cogburn CB4 A6N-6000 Heavy Duty Aluminum Tubeset
Fork: Cogburn Rigid A6N-6000 Aluminum Fork
Headset: Internal 1-1/8" Semi-Sealed
Stem: Kalloy +7 Deg. x 90mm Alloy
Bars: Alloy 750mm Width x 20mm Rise with 11 Degree Backsweep
Grips: Knurled Krayton Rubber
Brakeset: Avid BB7 cable actuated disc brakes, 160mm stainless rotors, Avid           FR5 levers
Seat: Velo, Foam padded with vinyl cover, Black
Seatpost: Kalloy, 31.6 diameter, 400mm length, Bead-blasted finish, Black
Seatclamp: Kalloy, 34.9mm I.D., Bead-blasted finish
Pedals: Wellgo platform type, Black
Crankset: SRAM X5 GXP100, 175mm crank with sealed bearings, 22/36t gearing
Front Derailleur: Shimano Deore 2 x 10 Speed
Rear Derailleur: Shimano Deore Shadow Plus 10 Speed
Front and Rear Shifters: Shimano Deore 2 x 10 Speed
Chain: KMC 10-speed
Derailleur Cable and Housing: Jagwire stainless shift cables and full length housing
Wheels: Formula sealed-bearing hubs front and rear, Surly 82mm-wide Rolling Darryl rims, DT Swiss stainless steel spokes, Built and finished by hand in the USA
Tires: Surly Nate 26x3.8” tires, Surly Light Fat inner tubes
Cassette: Shimano Deore – 10-speed, 11/36t gearing

Available in Small (16" Seattube, 23.2" Top Tube) or Large (19" Seattube, 24.4" Toptube)

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This product was added to our catalog or last edited on Tuesday 27 June, 2017. If this item was added years ago, please email or call to verify stock. is focused on BMX and BMX type riding. Shop for Mountain Bikes,
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