Surly Karate Monkey Bike - 27.5" Steel Fool's Gold X-Large

$1,849.00
$1,849.00
$1,849.00

Questions about sizing, geometry, or custom builds? Give us a call (831) 215-1784

SKU: BK1005

Expected Ship Date: Wed Sep 23
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Description
Surly Karate Monkey Bike - 27.5" Steel Fools Gold X-Large. 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 headtubeThe tubeset uses the same trumpet tubes found on Instigator 2.0 frameAdjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142 148 12mm thru as well as 135mm w/ 10/12 washerInternal dropper seatpost routing with 30.9mm seat tube IDClearance for 29 x 2.55 or 27.5 x 3 tires
  • TECH SPECS
Brake Type Disc
Color Fools Gold
Defined Color Gold
Fork Material Steel
Fork Type Rigid
Frame Material Steel
Frame Type Rigid
Front Axle 15mm Thru x 110mm
Mfg Size X-Large
Rear Axle 12mm Thru x 145mm
TT (Effective) 660
Wheel Size 27.5+
Platform Karate Monkey

Build Kit

Specifications subject to change without notice.

Frameset

Frame Surly Karate Monkey - 4130 Chromoly, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, ED coated
Color Fool's Gold
Fork Surly Karate Monkey - 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated

Components

Headset Cane Creek 15
Seatpost Clamp Surly Stainless, 33.1mm
Seatpost Promax, 30.9mm
Stem Promax, 31.8mm
Grips/Bar Tape Velo Lock-On
Saddle WTB Volt 142
Handlebar Salsa Rustler

Drivetrain & Brakes

Rear Derailleur Shimano Deore RD-M6100, 12-speed
Cassette SunRace CSMZ800, 11-51t, 12spd
Chain KMC X12 NP/BK
Crankset Shimano Deore FC-MT510-1, 30t
Shifter Shimano Deore SL-M6100
Brake Levers Tektro HD-M275
Brake Calipers Tektro HD-M275
Bottom Bracket Shimano
Rotors Tektro 180/160, 6-Bolt

Wheels & Tires

Front Tire Surly Dirt Wizard 27.5 x 3.0", 60 tpi, Tubeless Ready
Rear Tire Surly Dirt Wizard 27.5 x 3.0", 60 tpi, Tubeless Ready
Front Hub Novatec 15x110mm, 32h
Rear Hub Novatec 12x148mm, 32h
Rim WTB ST i40 TCS 27.5"


Product Images Disclaimer
Product images are for reference only and may not reflect the exact specifications, color, or components of the item offered for sale. Please refer to the product description and specifications for the most accurate details. If you have questions before purchasing, contact us, and we’ll be happy to confirm.

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Who We Are

Born from a lifelong passion for all things bikes, AMG Cyclery is a small, family-run bike shop and community hub in Seaside, California. Founded by Alex and Alisa Gonzales, we believe cycling is for everyone — whether you’re chasing personal bests, heading out for a Sunday cruise, or just discovering two wheels for the first time. We build bikes that fit your style, service them with precision, and welcome every rider who walks through our doors. With a focus on community, craftsmanship, and riding culture, our shop has even been featured on The Radavist — a reflection of the unique bikes and vibrant energy you’ll find here.

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