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Mountain

Mountain Bikes

If you're right at home on the rocks, roots, and dirt of your favorite trails, you belong on a mountain bike from Fond du Lac & Oshkosh Cyclery! We've got an awesome selection of mountain bikes to get you up and down the mountain, no matter what kind of mountain biking you do. 

Giant Fathom 29 2 (Crest fork)
$1,380.00
Crank up steep climbs with smooth-rolling efficiency. Swoop down singletrack descents with stability and speed. This aluminum hardtail 29er features progressive trail geometry, a plush suspension fork and dropper seatpost for the confidence you need to up your singletrack game. Built on an ALUXX SL aluminum frame, the Fathom 29 features updated geometry that produces a stable ride quality for challenging XC trails. The frame is optimized for a 130mm suspension fork for smooth control on the descents. An updated Giant WheelSystem comes with tubeless tires already set up, making it easy to experience added efficiency and control, plus a reduced risk of flats on technical terrain. KEY PERFORMANCE FACTORS Trail Tuned Design Balanced geometry with a 75-degree seattube angle puts the rider in a powerful pedaling position on the climbs, while a slacker 66-degree head angle boosts confidence and control on technical descents. Responsive Handling Lightweight ALUXX SL aluminum hardtail frame offers agile acceleration and maneuverability to help riders climb, corner and hammer the flats with efficiency and speed. Smooth Control Giant Crest 34 suspension fork with 130mm of travel absorbs roots, rocks and ruts. Grippy, high-volume tires boost traction on rugged terrain. And a dropper seatpost with handlebar remote lets you adjust saddle height on the fly for confident positioning on changing terrain.
Trek 820
$419.99
820 is an excellent entryway to a world of off-road adventures. It's the most affordable mountain bike in our lineup and the ideal choice for beginners who are interested in the MTB life but also want a hybrid bike that's as equally suited to light trails as it is to potholed city streets. It's right for you if... You're ready to try your hand at mountain biking to see if you fall in love, and want a bike you can ride wherever you choose. You plan to ride all types of terrain, from city streets to gravel paths and light singletrack. The tech you get 820 has a strong steel frame, semi-slick tires that roll well on pavement and trails, durable alloy wheels, and a suspension fork that takes the edge off bumps. Plus, it has mounts so you can accessorize with racks, fenders, lights, a fitness tracker, a kickstand, and more! The final word 820 is a great bike for anyone testing the waters of off-road riding. It's versatile, durable, and works well on rough pavement, light trails, or both. Why you'll love it - 820 is a great bike at an even better price, and it lets you explore off-road riding without the giant price tag that comes with higher-end mountain bikes - The high-volume mountain bike tires and suspension fork take the edge off rough roads and trails - Rack, fender, and kickstand mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter
Trek X-Caliber 8
$1,199.99
X-Caliber 8 is a cross country mountain bike made for fast laps and long days on the trail. It's built with special attention to value and the parts that make the biggest difference in performance. A 1x SRAM drivetrain, RockShox fork, and hydraulic disc brakes make it a great choice for new mountain bikers and XC racers searching for fast, fun, singletrack adventure. It's right for you if... You're looking for a fast mountain bike for singletrack—one that's fully capable of taking on races, marathons, and competitive group rides. You want something that is reliable and fun with dependable, lightweight parts. The tech you get A lightweight Alpha Gold Aluminum frame, a RockShox 30 Silver 100mm suspension fork with a lockout and an air spring that's lighter and more adjustable than a coil spring, Bontrager Kovee Tubeless Ready wheels with Boost141 hub spacing, Shimano hydraulic disc brakes, and a smooth, efficient SRAM SX Eagle 1x12 drivetrain with a wide-range cassette. The final word With X-Caliber 8, you're getting a performance frame paired with performance parts, like a RockShox air fork and 1x SRAM Eagle drivetrain. Plus, it's equipped with durable, lightweight alloy rims that save weight and are easy to upgrade to tubeless. Why you'll love it - It has the price of a more basic hardtail and the performance of a more expensive one - The RockShox air fork has a rebound adjust and can be tuned to the rider’s weight, and it’s way higher quality than what you’d normally get on an MTB at this price - The frame is fully compatible with higher-end parts, like race wheels and a dropper post, if you ever find the need to upgrade - Smart Wheel Sizing means you'll get the fastest wheel that fits (29" wheels on larger frames, 27.5" wheels on smaller frames)
Trek 820 - Women's
$419.99
820 Women's is an excellent entryway to a world of off-road adventures. It's the most affordable mountain bike in our lineup and the ideal choice for women who are interested in the MTB life but also want a hybrid bike with a confidence-building step-through frame and a saddle made specifically for women. It's right for you if... You're ready to try your hand at mountain biking to see if you fall in love, and want a bike you can ride wherever you choose. You plan to ride all types of terrain, from city streets to gravel paths and light singletrack. The tech you get 820 Women's has a steel step-through style frame that's easy to mount and dismount, semi-slick tires that roll well on pavement and trails, durable alloy wheels, a seat made for women, and a suspension fork that takes the edge off bumps. Plus, it has mounts so you can accessorize with racks, fenders, lights, a fitness tracker, a kickstand, and more! The final word 820 Women's is a great bike for women testing the waters of off-road riding. It's versatile, durable, and works well on rough pavement, light trails, or both. Why you'll love it - 820 Women's is a great bike at an even better price, and it lets you explore off-road riding without the giant price tag that comes with higher-end mountain bikes -The high-volume mountain bike tires and suspension fork take the edge off rough roads and trails - The step-through-style frame makes it easy to mount and dismount - Rack, fender, and kickstand mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter
Giant Yukon 1
$2,100.00
Why follow tracks when you can make your own? Experience the “foot out, flat out” fun of fat bike riding in any season. Whether you’re tackling fresh snow pack or drifty sand dunes for days, the new Yukon will keep you rallying your favorite terrain in a whole new way. Low Center of Gravity Playful Trail Bike Sloping "low slung" front triangle design provides a low center of gravity for technical maneuvering with ease or countersink control in deep conditions. Maximum Heel Clearance with Low Q-Factor With a heavily swaged rear triangle including dropouts, seatstays and chainstays, this versatile design allows even warmest of riding boots to be worn, while the narrow Q-Factor crank specification provides a more natural feeling cycling experience. Custom Wheelbase Adjustment and Tire Size Flexibility The horizontal adjustable drop out system allows for +/- 15mm rear center length adjustment and tire sizing up to 27.5 X 4.5” for maximum floatation and a fun, playful ride
Trek Session 27.5 Carbon Frameset
$3,999.99
Going down? World Cup champion Session is built to win. An all-new OCLV Carbon frame, updated geometry, advanced air shock, and a stiffer chassis make this downhill race bike faster than ever. Session is the DH bike that excels on downhill's most brutal courses. Take on any terrain with our most advanced suspension and a geometry that can be dialed for every race. Key features: - Longer, more aggressive geometry keeps you attacking the whole way down - OCLV Mountain Carbon with Carbon Armor is downhill tough - Fine-tune your ride with Mino Link and an all-new adjustable headset system - Fast 27.5" wheels get you down the mountain first
Giant Reign Advanced Pro 29 Frame
$3,200.00
Developed with the Giant Factory Team riders who push the limits of their bodies and bikes week in and week out, this bike is made to boost confidence and shave seconds on the most punishing enduro terrain. We engineered the geometry of the Advanced composite frame and swingarm around larger diameter 29-inch wheels. That means shorter chainstays, a longer toptube, and just the right angles with the headtube (64.56 degrees) and seattube (76.36 degrees). We gave it an updated Maestro rear suspension system with 146mm of travel. The trunnion mount shock and Advanced Forged Composite rocker arm deliver an active, super plush feel on the trail. Other features including a cleanly routed dropper seatpost and a new Giant WheelSystem with Boost hub spacing and tubeless tires complete this race-ready package.
Liv Hail Advanced 0
$5,890.50 $8,250.00 29% Off
Hail to the queen. Built to come alive at high speeds for the uncompromising trail rider, this enduro-capable bike can pedal and descend technical terrain like a dream. With 160mm of perfectly-tuned suspension and unmatched traction and control, the Hail Advanced is built for women who charge technical terrain, up and down. Predictably drift through corners and hold your line with confidence in speed-sucking rock gardens. Take advantage of the super lightweight frame design with mind-blowing power transfer, for extra climbing prowess to you get you to the top before charging down technical, playful descents. - Advanced-grade composite mainframe with 160mm of smooth Maestro suspension to provide optimally tuned stiffness and compliance for female riders - RockShox Lyric RCT3 160mm-travel fork with Boost Maxle Stealth thru-axle - RockShox Super Deluxe Coil RT Remote trunnion mount rear shock - 27.5-in DT Swiss EX 1501 wheelset with Maxxis Shorty and High Roller II tubeless tires optimizes traction and efficiency - SRAM X01 Eagle 1x12-speed drivetrain with SRAM Guide RSC hydraulic disc brakes for precise braking and control in all terrain and variable weather conditions - Boost 15x110 [F], 12X148 [R] hub spacing improves stiffness, trail handling, and tire clearance - Advanced Forged Composite Technology is used to create a lightweight composite upper rocker arm that achieves impressive lateral stiffness and strength - OverDrive steerer for precise steering, stiffness, and control - Designed using Liv’s 3F Design Philosophy to build bikes for women - LivRight Sizing Philosophy for the perfect fit across all sizes
Surly Big Fat Dummy
$3,175.00
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.
Surly Big Fat Dummy Frameset
$1,599.00
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.
Trek Supercaliber Frameset
$4,179.99
Supercaliber Frameset is built with light-yet-tough OCLV Mountain Carbon and our exclusive IsoStrut integrated shock for a cross country race bike that's insanely fast and capable. Pair it with a 100mm fork and your favorite parts spec for a field-leading build that'll crush even the toughest courses. It's right for you if... You’re looking to build up a super light and capable cross country race bike. You know you want the efficient yet plush ride our IsoStrut shock provides, but you want to spec the rest with parts you've hand-picked to suit your preference. The tech you get An ultra-lightweight, full OCLV Mountain Carbon frame with 60mm of travel and Trek's exclusive IsoStrut Fox Performance shock designed specifically for Supercaliber. Plus, Control Freak internal routing and a Knock Block headset. The final word Supercaliber Frameset lets you build up a pro-level cross country race bike just the way you like it. The OCLV Mountain Carbon frame is lightweight and strong, and comes with our exclusive IsoStrut shock for efficient capability. Why you'll love it - Supercaliber is a World Cup-worthy bike that’s quick, capable of soaring through techy terrain, and nearly as light as a hardtail - Our exclusive IsoStrut shock provides tuneable, damped suspension for a smooth and efficient ride - Pivotless seat stays save on weight and actively bend to help soak up trail chatter
Cannondale Trail 8
$575.00 - $600.00
Level Up. A mountain bike built to raise your game and ignite a passion for the trail. Designed for the mountains and ready for anything. Highlights - Light and durable SmartForm C3 Alloy frame - SR Suntour M3030 suspension fork, 75mm travel - 7-speed drivetrain w/ double chainring cranks / Tektro mechanical disc brakes Where it thrives - Low-impact trails, gravel roads, leisurely ride What it's built for - Handling, durability Wheel size: - Sizes X-Small – Small: 27.5-inch - Sizes Medium – X-Large: 29-inch
Liv Tempt 4
$520.00
GET ON THE DIRT AND RIDE YOUR WAY TO YOUR FIRST SINGLETRACK.TEMPT IS THAT FRIEND THAT OPENS A WHOLE NEW WORLD TO YOU. KEY PERFORMANCE FACTORS Confidence Inspiring Perfect as your first mountain bike, the ALUXX-Grade Aluminum frame is lightweight, capable and durable. Versatile Tempt’s performance-minded yet comfortable geometry gives it the versatility for both commutes around campus and off-road rides. Liv 3F Design Philosophy Women’s-specific geometry ensures the rider is balanced over the bike for optimal efficiency, comfort and control. WHY WE LOVE IT With a lightweight ALUXX-Grade aluminum frame designed specifically for women, Tempt can guide you along dirt terrain with speed, efficiency and control. A front suspension fork and powerful disc brakes offer added confidence and control. This hardtail has a low standover height to give you confidence maneuvering around dirt trails and is offered in 27.5 or 29-inch wheels for optimum fit and efficiency. Perfect for a functional around-town ride, to try as your first off-road racing bike, or for venturing out onto the trails for the first time, allow Tempt to lead you to new adventures. Wheel size: Sizes X-Small – Small: 27.5-inch Sizes Small – Large: 29-inch
Trek Marlin 5
$549.99 - $569.99
Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. A suspension fork, 21 speeds, and mounts for a rack and kickstand make it an ideal choice for new trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike. It's right for you if... You're new to the trail and you’re looking for a real mountain bike that doubles as a commuter—and you want it all at an exceptional value. The tech you get A lightweight aluminum frame with internal shift cable and brake hose routing to protect your cables and add to the bike's sleek look, 21 speeds, a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes, and a suspension fork that takes the edge off bumps and rough terrain. The final word It’s built in Trek's MTB heritage, so you get a great ride for all your adventures. But it's also versatile, and Marlin 5 is a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorize and haul a load. Why you'll love it - It's a real mountain bike that's also perfectly suited to daily commutes, rides around campus, or just getting from A to B on any surface - Smaller frame sizes (XS and S) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently - Marlin models in XS and S frame sizes have a curved top tube and a lower standover height that makes it easier for smaller riders to mount and dismount - Rack and kickstand mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - Like every model in the Marlin family, it's backed by Trek's lifetime warranty
Giant Yukon 2
$1,630.00
Why follow tracks when you can make your own? Experience the “foot out, flat out” fun of fat bike riding in any season. Whether you’re tackling fresh snow pack or drifty sand dunes for days, the new Yukon will keep you rallying your favorite terrain in a whole new way. Low Center of Gravity Playful Trail Bike Sloping "low slung" front triangle design provides a low center of gravity for technical maneuvering with ease or countersink control in deep conditions. Maximum Heel Clearance with Low Q-Factor With a heavily swaged rear triangle including dropouts, seatstays and chainstays, this versatile design allows even warmest of riding boots to be worn, while the narrow Q-Factor crank specification provides a more natural feeling cycling experience. Custom Wheelbase Adjustment and Tire Size Flexibility The horizontal adjustable drop out system allows for +/- 15mm rear center length adjustment and tire sizing up to 27.5 X 4.5” for maximum floatation and a fun, playful ride.
Trek Session AL 27.5 Frameset
$1,999.99
Session AL 27.5 frameset is a burly alloy downhill mountain bike frame that's equally at home between the tape and at the DH park. It's built for 27.5-inch wheels, with 210mm of travel and a FOX Performance VAN shock tuned by Trek Suspension Lab. It's right for you if... You're looking to build a rugged DH or park bike for the biggest trails out there, and want a 27.5-inch optimized frameset with exclusive trail tech, like adjustable Mino Link geometry, that can't be found anywhere else. The tech you get A burly Alpha Platinum Aluminum frame, an adjustable FOX Performance shock with 210mm of travel, integrated frame protection, FSA Orbit headset, and exclusive trail tech like ABP, Full Floater, and Mino Link. Built for 27.5-inch wheels. The final word This burly frameset is perfectly capable of taking on the roughest, fastest descents you can find, and it's equally at home in the park, too. The best DH frame tech, a stable geometry, and a quality shock give you a head start on your dream downhill rig. Why you'll love it 1 - Session has the heart of a monster truck: it rolls over everything, gives you the confidence to take on rougher trails, and saves you when you don't take the right line 2 - Quality FOX Performance suspension and our ABP frame design keep you in control 3 - Race or get rowdy? This bike does both 4 - 27.5 wheels are great for flicking the bike around through the most technical trail
Trek Session C 29 Frameset
$3,999.99
While the rest of the industry was mucking about with 29" DH bike prototypes for professional mountain bike racers, we brought the party to the people with our first production 29er downhill bike. The Session C 29 frameset pairs fast-rolling 29er performance and our proven downhill frame technology. It's long, stable, and aggressive, with a geometry dialed for your fastest runs ever. It's Right for You If... You need speed. You live for it. You dream about it. And, when you're on the mountain, you're gonna get after it. You want faster-rolling 29" wheels, a carbon frame, and the latest DH tech out there. The Tech You Get Session 29 is built with ultra-light and ultra-durable OCLV Mountain Carbon, 190mm rear travel with a RockShox Super Deluxe Ultimate DH shock, Carbon Armor, and integrated frame protection like built-in bumpers for a double-crown fork. Plus, it has frame tech that lets you dial your geometry, like Mino Link and the included fixed-angle headset cups. The Final Word This is the fastest downhill bike we make. This 29er-optimized carbon ride is great for rolling over the rough stuff and getting to the finish line with plenty of time to spare. - Rear suspension: RockShox Super Deluxe Ultimate DH, 225x70mm - Weight: M - 3.24 kg / 7.14 lbs - This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg)
Liv Intrigue Advanced Pro 29 2
$4,700.00
Built to cover ground, mow over techy singletrack, and charge down aggressive terrain, the all-new intrigue advanced pro 29 prefers the rowdy side of life. Intrigue Advanced Pro 29 has arrived for those riders who fancy a fast-rolling, high-performance trail bike that can handle epic climbs and demanding descents. Our Advanced-Grade Composite frame leads the charge with women's-specific geometry, unique composite layup, and shock tuning specifically designed for women by women. With a 29-inch tubeless Boost wheelset compatible with tires up to 2.5", you can afford to run a slightly shorter travel setup without sacrificing fun on the trail. Intrigue Advanced Pro 29 offers a 140 mm suspension fork and a 125 mm of rear suspension on an ultra-light, torsionally stiff Advanced Forged Composite linkage. Meet all the demands of your terrain with Maestro flip chip, allowing you to change the geometry of the bike to be more suitable for climbing or descending, depending on your trail needs. Top Performance Trail - Advanced-Grade Composite frame, carbon wheelset, Maestro Suspension, and flip chip adjustable frame geometry equip you with a lightweight, versatile trail bike. Balanced Agility - With a versatile 125/140 mm platform and 29-inch wheels compatible up to 2.5-inch tires, Intrigue Advanced Pro 29 is a dream for both climbing agility and descending control. Truly Dialed for Women - The Intrigue Advanced Pro 29 is designed around Liv's 3F Design Philosophy combined with suspension testing conducted by women for women, and tuned to perfection.
Surly Big Dummy Frameset
$1,050.00
Big Dummy is a long-tail cargo bike, which means that not only can you haul a serious amount of cargo, different accessories can be added to your Big Dummy frame and deck depending on what you want to carry. Being a dedicated single-piece frame, instead of an add-on to an existing bike, it’s stiffer and resistant to torsional flex, which provides a better ride and longer lasting frame than long-tail add-ons. Like all Surly's frames, it’s made of size specific, 4130 CroMoly steel – a tube set engineered for cargo that sports lots of little touches that you’ve come to love in a Surly, like clearance for big tires and the use of common component sizes. Figure on being able to carry about 200 pounds (90kg) of cargo. The load weight, and how it’s loaded, will affect the handling somewhat. Also, plan on using gears, especially as cargo weight increases. This may seem obvious, but as you get comfy with it, you will use your full range of gears as never before. The included Dummy Rail Collars provide a secondary retention system for the rack, as well as stiffen the rack system so you can safely carry a passenger.
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