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SURLY BIKES MOUNTAIN / FAT BIKES

*This is only a catalog not an e-commerce store. This does not reflect on our current in store inventory. We apologize for any inconveniences.

Surly Krampus Front Suspension Bike - 29", Steel, Shimamo

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Mountain Bike

The bike that started it all — the plus-size movement that is. The Krampus Front Sus takes it a step further with the addition of front suspension and a dropper post, providing more traction, more control, more fun. And as you'd expect, the frame features Surly’s Gnot-Boost rear hub spacing of 145mm; compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle and 135mm quick-release hubs. Rolling on 29” x 2.6” tires, this bike can get you over just about anything you point it at.

  • 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube

  • RockShox 35 Gold RL A2, 120mm travel

  • The tubeset uses Surly custom trumpet tubes for greater stiffness and durability

  • Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru-axle, as well as 135mm with 10/12 washer

  • Internal dropper seatpost routing

  • E.D. coated for an added layer of internal frame protection

  • Clearance for 29 x 3" tires

  • Available sizes:  small, medium, large, x-large

Surly Krampus Bike - 29", Steel, First Loser, Small, Shimano

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Mountain Bike

The bike that started it all — the plus-size movement that is. The Krampus features Surly’s Gnot-Boost rear hub spacing of 145mm; compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle and 135mm quick-release hubs. Rolling on 29 x 3” tires, this bike can get you over just about anything you point it at.

  • 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube

  • The tubeset uses Surly custom trumpet tubes for greater stiffness and durability

  • Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru-axle, as well as 135mm with 10/12 washer

  • Internal dropper seatpost routing

  • E.D. coated for an added layer of internal frame protection

  • Clearance for 29 x 3" tires

  • Available sizes:  small, medium, large, x-large

Surly Krampus Bike - 29", Steel, Sram

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Mountain Bike

The bike that started it all — the plus-size movement that is. The Krampus features Surly’s Gnot-Boost rear hub spacing of 145mm; compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle and 135mm quick-release hubs. Rolling on 29” x 3” tires, this bike can roll over just about anything you can point it at.

  • 100% Surly 4130 Chromoly steel frame and fork; double-butted main triangle and 44mm headtube

  • The tubeset uses Surly custom trumpet tubes for greater stiffness and durability

  • Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru-axle, as well as 135mm with 10/12 washer

  • Internal dropper seatpost routing

  • ED coated for an added layer of internal frame protection

  • Clearance for 29 x 3" tires

  • Available sizes:  small, medium, large, x-large

Surly Karate Monkey Front Suspension Bike - 27.5", Steel, Shimano

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Mountain Bike

The Karate Monkey Front Suspension bike features a Rock Shox 35 Gold RL A2 suspension fork with 140mm travel, and it’s paired with a dropper post out the box. Progressive trail geometry and Surly’s Gnot-Boost rear dropout system deliver a versatile bike with the ability to swap hubs and wheel sizes. If you want to round-house kick some trail right in the face, the Karate Monkey is your sled.

  • 100% Surly Chromoly steel frame, double-butted main triangle and 44mm headtube

  • The tubeset uses Surly custom trumpet tubes for greater stiffness and durability

  • Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142 and 148 x 12mm thru, as well as 135mm w/ 10/12 washer

  • Rock Shox 35 Gold RL A2 suspension fork with 140mm travel

  • TranzX SP15 dropper post with stealth routing; 100mm travel on XS/SM 120mm travel on MD/LG/XL

  • Clearance for 27.5 x 3 or 29 x 2.55" tires

  • Available sizes:  small, medium, large, x-large

Surly Karate Monkey Bike - 27.5", Steel, Shimano

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Mountain Bike

The Karate Monkey features updated, progressive trail geometry, our custom trumpet tubeset and Surly’s Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations.

  • 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube

  • The tubeset uses the same trumpet tubes found on Instigator 2.0 frame

  • Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru, as well as 135mm w/ 10/12 washer

  • Internal dropper seatpost routing with 30.9mm seat tube ID

  • Clearance for 29 x 2.55 or 27.5 x 3 tires

  • Available sizes:  small, medium, large, x-large

Surly Karate Monkey Bike - 27.5", Steel, Sram

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Mountain Bike

The Karate Monkey features updated, progressive trail geometry, a new tubeset and Surly’s Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations.

  • 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube

  • Tubeset uses the same trumpet tubes found on Instigator 2.0 frame

  • Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru, as well as 135mm w/ 10/12 washer

  • Internal dropper seatpost routing with 30.9mm seat tube ID

  • Clearance for 29 x 2.55 or 27.5 x 3 tires

  • Available sizes:  small, medium, large, x-large

Surly Instigator Bike - 26", Steel, Shimano

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Mountain Bike

Instigator 2.0 is what Surly calls 26+. The toptube is long and the wheelbase relatively short, with a nice front/rear balance. This thing is made from the ground up to swoop, rail, hammer, drift, carve and fly. It goes downhill like nobody's business and climbs well too.

  • Shimano SLX brakes, levers, shifters and rear derailleurs

  • 100% Surly 4130 chromoly steel. Main triangle double-butted. TIG-welded

  • MRP 1x chain guide

  • Frame is ED Coated for increased life expectancy

  • Surly complete bikes equipped with the Modular Dropout System will include only the appropriate chip for derailleur spec. Other chips are available aftermarket

  • Surly Modular Dropout System gives you the option of 142 x 12 thru axle (Shimano Direct Mount derailleur hanger [axle included]), 10mm QR geared, or singlespeed (complete bikes ship with only 142 x 12mm thru axle chip)

  • Available sizes:  small, medium, large, x-large

Surly Wednesday Fat Bike - 26"X 4.6", Steel, Sram

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Fat Bike

The Wednesday is Surly's all-terrain fat bike. The frame features trail-ready geometry, 4.6" of tire clearance, provides lots of cargo carrying capabilities and is paired with a 100mm suspension corrected fork.

  • 100% Surly 4130 CroMoly steel with 44mm headtube and internal dropper post cable routing

  • Frame is ED Coated for increased life expectancy

  • 1-1/8" straight steerer fork, 4130 CroMoly

  • 100mm Threaded BB shell

  • Universal cast dropouts accommodate thru-axle or quick-release standards

  • Available sizes:  small, medium, large, x-large

Surly Ice Cream Truck Fat Bike - 26"X 4.8", Steel, Shimano

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Fat Bike

Ice Cream Truck solves the problem of having to choose between a fat bike and a trail bike. It boasts a symmetric 190mm-spaced Chromoly frame, suspension-corrected 150mm-spaced fork, and sporty trail-oriented geometry. Supported by massive 4.8"" tires, it’s ready to deftly tackle nearly any terrain.

  • 100% Surly Chromoly steel with 44mm headtube and internal dropper post cable routing

  • Frame is E.D. Coated for increased life expectancy

  • 1-1/8" straight steerer fork, Chromoly steel

  • 100mm threaded bottom bracket shell

  • Front and rear thru-axles, non-off-set

  • Universal cast dropouts accommodate thru-axle or quick-release standards

  • Available sizes:  small, medium, large, x-large

"Every bike needs a little tlc!"