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Mountain Frames

Surly Big Fat Dummy Frameset
$1,649.00 - $1,650.00
The Big Fat Dummy is a long tail cargo bike that took a few too many doses of growth hormones. At first glance, you might say that Surly just put bigger tires on a Big Dummy. But if you said that, you'd actually be very wrong so just… don't. Think of Big Fat Dummy as more of a second or third cousin to Big Dummy rather than a brother. They share some of the same DNA and look sort of similar, but they're two very different bikes and really only interact when they both reach for the potato salad spoon at that family reunion that no one really wants to be at anyway. Now that that's out of the way, let's get down to the nitty gritty of what makes this hulking beast of a bike tick. Surly's goal with designing a cargo bike around fat tires was to create the most stable, stiff, and traction-laden ride possible while hauling a ton of stuff. Big Fat Dummy has a longer toptube and slacker headtube than its more svelt cousin giving it a nice, predictable, and stable ride. They also used thinner, lighter tubing to construct its cargo area so while it's an overall burlier bike, there's not much difference in weight. Big Fat Dummy accepts either 10mm or 12mm axles in the rear with a spacing of 190/197mm. That big ‘ol spacing equates to one thing: tire clearance for days. Big Fat Dummy maxes out at a massive 26 x 5.25" tire.* While that large of a tire provides the most traction and stability a bike can possibly offer, it's also a lot of rubber to push and might not be for everybody. Luckily, Big Fat Dummy is also a blast to ride with 3" tires too. It uses the same 100mm suspension-corrected fork as the Wednesday, meaning if you want to add a little squishy-squishy to your ride, you can throw a Bluto on and let ‘er rip. If you intend to carry a passenger on your Big Fat Dummy, Surly requires use of their Dummy Rail Collars. These provide a secondary retention system for the rack, as well as stiffen the rack system. In addition, a stoker handlebar set up, found on tandem bicycles, is recommended as well. Make sure to check with seat post manufacturer for stoker handlebar compatibility. All Big Fat Dummy framesets and bikes ship with a Dummy deck, rails, bags, and the aforementioned Dummy Rail Collars so you can immediately start hauling cargo — human or otherwise. Big Fat Dummy is ready and willing to carry all sorts of crap — literally. It's already in use on an organic farm in Ecuador so it's likely that it's hauled some form of manure by now. *Using a 26 x 5.25" tire will cause some drivetrain limitations. For all the nuts and bolts of compatibility read Surly's blog on the subject.
Surly ECR 27.5+ Frameset
$750.00
The ECR is Surly's answer to those times when you just need to escape to the woods for a while to get away from the humdrum of life. Those familiar with this steel mule know it’s designed around plus tires, previously of the 29” variety. A fully loaded 29+ bike is an excellent way to explore and get away for a while… if you’re of a certain stature that is. For smaller riders, it poses several challenges though. And no one wants new problems when they’re in the woods trying to escape old ones. To solve this, Surly redesigned the smaller sizes of the ECR to work with 27.5+ while the larger sizes are still equipped with 29+. All you medium specimens out there get your pick of the litter as they're offering that size in both options. Other updates to the ECR include and are limited to: Gnot-Boost rear spacing and a killer new beige paint job. It retains the abundant accessory mounts that we all know and love like Surly Trip Guide for brakes and derailleurs, fender, rack, and Bill/Ted eyelets, and a Rohloff torque arm slot. The 27.5+ sizes also feature two sets of Three-Pack bosses. You’ve got lots of options to bring all your “necessities” with you and still have room for excess baggage if you’ve got it.
Surly Karate Monkey Frameset
$749.00
Karate Monkey is a highly-versatile trail bike that plays the part of 29er and 27.5+ equally well. Multipurpose Hardtail Mountain Bike Karate Monkey delivers a resilient, lively ride on all sorts of gnarly terrain. Its frame is a highly-versatile canvas for whatever dirty masterpiece your brain cooks up. According to our computing machine (Thor) it can be set up in approximately 487 different configurations. Originally designed as a 29er (and the frame that helped spark the 29" wheel movement), the latest Karate Monkey is designed to perform just as admirably as a 27.5+ rig as well. This allows you to pick your poison — provided your poison is having a really great time while permanently donning a maniacal grin, of course. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension-corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Clearance for 29 x 2.5 or 27.5 x 3 tires
Surly Karate Monkey Frameset
$749.00
The Karate Monkey frame features updated, progressive trail geometry, a new tubeset, and Surly’s Gnot-Boost rear dropout system to support 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 x 12, 148 x 12mm, and 135mm w/ 10/12 washer - Internal dropper seatpost routing - 30.9mm seat tube ID - Clearance for 29 x 2.55 or 27.5 x 3 tires
Surly Lowside Frameset
$600.00
Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It’s just as happy riding singletrack as it is parked outside your favorite drinking establishment. Lowside is a singlespeed. Singlespeeding has been a part of Surly’s DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off. Some have dubbed the Lowside the ultimate pub cruiser. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though) - Clearance for 26 x 3 or 27.5 x 2.8 tires
Surly Lowside Frameset
$600.00
The Surly Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. It’s the bike you turn to when you’re not entirely sure what the night has in store. It’s the bike to grab when you want to have just as much fun riding to the trail as you do on the trail, itself. Singlespeeding is an integral part of Surly’s DNA, and the Lowside continues the tradition, by taking a simpler approach to trail riding. - 100% Surly 4130 chromoly frame, main triangle is double-butted; 1 1/8" threadless chromoly fork - Singlespeed "specific" (derailleur hanger: yes; Trip Guides: no) - Dropper post routing - Gnot-Boost rear spacing - Front and rear thru-axles - 26 x 3" or 27.5 x 2.8" tire clearance
Surly Lowside Frameset
$599.00
Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. It's your BMX bike all grown up. Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It’s just as happy riding singletrack as it is parked outside your favorite drinking establishment. Lowside is a single speed mountain bike. Singlespeeding has been a part of Surly’s DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off. Some have dubbed the Lowside the ultimate pub cruiser. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Spec'd in alternating years with 26 x 3.0 or 27.5 x 2.8 tires, the Lowside remains capable of running either option
Surly Troll Frameset
$699.00
Off-road touring can be a zesty enterprise, but it’s not without its perils. Bicycles are simple machines that are extremely efficient, but all simple machines carry along with them the chance of breaking down. This efficiency can get you in trouble if your bike decides to break down far away from the comforts of your parent’s basement. If you’re going to ride your bicycles where no one can see, you better take gear that’s up to the task. Troll is up to the task. Surly's Troll was once a simple mountain bike frame with a few extras that made it nice for touring. The Troll has evolved into a frame that has been pushed deeper into the category of off-road touring. Its geometry is no longer suspension corrected, which gives it more room for a larger frame bag. The chainstay yoke has been redesigned to be fully compatible with 26+ tires and comes with the always-comfy Jones Loop bar. The dropouts still allow you to run disc brakes, fenders, a Rohloff hub, and racks simultaneously. It also comes with more braze-ons than you thought possible – there are four triple bottle mounts on the fork alone (don’t get excited, you can only run one Anything Cage per fork leg), as well as two more triple bottle mounts on the down tube. Troll is a bike that has one purpose – and that purpose is to carry you as far away from society as possible.
Surly Troll Frameset
$699.00
Off-road touring can be a zesty enterprise, but it’s not without its perils. Bicycles are simple machines that are extremely efficient, but all simple machines carry along with them the chance of breaking down. This efficiency can get you in trouble if your bike decides to break down far away from the comforts of your parent’s basement. If you’re going to ride your bicycles where no one can see, you better take gear that’s up to the task. Troll is up to the task. Our Troll was once a simple mountain bike frame with a few extras that made it nice for touring. The Troll has evolved into a frame that has been pushed deeper into the category of off-road touring. Its geometry is no longer suspension corrected, which gives it more room for a larger frame bag. We’ve also adorned this frame with our Gnot-Boost spacing, allowing you to use any mountain bike hub whether it be 135mm QR, 12 x 142mm thru-axle, or 12 x 148mm Boost hub. The chainstay yoke has been redesigned to be fully compatible with 26+ tires and the dropouts still allow you to run disc brakes, fenders, a Rohloff hub, and racks simultaneously. It also comes with more braze-ons than you thought possible – there are four triple bottle mounts on the fork alone (don’t get excited, you can only run one Anything Cage per fork leg), as well as two more triple bottle mounts on the down tube. Troll is a bike that has one purpose – and that purpose is to carry you as far away from society as possible. Man has known for eons the call of the indifferent forest. The inexorable march of time, and dumb crap like cell phones, have dulled our senses and made us afraid. Reclaim your animalistic tendencies atop Man’s greatest invention.
Surly Troll Frameset
$699.00
Off-road touring can be a zesty enterprise, but it's not without its perils. Bicycles are simple machines that are extremely efficient, but all simple machines carry along with them the chance of breaking down. This efficiency can get you in trouble if your bike decides to break down far away from the comforts of your parent's basement. If you’re going to ride your bicycles where no one can see, you better take gear that's up to the task. Troll is up to the task. Surly's Troll was once a simple mountain bike frame with a few extras that made it nice for touring. The Troll has evolved into a frame that has been pushed deeper into the category of off-road touring. Its geometry is no longer suspension corrected, which gives it more room for a larger frame bag. Surly also adorned this frame with their Gnot-Boost spacing, allowing you to use any mountain bike hub whether it be 135mm QR, 12 x 142mm thru-axle, or 12 x 148mm Boost hub. The chainstay yoke has been redesigned to be fully compatible with 26+ tires and the complete bike comes with the always-comfy Surly Moloko Bar. The dropouts still allow you to run disc brakes, fenders, a Rohloff hub, and racks simultaneously. It also comes with more braze-ons than you thought possible – there are four triple bottle mounts on the fork alone (don't get excited, you can only run one Anything Cage per fork leg), as well as two more triple bottle mounts on the downtube. Troll is a bike that has one purpose – and that purpose is to carry you as far away from society as possible. Man has known for eons the call of the indifferent forest. The inexorable march of time, and dumb things like cell phones, have dulled our senses and made us afraid. Reclaim your animalistic tendencies atop Man's greatest invention.
Surly Wednesday Frameset
$675.00
Wednesday is a great all-around fat bike that has the soul of a trail bike and mind of a touring bike Wednesday sits in the middle of our Trail category, but don’t let that fool you into thinking that’s its only use. With Wednesday, we borrowed elements from some of our Trail and Touring models to create a versatile fat bike that can truly handle anything you want to attempt. If you do an equal amount of off-road touring as you do hitting trails, Wednesday’s ability to play both parts equally will suit you well. Or, if you’re looking for a fat bike and don’t need the fattest tires on the market, Wednesday’s 26 x 4.6" tire clearance is just the ticket. Any day of the week’s a great day to ride a Wednesday. - Modern mountain standards: stealth dropper post routing, 44mm headtube, suspension correction, front and rear thru-axles - Full suite of useful braze-ons: front and rear racks, multiple sets of three-pack mounts, fenders - Full-forward, short chainstay position: 26 x 3.8 tires on 80mm rims; full-rearward, longer chainstay position: 26 x 4.6 tires on an 80mm rim
Surly Wednesday Frameset
$675.00
The Wednesday is Surly's all-terrain fat bike frame. The frame features trail-ready geometry, 4.6-inches of tire clearance, provides lots of cargo carrying capabilities and is suspension corrected for use with a 100mm suspension fork (sold separately). - 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 bottom bracket shell - Universal cast dropouts accommodate thru-axle or quick-release standards
Norco Aurum A Frame
$1,649.00
Developed in collaboration with Norco Factory Racing, the Aurum’s World-Cup racing heritage will put any gravity junkie or passionate DH racer in the hot seat — at races and with your buddies during a day at the park. The Aurum A1 features Gravity Tune, with rear-center lengths that increase proportionately to the front center length for each frame size, achieving optimal body position and weight distribution for superior handling and control. The 6060-T6 frame includes strategic frame armor and integrated fork bump stops, with fender and shuttle guards for protection from day to day high speed riding and surprise get-offs. Designed around 27.5” wheels for strength and stiffness, the Aurum A1 has 142mm rear axle spacing and an 83mm BB shell for ideal chainline with DH drivetrains, and provides 200mm of supple travel with its Fox Performance Vanilla LSC rear shock. Because so many riders have their own preference for wheels, forks, drivetrain and brakes, we’ve made the frame available on its own to build your ultimate dream park rig!
Norco Aurum A1 Frame
$1,319.00
The Aurum Aluminum offers a DH-proven design in a premium aluminum frame. As the ultimate DH park rig, the Aurum Aluminum will happily churn out park lap after park lap throughout the season. 200mm of front and rear travel deliver excellent suspension performance and will turn the roughest terrains into smooth rides. Originally developed in collaboration with Norco Factory Racing, the bike’s World-Cup racing heritage will also put any passionate downhill racer to the forefront when racing against the clock.
Norco Aurum A7 Framekit
$1,274.00
The Norco Aurum A7 offers a World Cup-proven design in a premium alloy frame. This 650B-wheeled downhill race and park bike combines their most advanced mountain technologies including Gravity Tune, 200mm A.R.T. suspension and an integrated shuttle guard. Latin for gold, the Aurum delivers high-speed control and durability for full days in the park or racing against the clock.
Norco Aurum C7 Framekit
$2,999.00
Poise and grace aren't typically used to describe a blazing DH run, but one ride aboard Norco's Aurum will have you stoked about the refined composure of this speed fiend's character. Precision carbon fiber engineering gives the Aurum's frame loads of stiffness for pinpoint control, while the RockShox Vivid RC2C Coil rear shock returns a supple, planted feel and big-hit capability when you need it most. The Aurum — Latin for “gold” — earned its name by turning the most challenging terrain features into advantages over other riders. Devour steep, gnarly sections with high-speed control and push your limits whether you’re doing park laps or racing against the clock.
Norco Aurum C7.1 Frame
$2,699.00
Poise and grace aren't typically used to describe a blazing DH run, but one ride aboard Norco's Aurum might have you stoked about the refined composure of this speed fiend's character. 27.5-inch wheels provide a quick and stable foundation, while precision carbon fiber engineering gives the Aurum's frame loads of stiffness for pinpoint control. Norco chose to design the Aurum around the real-world benefits of a 7-speed cassette, using 142mm rear axle spacing to optimize the chainline and increase heel clearance, while keeping tighter gear ratios for race-winning runs. The Aurum C7.1 Framekit includes a Fox Float X2 Factory rear shock and Norco 142x12 thru axle.
Norco Aurum C7.1 Frameset
$1,485.00
Norco’s Aurum Carbon 7.1 is here to blast backwoods shuttle runs, laps in the park, and World Cup courses alike. Its super-responsive, lightweight carbon frame uses race-proven geometry to rip corners and maintain stability when tackling some of the nastiest tracks on earth. Norco knows that DH bikes experience some of the roughest riding conditions, so they incorporate Armorlite resin and integrated frame guards throughout to bolster impact resistance, meaning you can focus on taking the fastest line, not necessarily the safest. Norco’s A.R.T. rear suspension with Gravity Tune powers Cane Creek’s insanely adjustable Double Barrel coil shock for a perfect blend of big-hit compliance with pedaling efficiency. Build up the Aurum Carbon 7.1 and get ready for the ride of your life!
Norco Aurum HSP Frame
$3,599.00
The Aurum HSP was created for one single purpose: to be the fastest downhill mountain bike available. The Aurum HSP's full carbon frame is engineered for maximum strength and increased vibration damping at speed. The High Single Pivot suspension relies on precision kinematics and a chain idler wheel to ensure the suspension absorbs any obstacle between you and victory, while remaining unaffected by drivetrain forces. The adjustable reach ensures easy adjustment for rider fit or preference. Available in both 27.5 and 29" models, the Aurum HSP features Norco's Gravity Tune geometry to provide the same ride characteristics and weight balance across all three frame sizes. Starting with this world-class frame, you get to determine every detail and scrutinize every part in building your ultimate descender to power around every corner and across the finish line for your time in the Hot Seat.
Norco Aurum HSP Framekit
$2,919.00
The Aurum HSP was designed with a single purpose: to be the fastest downhill bike Norco has ever made. As an integral bike within Norco’s Race Development Program, the Aurum HSP’s proprietary design was developed and tested by Norco engineering in conjunction with the Norco Factory Racing Team. After a full year of testing and riding, including a complete UCI World Cup Downhill season, the result is a no-compromise DH race machine that delivers superior grip and control, capable of taking on the toughest tracks in the world in pursuit of gold. - Aurum HSP Full Carbon Frame: Lightweight and durable full carbon fiber frame for improved stiffness-to-weight ratio, increased vibration damping and maximum strength - Gravity Tune: Ensures optimal body position and ideal front/rear weight distribution for riders of all sizes to deliver superior handling and control at high speeds - A.R.T. Suspension: The most extreme iteration of Norco’s proven A.R.T. suspension philosophy to date. Optimized for DH race purposes delivering superior grip, support, and control on steep and rough terrain - Adjustable Front Center: Allows riders to make easy adjustments to the bike’s front center and wheelbase length for quick and easy fit and setup tuning - 27.5" or 29” wheels: offering M-XL riders a choice of wheel sizes to further fine-tune handling characteristics based on their riding style
Norco Optic Carbon Frame
$2,499.00
The Optic FS frame is the basis for a fast short travel carbon fiber trail bike with the agility and confidence you need to look further up the trail — but you get to kit it out the way you want! Using Norco's holistic approach to fit, geometry and suspension kinematics, the Optic's playfully aggressive personality is complemented by 125mm of rear travel via a full-custom RockShox Super Deluxe Ultimate DH rear shock, and is designed around a 140mm travel, tapered steerer fork, 29-inch wheels and Boost thru-axle dropout spacing.
Norco Optic Carbon Framekit
$2,479.00
The Optic Carbon is a fast-pedaling trail bike that rides with just the right mix of cross-country efficiency and all-mountain capability. Ride faster, with more control, and complete confidence – the Optic gives you a whole new perspective on the trail and is the ideal bike for all-day trail adventures.
Norco Range Carbon 7.3 Framekit
$1,557.00
Want to see what you're capable of? First, you need a bike to get you there. Get started with Norco's Range Carbon 7.3 Framekit. Its lightweight carbon frame is seriously stiff for inspired cornering and wonderful responsiveness, while the 650B wheels increase traction and hold momentum like a 29er, yet are quick, playful and strong like 26-inch hoops. Out back you've got 160mm of Norco's legendary A.R.T suspension so you'll have the confidence and control to barrel into anything full speed. Oh yeah, that's all driven by a Cane Creek Double Barrel shock for maximum trail steeze. The 7.3 framekit has the mount for a front derailleur, so it's all ready to go for 2x or 1x systems.
Norco Range Carbon Frame
$2,399.00
The Norco Range Carbon is built to win Enduro races and to make the most of every big, burly backcountry excursion you can conjure. The Range Carbon is available in both 27.5" and 29" wheel versions to suit the demands and preferences of every Enduro rider. The 29" version features 150mm of rear-wheel travel, while the 27.5" gets 160mm from the RockShox Super Deluxe Coil Select+ rear shock. Each is designed around forks with 20mm more travel than the rear. With so many particular riders out there who know precisely how they want their equipment set up and which components they want to use for their dream build, we're offering the Range C frame so you can be your own team manager, team mechanic, and star rider, and take charge of your entire build — or just transfer the parts over from the bike you're looking to update!
Norco Range Carbon Framekit
$2,639.00
The Range Carbon is the ideal Enduro bike, purpose-built to rip downhill with category-bending capability. Available in 27.5" and 29" models, the Range Carbon features modern Enduro suspension performance and geometry optimized for each wheel size. It climbs efficiently but unleashes its full potential when pointed downhill - delivering confidence-inspiring stability and control for serious speed over technical terrain. Race an Enduro, shred gnarly single-track with friends, or skip the pedaling and do a few laps of the bike park - the Range Carbon is the ultimate accomplice.
Norco Revolver 7 SL Framekit
$840.00
The Revolver 7 SL from Norco is always ready to punch in and take care of business. Its feathery, stiff, and oh-so-responsive high-modulus carbon frame lets you float up hills, rip corners, and mash it to the line against the best of them. It's oversize tapered head tube is optimized for a 100mm fork and the PF30 bottom bracket delivers all your power to the rear wheel. And, 27.5-inch wheels make it playful, maneuverable, and outright fun to ride. Looking for the ultimate XC business partner? Look no further.
Norco Revolver 7XX1 FS Framekit
$2,299.00
The Revolver 7XX1 FS is a featherweight full-suspension cross-country carbon race weapon forged with cross-country performance for efficient power transfer, and Norco's gravity-fueled pedigree for poised bump compliance. Explosive acceleration. Magnetic trail tracking. Shoot first and annihilate your competition—this 27.5-inch Revolver is loaded with powerful potential. Framekit includes a RockShox Monarch RL rear shock, headset, rear thru axle, and seatpost clamp.
Norco Revolver FS Framekit
$1,679.00
Raced on the World Cup stage by the Norco Factory Team, the Revolver is purpose-built to be the ultimate weapon for XC competition. Its stiff, feather-light carbon frame and XC Race geometry will have you surging up climbs, while the A.R.T. Suspension system delivers maximum pedaling efficiency and predictable, stable support when the course gets chunky. The Revolver has what it takes to win — you supply the heart.
Norco Torrent HT S Frame
$799.00
If you want to get back to the basics, the Torrent is the way to go — it’s an aggressive, high-speed chromoly hardtail that eats hype for dinner and lets you prove your mettle on the toughest trails. Using Norco's holistic approach to fit and geometry, the Torrent's unique combination of our next generation of Gravity Tune, longer reach, slacker head tube angle, and steep seat tube angle provides a more forward weight distribution within a longer wheelbase. This allows more powerful pedaling, increased climbing traction, and added grip and control when descending. With so many free-thinking riders out there who're dedicated steel fans, we had to offer the Torrent as a frame kit, because those same free-thinking brains also have a very specific way they like their bikes to be built. With ample clearance for 29x2.5" tires and geometry based around a 150mm travel fork, the build possibilities are endless!
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