{"product_id":"new-surly-karate-monkey-fools-gold-mountain-bike","title":"NEW Surly Karate Monkey Steel Rigid Mountain Bike - Fool's Gold - 210000037683","description":"\u003ch2\u003eNEW Surly Karate Monkey Steel Rigid Mountain Bike - Fool's Gold - 210000037683\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003eFeatures                    \u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube\u003c\/li\u003e\n\u003cli\u003eThe tubeset uses the same trumpet tubes found on Instigator 2.0 frame\u003c\/li\u003e\n\u003cli\u003eAdjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru, as well as 135mm w\/ 10\/12 washer\u003c\/li\u003e\n\u003cli\u003eInternal dropper seatpost routing with 30.9mm seat tube ID\u003c\/li\u003e\n\u003cli\u003eClearance for 29 x 2.55 or 27.5 x 3 tires\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eFrame: 100% Surly Chromoly Steel, Custom double-butted, externally flared tubing, Horizontal slotted with derailleur hanger, Surly “Gnot Boost” 142 or 148mm hub spacing compatibility\u003c\/li\u003e\n\u003cli\u003eFork: 100% Surly Chromoly Steel, 483mm axle-to-crown x 47mm offset, 110mm hub spacing, Tapered and butted straight blade, 4130 Chromoly, 51mm I.S. disc mount\u003c\/li\u003e\n\u003cli\u003eCrankset: Shimano Deore FC-MT510-1, 30t\u003c\/li\u003e\n\u003cli\u003eBottom Bracket: Shimano (included with crankset)\u003c\/li\u003e\n\u003cli\u003eFront Derailleur: N\/A\u003c\/li\u003e\n\u003cli\u003eRear Derailleur: Shimano Deore RD-M6100, 12-speed\u003c\/li\u003e\n\u003cli\u003eCassette \/ Cog: SunRace CSMZ800, 11-51t, 12-Speed\u003c\/li\u003e\n\u003cli\u003eChain: KMC X12 NP\/BK\u003c\/li\u003e\n\u003cli\u003eGrips \/ Bar Tape: Velo lock-on\u003c\/li\u003e\n\u003cli\u003eHandlebar: Salsa Rustler without logo\u003c\/li\u003e\n\u003cli\u003eStem: ProMax, 31.8\u003c\/li\u003e\n\u003cli\u003eHeadset: Cane Creek 15\u003c\/li\u003e\n\u003cli\u003eRear Shifter: Shimano Deore SL-M6100\u003c\/li\u003e\n\u003cli\u003eBrake \u0026amp; Rotors: Tektro HD-M275, 180mm front \u0026amp; 160mm rear\u003c\/li\u003e\n\u003cli\u003eSaddle: WTB Volt 142\u003c\/li\u003e\n\u003cli\u003eSeatclamp: Surly stainless, 33.1mm\u003c\/li\u003e\n\u003cli\u003eSeatpost: ProMax, 30.9\u003c\/li\u003e\n\u003cli\u003eFront Hub: 110mm, Novatec, 32h, Thru-Axle\u003c\/li\u003e\n\u003cli\u003eRear Hub: 148mm, Novatec, 32h, Thru-Axle\u003c\/li\u003e\n\u003cli\u003eRims: WTB i40 TCS\u003c\/li\u003e\n\u003cli\u003eTires: Surly Dirt Wizard 29 x 3”, 60 tpi, Tubeless Ready\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA proven all-purpose steel hardtail platform\u003c\/strong\u003e, the Surly Karate Monkey Rigid MTB is built for riders who want maximum versatility across trail, gravel, and bikepacking use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable 4130 Chromoly steel frame and rigid fork\u003c\/strong\u003e deliver long-lasting strength, a smooth ride feel, and low-maintenance reliability for everyday and adventure riding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e29” wheel compatibility with wide tire clearance\u003c\/strong\u003e provides excellent rollover capability, traction, and stability on rough singletrack and mixed terrain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid MTB design for simplicity and control\u003c\/strong\u003e, favoring durability, efficiency, and rider feel over suspension complexity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHighly modular geometry\u003c\/strong\u003e, allowing riders to adapt components for trail riding, commuting, or long-distance off-road touring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBikepacking-ready mounting points\u003c\/strong\u003e support racks, cages, and cargo setups for extended backcountry expeditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFool’s Gold finish\u003c\/strong\u003e delivers a distinctive, retro-inspired aesthetic that highlights the bike’s utilitarian steel character.\u003c\/li\u003e\n\u003cli\u003eFrequently chosen by riders who want a \u003cstrong\u003e“one bike does it all” steel platform that can handle commuting, trail riding, and adventure touring equally well\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIdeal for cyclists seeking a \u003cstrong\u003esimple, tough, and endlessly adaptable rigid mountain bike that rewards skill and creativity across varied terrain\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: What is the Surly Karate Monkey designed for?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: The Surly Karate Monkey is a highly versatile hardtail\/rigid MTB built for trail riding, bikepacking, commuting, and mixed-terrain adventure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: What makes it different from other mountain bikes?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: It supports both 27.5\" and 29\" wheel setups, giving riders flexibility to tune handling for agility or speed and stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: What frame material is used?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: It is made from Surly 4130 Chromoly steel, known for durability, comfort, and long-term off-road reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: What terrain is it best for?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: It performs well on singletrack, gravel, forest roads, and rough utility routes where strength and control matter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: Is it good for bikepacking?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: Yes. It includes multiple mounting points for racks, bottles, and cargo systems, making it ideal for loaded adventure riding.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: Why choose the Surly Karate Monkey?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: Riders choose it for its adaptable wheel compatibility, simple rigid setup (lower maintenance), and rugged steel construction for all-purpose riding.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eClean frame, fork, and drivetrain after trail, mud, or wet rides to prevent corrosion and drivetrain wear.\u003c\/li\u003e\n\u003cli\u003eInspect chromoly steel frame regularly for paint chips, rust spots, dents, or stress marks; touch up exposed steel promptly.\u003c\/li\u003e\n\u003cli\u003eApply internal frame rust inhibitor annually, especially in wet, snowy, or coastal riding conditions.\u003c\/li\u003e\n\u003cli\u003eGrease all threaded interfaces (bottom bracket, headset, thru-axles, bottle\/rack mounts) to prevent seizing.\u003c\/li\u003e\n\u003cli\u003eCheck rigid fork, dropouts, and disc brake mounts frequently for tightness and alignment after rough trail use.\u003c\/li\u003e\n\u003cli\u003eMaintain drivetrain (chain, cassette, chainrings) with regular cleaning and lubrication, especially after muddy rides.\u003c\/li\u003e\n\u003cli\u003eKeep tire clearance clear of packed mud or debris, especially with wider 27.5\/29 tire setups.\u003c\/li\u003e\n\u003cli\u003eInspect wheels, hubs, and bearings regularly due to trail impacts and rigid-frame vibration transfer.\u003c\/li\u003e\n\u003cli\u003eAvoid pressure washing to protect bearings, seals, and frame joints from water intrusion.\u003c\/li\u003e\n\u003cli\u003eStore indoors in a dry place to preserve steel durability and finish longevity.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Surly","offers":[{"title":"X-Small","offer_id":45745270849727,"sku":"210000037683","price":1849.0,"currency_code":"USD","in_stock":true},{"title":"Small","offer_id":45745270882495,"sku":"210000037687","price":1849.0,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":45745270915263,"sku":"210000037688","price":1849.0,"currency_code":"USD","in_stock":true},{"title":"Large","offer_id":45745270948031,"sku":"210000037689","price":1849.0,"currency_code":"USD","in_stock":true},{"title":"X-Large","offer_id":45745270980799,"sku":"210000037690","price":1849.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/6f0f935af25bab2e7a03111088911fda_768087fa-aa46-4e05-9be3-8447558d3313.jpg?v=1781761943","url":"https:\/\/backyardprovider.com\/products\/new-surly-karate-monkey-fools-gold-mountain-bike","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}