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Mountain Frames

Ritchey Ultra Frame
$999.00
If there's one thing Tom knows, it's dirt. When he first designed the Ultra, he knew it would appeal to riders who demand specific ride characteristics and dirt slaying only he could deliver—and that was in the 1980s! Good design withstands the test of time, and the latest iteration of the Ultra is a prime example. Like its predecessor from 30 years prior, the new Ultra occupies a unique ride space from cross-country riders looking to get rowdy and go big to enduro riders lusting for some all-mountain shredding. Designed around a 120mm travel fork and super-stable Boost 148 spacing, most of the fun is in the wheels. Designed to accommodate 29" or 27.5" wheels, the Ultra is highly versatile. Throw on some 29s for some trail-smashing XC riding or saddle up some 27.5+ for some serious no-holds-barred shredding. The Ultra is a rough and rugged trail master that doesn't know when to quit. Features: - Compatible with 27.5 x 2.8" and 29 x 2.4" tires - Material: heat-treated, triple-butted Ritchey Logic steel tubing—TIG welded - Ultra-light forged and machined tapered head tube - Optimized for 120mm (BOOST) suspension travel fork or 500mm axle-crown rigid fork - Headset: integrated—1.5" tapered - Headset upper bearing: 41.8mm OD / IS42/28.6 (S.H.I.S.) - Headset lower bearing: 52mm OD / IS52/40 (S.H.I.S.) - BOOST 148mm spacing (12mm alloy thru-axle included) - External cable routing - Replaceable stainless-steel derailleur hanger - 30.9mm seat tube with stealth dropper routing and replaceable seat collar - Front derailleur clamp size: 34.9mm (max torque setting: 2.5Nm)—not included - Bottom bracket: 73mm—English threaded - Designed for 1X or 2X chainrings (Side Swing front derailleur required for double) - BOOST cranks must be used for proper 52mm chainline - Crankset maximum ring size: 38T single—26/36T double - Recommended tire size: 27.5x2.4 (2.8 max) or 29x2.25 (2.4 max)—tire size varies by rim and tire manufacturer - Post-mount rear brake: 160mm (180mm max—adaptors available separately) - Sizes: S (15") / M (17") / L (19") / XL (20.5") - Weight: 2.57kg (L/19")
Surly Karate Monkey Frameset
$999.00
Karate Monkey is a highly versatile trail bike that plays the part of 29er and 27.5+ equally well. 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 huge 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 Krampus Frameset
$999.00
As the first "plus" bike to hit the market, Krampus changed the way many people approach trail riding. It's shown people the light of how high-volume, large-diameter tires can vastly improve the ride experience. It's also done a bang-up job dispelling the myth that big tires make you slow. Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business. - 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 3" tires
Surly Ogre Frameset
$949.00
The Ogre can get you to your job during the week, then way out of town on the weekend. It’s not sluggish on pavement or gravel and can also hold its own on singletrack. Ogre brings several sensible features to the 29er platform, including horizontal slotted dropouts with Gnot-Boost spacing, a tweaked non-suspension corrected geometry, and a beefy tire clearance. - 100% Surly Chromoly steel, double-butted main triangle - TIG-welded, Horizontal slotted with derailleur hanger, Gnot-Boost spacing allows the use of 135mm QR hub, 142 x 12mm thru-axle or 148 x 12mm Boost hubs. Features Rohloff torque arm slot and threaded eyelets for fenders, racks and Surly trailer mounts - Full-length Surly Trip Guide housing line guides for derailleurs and brakes; two sets of bottle cage mounts; upper seatstay threaded barrels, mid- and low-blade fully threaded through-blade fork eyelets; threaded holes for racks, fenders and trailer mounting nuts; Rohloff OEM2 axle plate mounting slot - Disc brakes only. Disc mounts are 51mm IS. Note: rear disc brake is limited to 160mm maximum rotor diameter and requires the use of Surly caliper adaptor (included with frames and bikes) - Frame is E.D. coated for increased life expectancy - Tire clearance for 29 x 2.5" or 27.5 x 3"
Surly Wednesday
$799.00
The All-Around Fat 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 tire trail 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 Specs: - Rear Dropout Configuration: Horizontal slotted with optional vertical dumpout - Rear Hub Spacing: 12 x 177mm (Surly axle included); 10 x 170mm with Surly 10/12 Adapter Washers (not included) - Front Hub Spacing: 15 x 150mm (Surly axle included) - Rear Brake: Disc - 51mm I.S. (203mm max rotor) - Front Brake: Disc - 51mm I.S. (203mm max rotor) - Head Tube: Ø44mm - Steerer Tube: Ø28.6mm (1-1/8") - Crown Race: Ø30mm (1-1/8") - Stock Headset Upper (S.H.I.S.): ZS44/28.6 - Stock Headset Lower (S.H.I.S.): EC44/30 - Front Derailleur (Clamp): High direct mount top-pull (Ø34.9mm) - Max Chainring (CL): 1x (Fat bike 170): 34T; 2x (Fat bike 170): 26/38T; 2x (Surly OD): 22/36T - Tire Clearance Frame: 26 x 4.3" (rear axle position); 26 x 3.8" (front axle position); 29 x 3.0" - Tire Clearance Fork: 26 x 5.25"; 29 x 3.0" - Rigid Fork Spec: 468 x 47mm - Max Suspension Fork Length: 511 x 51mm (Fatbike 100mm) - Bottle Mounts Frame: 2 Standard (XS - M); 3 Standard (L - XL) - Bottle Mounts Fork: 2 Three-Pack - Rack Mounts Frame: Yes (upper and lower threaded) - Rack Mounts Fork: Yes (upper, lower, and mid-blade threaded) - Fender Mounts Frame: Yes - Other Features: Internal dropper post routing compatible
Marin Alpine Trail Carbon Frame
Big mountains, epic passes, and all-day ripping descents. If you live for the alpine adventure and gravity-fueled downhills, look no further than the Alpine Trail series. Updated for 2021, the Alpine Trail is built around the longest travel version of our critically acclaimed MultiTrac platform with progressive slack headtube/steep seattube geometry, low-slung aluminum frames, and 29" wheels. The Alpine Trail is here to conquer all singletrack in its path. Unidirectional Carbon Fiber Frame - Alpine Trail Carbon 1 and 2 models feature high modulus carbon fiber and monocoque construction to deliver the strongest and stiffest Alpine Trail to date. Modern Geometry - The Alpine Trail is at the cutting edge of aggressive enduro geometry, bringing you the best long travel bike for the job. A 63.5° headtube angle, 78° seat tube angle, short 430mm chainstays, and a long front center unlock the trail for pure long travel bliss. Functional Long Travel - The Alpine Trail was built to give riders long travel with no sacrifice in pedaling efficiency, providing a bike that will outshine the competition on the climb and still allow you to hold it wide open on the descents.
Marin El Roy Frame
El Roy combines the classic robust yet forgiving character of chromoly steel meets modern-day long and slack geometry, a match as perfect as mountain biking and post-ride burritos. This new 29" wheel trail slayer was purpose built for silly fun days in the woods, no matter the conditions. Use it as a back-to-the-roots, all-in-one trail slayer, or as that perfect "n+1 bike," on days when the full-suspension bike stays at home in the shed. Named in honor of our favorite post-ride taqueria, the El Roy is overflowing in solid spec choices, all wrapped up with a stout Series 3 double butted and formed CrMo frameset. Grab one of two frame sizes, Regular or Grande, and enjoy the delicious goodness that we've cooked up. Series 3 CrMo Frame - The El Roy is built on a stout Series 3 4130 CrMo frame with investment cast dropouts, integrated drop-in headset, and external brake and hose mounts, all fully ED coated for longevity. Geometry - Gravity-oriented geometry, with a 63° headtube and 78° seattube angles, 44mm fork offset, and long reach measurements. Investment Cast Dropouts - Custom investment cast CrMo 148x12mm Boost thru-axle dropouts provide strength and stiffness where you need it most.
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