{"product_id":"surly-karate-monkey-mountain-frame-fm0317","title":"Surly Karate Monkey Frameset 27.5\"+ Steel, Hi-Viz Black, Trail-Ready Geometry, Custom Trumpet Tubes, Gnot-Boost Dropouts, Internal Dropper Routing","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eDiscover the Surly Karate Monkey Frameset - a versatile, high-performance steel mountain bike frame engineered for trail enthusiasts and adventure seekers alike. Crafted from premium Surly Chromoly steel, this 27.5\" (650b) frameset offers remarkable strength, durability, and a smooth ride, making it the perfect foundation for your custom trail or all-mountain build.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Construction\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eMade entirely from 100% Surly Chromoly steel, the Karate Monkey frameset features a double-butted main triangle and a robust 44mm headtube for enhanced stability. The use of specialized trumpet tubes, similar to those on the renowned Instigator 2.0, ensures optimized strength-to-weight ratio and superior fatigue resistance for rigorous trail riding and daily commuting.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eDesigned with progressive trail geometry and accommodating tire clearance up to 29 x 2.55\" or 27.5 x 3\", this frameset delivers exceptional versatility across diverse terrains. The adjustable Gnot-Boost rear dropout system offers 145mm spacing, compatible with 142, 148 (boost), and 135mm w\/ washer rear axles, providing precise wheel compatibility for different gearing and drivetrain setups. Internal routing for 30.9mm dropper seatposts allows for swift, on-the-fly saddle height adjustments, perfect for technical descents or climbing.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eComponents \u0026amp; Technology\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eThis Rigid steel frameset features disc brake compatibility, ensuring consistent stopping power in all weather conditions. The 15mm thru-axle front and 12mm thru-axle rear provide maximum stiffness and security for aggressive trail riding. The spacious frame design offers ample clearance for wide tires, making it ideal for exploring mountain trails, gravel roads, or urban environments with rugged off-road capabilities.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eStyle \u0026amp; Use Case\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eStyled in a high-visibility black finish, the Surly Karate Monkey Frameset combines rugged durability with a sleek, modern look. Its versatile design makes it perfect for riders looking to build a personalized, steel hardcore mountain bike, full-suspension project, or versatile gravel adventure rig. Whether tackling rugged mountain trails, commuting through city streets, or embarking on multi-day bike packing journeys, this frameset is engineered to perform.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eInnovative \u0026amp; Differentiating Features\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- Custom trumpet tubeset for durability and strength\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- Gnot-Boost adjustable rear dropout for versatile wheel compatibility\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Internal dropper seatpost routing for streamlined cockpit\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Wide tire clearance for 27.5+ and 29-inch wheels\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Compatibility with multiple drivetrain standards for customization\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003eUpgrade your mountain biking experience with the Surly Karate Monkey Frameset - built for trail performance, durability, and custom versatility. Whether you're a seasoned rider or a trail explorer, this steel frameset will meet your demands for a reliable, stylish, and innovative ride.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eSteel Frame and Fork Engineering - Crafted from 100% Surly Chromoly steel for durability, versatility, and smooth ride quality, featuring a double-butted construction and a 44mm headtube for enhanced strength and stiffness on challenging trails. \u003c\/li\u003e\n\u003cli\u003eProgressive Trail Geometry \u0026amp; Compatibility - Updated geometry designed for aggressive trail riding, with clearance for 29 x 2.55 or 27.5 x 3 tires, providing excellent traction and stability across diverse terrains. \u003c\/li\u003e\n\u003cli\u003eGnot-Boost Rear Dropout System - Innovative adjustable rear dropouts with 145mm Gnot-Boost spacing, compatible with 142, 148 12mm thru-axles, and 135mm with washers, offering versatility in wheel choices and drivetrain configurations. \u003c\/li\u003e\n\u003cli\u003eInternal Routing \u0026amp; Modern Features - Internal dropper seatpost routing for seamless suspension adjustments, accommodating 30.9mm seat tubes, and capable of handling multiple wheel sizes including 27.5+ and 29-inch, making it ideal for trail, all-mountain, and fat tire riding styles. \u003c\/li\u003e\n\u003cli\u003eStylish Hi-Viz Black Finish \u0026amp; Customization Options - Eye-catching Hi-Viz Black color with multiple drivetrain and wheel size options, allowing riders to personalize their bike setup and stand out while exploring mountain and off-road trails.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Surly","offers":[{"title":"Default Title","offer_id":42205973184579,"sku":"FM0317","price":999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/FM3792.jpg?v=1779334373","url":"https:\/\/365cycles.com\/products\/surly-karate-monkey-mountain-frame-fm0317","provider":"365 Cycles","version":"1.0","type":"link"}