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Mountain Bicycles

Novice to pro, off-road to mountain, enjoy one of the world's finest mountain bicycles.

We have the most technically advanced mountain bikes at Trek Bicycles of Highland Park. The Chicagoland area may not have mountains (anywhere in sight), but we have off-road, crazy turns through the back hills and forests of the Midwest, that can definitely be enjoyed on a Trek Mountain Bike.

Trek Fuel EX 8 29
$3,199.99
- New 130mm frame is more capable and 29" or 27.5+ compatible - Boost148/110: stronger wheels, more tire clearance, shorter stays - Exclusive suspension tech with ABP & Full Floater - Straight Shot stiffness, Knock Block frame defense
Trek Marlin 7
$779.99
Marlin 7 is where race-worthy mountain bikes begin. The smooth, lightweight RockShox fork and widest range of gearing in the Marlin family make this model the best choice for new riders who want a cross country hardtail with great parts that will hold its own against Trek's higher-end race bikes. It's right for you if... You're new to the trail but have serious singletrack aspirations, and want a race-worthy mountain bike with upgrades on the parts that make a big difference in performance, like a higher quality suspension fork. The tech you get The flagship model of the Marlin lineup has a lightweight Alpha Silver Aluminum frame with internal derailleur routing to protect your cables and add to the bike's sleek look, a high-quality RockShox fork with a lockout feature and 100mm of travel, a 27-speed drivetrain, and a low-profile Shimano Shadow rear derailleur that's made to avoid snagging on trail debris. The quality fork and parts make Marlin 7 fully capable of taking on off-road marathon rides and XC races. The final word The RockShox suspension and wider range of gearing make it the best choice in the Marlin lineup for new mountain bikers who know they want a serious bike for their money. Why you'll love it - All the value, plus all the versatility—it's a totally race-worthy mountain bike, with rear rack mounts if you use it for commuting too - It's really fun to ride, and feels like a much more expensive mountain bike - Great suspension at an even better price - Like every model in the Marlin family, it's backed by Trek's lifetime warranty
Trek Remedy 7
$2,999.99
Remedy is the mountain biker's mountain bike. 27.5" wheels, an aggressive geometry, and a wealth of technical features make a bike that scores tens for capability. Want to push harder? Want more travel? Need a more capable build? Remedy is your full suspension ride to the next level. Key Features - New 150mm frame optimized for Enduro and technical trails - Boost148/110: stronger wheels, more tire clearance, shorter stays - Exclusive suspension tech with ABP & Full Floater - Straight Shot stiffness, Knock Block frame defense
Trek Superfly 5
$1,519.99
The bike that defined 29er mountain bikes continues to lead the charge. The Superfly lineup of crazy-light aluminum XC rockets isn't just fast. It's the fastest. If going fast is everything you're looking for, choose the 29er with the longest history at the top of the podium. Superfly is the pinnacle of cross country speed and efficiency. Key Features - Every feature of this XC race 29/27.5 is designed to go fast - Ride the fastest wheel that fits with Smart Wheel Size - Super-light hydroformed aluminum frame is built for speed - Racy geometry gets you lower, shortens the chainstays
Trek Farley 5
$1,889.99
Farley 5 is Trek's best value fat bike and the perfect gateway to all-season freedom. It rolls over snow, sand, roots, and rocks with the stability and traction of a monster truck on beefy 27.5x4.50-inch tires. A 1x Shimano drivetrain, lightweight aluminum frame, and carbon fork make it a great choice for anyone who wants to ride a mountain bike year-round, no matter the weather. It's right for you if... You're likely to ride year-round, even when it's snowing, and want a fat tire bike that gives you extraordinary capability and traction at a great value. The tech you get A lightweight Alpha Platinum Aluminum frame with Stranglehold dropouts, a Bontrager Haru carbon fork, a wide-range Shimano Deore 1x10 drivetrain, and Tubeless Ready SUNringle Mulefut wheels paired with extra-grippy 27.5x4.5 Bontrager Gnarwhal TLR tires. The final word Fat bikes are ridiculously fun. They're grippy and stable, but the best thing about them is that they get you outside in more seasons. If you're looking for a fun alternative to riding the roads or trainer through the winter, you won't find a better value than Farley 5. Why you'll love it 1 - Farley 5 is the perfect bike for breaking into the winter sports scene without breaking the bank 2 - It's an introductory model, but fully capable of taking on daily winter rides, fat bike races, and even summer trails 3 - It's a four-season freedom machine that lets you ride outside all year long 4 - The 27.5x4.5 tires deliver more speed and traction than their 26-inch counterparts
Trek Stache 7
$2,099.99
Fast. Agile. Confident. Capable. That pretty much sums up Trek's Stache 7. This bike gets down to business with 29-inch wheels wrapped with fat, 3-inch wide tires and a 120mm-travel Manitou fork that dares anything to get in your way. Trek loaded the Platinum aluminum frame with all the features of a fully legit trail bike, like G2 trail geometry, E2 tapered head tube, internal dropper-post routing and a Boost 148 rear end. That 148mm-wide rear end is enhanced by super short chainstays that let you rip through berms, dominate twisty trails, and out-accelerate your crew. SRAM's X1 cranks power a wide-ranging GX 1x11-speed drivetrain, and SRAM Guide R brakes bring regulate that speed smoothly and precisely. The Bontrager components are as light as they are tough, and just in case you don't want to roll the 50mm-wide Mule rims all the time, the Stache's Stanglehold dropouts are compatible with 27.5+ and standard 29-inch wheels too!
Trek Top Fuel 8
$2,699.99
The bike that ruled the podium at the height of mountain bike racing is back to reclaim the top step. Refined and reinvigorated with new technology, Top Fuel is the fastest bike on the trail. The better-than-ever Top Fuel is the fast, versatile choice for the cross country racer, marathon rider, and the entire Trek Factory Racing World Cup team. Key Features - RE:aktiv XC: the smartest, fastest, most efficient shock ever - Boost148/110: stronger wheels, more tire clearance, shorter stays - Mino Link adjustable geometry lets you fine tune your ride - Exclusive suspension tech with ABP & Full Floater
Trek Fuel EX 9 29
$3,999.99
Freedom to roam Modern trail geometry, 29? or 27.5? mid-fat options, and 130mm of travel make Fuel EX is the one go-to full suspension trail bike for all riders. Want a rugged, capable long-travel trail bike with the responsiveness of an XC bike? This is it. Fuel EX blends the best of both worlds in one uncompromising package. - New 130mm frame is more capable and 29" or 27.5+ compatible - Boost148/110: stronger wheels, more tire clearance, shorter stays - Exclusive suspension tech with ABP, Full Floater & RE:aktiv - Straight Shot stiffness, Knock Block frame defense
Surly Krampus
$1,550.00
Surly's Krampus rolls fast, holds speed, and devours corners. Surly built its Boosted frame and fork out of tapered and butted chromoly and gave the frame a long top tube and short chainstays, so it's playful, smooth, versatile, and durable. The 29 x 3-inch Dirt Wizard tires on 40mm Alex rims take your trail ride to new heights of fun. These big tires offer increased traction, incredible float, and reduce the need for suspension because the large volume is plenty to smooth the trail. You'll also get a SRAM NX 1x drivetrain, Answer Pro Taper bars, and SRAM Level hydraulic brakes to make you the new master of terrain that used to be out of bounds.
Trek 820 WSD - Women's
$399.99
Our entry-level 820 mountain bike is a versatile step in the mountain direction, equally suited to beginner trails and potholed city streets. If you've heard the call of the trail but aren't ready to commit to the MTB life, 820 is the perfect way to get your feet dirty. Key features - Quality construction and components, fantastic value - Ready to take on rough pavement, light trails, or both - 75mm suspension fork takes the edge off bumps - Backed by Trek's limited lifetime warranty
Electra Moto 3i
$639.99
Remember when your biggest worry was getting home before the streetlights came on? The Moto does. We’ve taken our beach cruiser and added a touch of old school BMX and new school off-road to give you the ultimate play bike. You’re not exactly going to be joining the race circuit on it, but you’ll definitely be popping some sick wheelies and hopping every curb in sight. Go ahead and lay down a little rubber if you want to. Available in the simple single-speed or a little fancier 3-speed. - 6061-T6 aluminum Mountain Cruiser frame - SRAM i-Motion 3-Speed w/Hayes disc brakes - BMX hollow chromoly crank and sealed cartridge bottom bracket - Alloy seat post - 29”x 2.125” Electra Moto knobby tires
Trek Farley 24
$890.99 $989.99 10% Savings
Trek is a family-owned company so they know a thing or two about bringing along the whole crew. Enter the Trek's Farley 24: the kid-size, all-season fat bike. Trek has been making some of the best kids' bikes for years so the Farley 24 is a sharp handling, steam-rolling monster truck of a bike. A 1x9 drivetrain powers the monstrous 4.0-inch tires and a host of Bontrager components rounds out the spec. All-season, all-family adventure begins with Farley.
Trek Fuel EX Jr
$1,889.99
Trek Kids' mountain bikes are the real deal, with light frames, knobby tires, quality parts, durable construction, and Dialed adjustable components that can grow with young riders. Adventurous kids deserve a true, trail-ready bike that will take them down the road or off the road with confidence and control. Key Features - Fully legit, fully loaded kids' version of Trek's great Fuel EX - X-Fusion Performance Suspension is tuned for lighter riders - Designed from the ground up for trail riders 4'4"–5' tall - More standover + lower BB + shorter reach = confident control
Surly Pugsley
$1,900.00
The Surly Pugsley may be the original fat bike, but this one is far from the original. Previously a great all-around fat bike, the Pugsley has been redesigned to be an ideal off-road touring and exploration rig. Surly lengthened the chainstays 12mm for stability when loaded and so your heels float effortlessly past panniers. The tweaked rear rack mounts on the dropouts let you center your rack over the wheel, despite the offset rear triangle. Those dropouts will take a 142x12mm thru axle if that's your schtick, but this rig comes with a 135mm QR hub, snug as a bug with a pair of adapter washers. Pugsley brings back the 135mm-spaced offset fork, so you can run a front wheel with a spare cog or freewheel as a bail-out option to swap with the rear if your internally-geared hub freezes up in neutral or you smash your derailleur having too much fun. A plethora of three-pack mounts give you gear-hauling options aplenty, and a Surly Moloko Bar gives your hands damn near as many options as well, so they stay clappably happy even on your longest, story-generating adventures.
Surly Karate Monkey
$1,550.00
Years ago the Karate Monkey helped start the 29-inch wheel movement and, as time's gone by, many companies ­– Surly included – have experimented with even more wheel sizes. With so many different types and sizes of tires now on the market, riders have begun to understand the effect that tire width has on overall wheel diameter, and with ample tire clearance, you can see the benefits of multiple wheel sizes all on one bike. 27+ tires have the same rolling diameter as a 29-inch wheel, yet you get all the traction and floatation benefits of extra-wide knobbies. And that's just the tires. The Karate Monkey frame has recently gotten a makeover that includes the addition of features like internal dropper post routing, a new tubeset that uses the same trumpet tubes found on Surly's Instigator 2.0, and a slight tweak in geometry that is more progressive and trail-oriented. The Karate Monkey uses a horizontal dropout with a derailleur hanger that features Gnot-Boost spacing, which gives the rider the ability to run any kind of mountain bike hub they choose. 10 x 135mm QR, 12 x 142, or 12 x 148 Boost will all work in the Karate Monkey frame. The frame uses a 44mm headtube for broad fork compatibility and is ED coated for an added layer of internal protection. If, at any point, you decide you want to throw on some skinny meats, standard 29-inch wheels and tires can be swapped in with no issue. If you want to round-house kick some trail right in the face, the Karate Monkey is your sled. - 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube - Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru, as well as 135mm w/ 10/12 washer - Internal dropper seatpost routing with 30.9mm seat tube ID - Clearance for 29 x 2.55 or 27.5 x 3 tires
Trek 820
$399.99
Our entry-level 820 mountain bike is a versatile step in the mountain direction, equally suited to beginner trails and potholed city streets. If you've heard the call of the trail but aren't ready to commit to the MTB life, 820 is the perfect way to get your feet dirty. Key features - Quality construction and components, fantastic value - Ready to take on rough pavement, light trails, or both - 75mm suspension fork takes the edge off bumps - Backed by Trek's limited lifetime warranty
Trek Marlin 5
$519.99 - $539.99
Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. A front suspension fork with 100mm of travel, 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 want a serious mountain bike that doubles as a commuter—and you want it all at an exceptional value. The tech you get A lightweight Alpha Silver Aluminum frame, 21 speeds, a wide range of gearing so you never need to pedal too hard or easy on terrain that varies in elevation, hydraulic disc brakes that feel smoother than mechanical disc brakes, and a suspension fork with 100mm of travel—that's the same amount favored by most cross-country racers. The final word Built-in Trek's MTB heritage, and more than capable of taking on trail adventures. But it's also versatile. It's 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 (13.5" and 15.5") have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently - It has separate brake and shift levers (a feature that's common on more expensive mountain bikes) so you can fine-tune the positioning for comfort - 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
Trek Marlin 6
$629.99
Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. A front suspension fork with 100mm of travel, 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 testing the waters of off-road riding, and want a real mountain bike at a great value, with a wide range of gears to cover more ground on the road and trail. The tech you get The heart of Marlin 6 is a lightweight Alpha Silver Aluminum frame with internal derailleur routing. It has 24 speeds, a wide-range cassette so you can always find the right gear for your terrain, hydraulic disc brakes that feel smoother than mechanical disc brakes, and a 100mm suspension fork with a lockout feature—that's the same amount of travel favored by most cross-country racers. The final word Performance features like suspension lockout, stronger double-walled rims, and hydraulic disc brakes. It's also equipped with rack and kickstand mounts and a wider range of gears. These design details make it a great choice if your mountain bike doubles as your commuter. - Lots of gears so you can cover a lot of ground fast, without ever pedaling too easy or too hard - Smaller frame sizes (13.5-inch and 15.5-inch) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently - It has separate brake and shift levers (a feature that's common on more expensive mountain bikes) so you can fine-tune the positioning for comfort - 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
Trek Marlin 6
$579.99 - $589.99
Marlin takes its cue from light, fast XC bikes. The right wheel size for each frame size, performance pedigree, and unbeatable ride feel make Marlin the perfect trail rider. When you're ready for longer days on the bike, bigger challenges on the trail, and all the fun of the full mountain biking experience, you're ready for Marlin. Key Features - Ride the fastest wheel that fits with Smart Wheel Size - Ride-tuned aluminum frame is XC light, mountain tough - Extended size range gives you a better fit for a better ride
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 Shimano 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 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, and a smooth, efficient Shimano Deore/XT 2x10 drivetrain with a Shimano XT Shadow rear derailleur, which stays tucked out of the way to avoid snagging on trail debris. The final word With X-Caliber 8, you're getting a performance frame paired with performance parts, like a RockShox air fork and a rear derailleur that's the gold standard for MTB performance and reliability. 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 can be tuned to the rider's weight, so you always have a custom ride that's right for you - 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 X-Caliber 7
$929.99
Caution: X-Caliber will get you hooked. It packs all of Trek’s XC race hardtail experience into a light, fast bike that pairs the right wheel size with each frame size. Nothing beats the efficiency, simplicity, and straight-up fun of an X-Cal hardtail in 29er or 27.5". Great for XC racing, or simply shredding singletrack. Key Features - Race-ready spec: 2x drivetrain options, lockout, hydraulic discs - Light, precise race frame for a fast, refined ride - Ride the fastest wheel that fits with Smart Wheel Size - Extended size range gives you a better fit for a better ride
Trek Remedy 8
$3,299.99
Remedy is the mountain biker's mountain bike. 27.5" wheels, an aggressive geometry, and a wealth of technical features make a bike that scores tens for capability. Want to push harder? Want more travel? Need a more capable build? Remedy is your full suspension ride to the next level. Key Features - New 150mm frame optimized for Enduro and technical trails   - Boost148/110: stronger wheels, more tire clearance, shorter stays   - Exclusive suspension tech with ABP, Full Floater & RE:aktiv  - Straight Shot stiffness, Knock Block frame defense
Trek Marlin 4
$449.99 - $469.99
Key features - Ride the fastest wheel that fits with Smart Wheel Size - Ride-tuned aluminum frame is XC light, mountain tough - Extended size range gives you a better fit for a better ride - Backed by Trek's limited lifetime warranty
Surly ECR 29+
$1,900.00
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 Surly is 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 29+ sizes have two water bottle mounts and one set 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.
Trek Superfly 6
$1,789.99
The bike that defined 29er mountain bikes continues to lead the charge. The Superfly lineup of crazy-light aluminum XC rockets isn't just fast. It's the fastest. If going fast is everything you're looking for, choose the 29er with the longest history at the top of the podium. Superfly is the pinnacle of cross country speed and efficiency. Key Features - Every feature of this XC race 29/27.5 is designed to go fast - Ride the fastest wheel that fits with Smart Wheel Size - Super-light hydroformed aluminum frame is built for speed - Racy geometry gets you lower, shortens the chainstays
Trek 1120
$2,649.99
Key features - Plus-sized touring: bigger tires, bigger terrain, bigger adventures - All-new proprietary rack system for backcountry gear storage - Carbon adventure fork: light and strong, with mounts aplenty - Go-anywhere adventure spec: wide range 1x drivetrain, disc brakes, & dropper post
Trek X-Caliber Frameset
$589.99
Full of fast, built to last. Caution: X-Caliber will get you hooked. It packs all of Trek’s XC race hardtail experience into a light, fast bike that pairs the right wheel size with each frame size. Nothing beats the efficiency, simplicity, and straight-up fun of an X-Cal hardtail in 29er or 27.5". Great for XC racing, or simply shredding singletrack. - All-new lightweight Alpha Gold Aluminum frame delivers a phenomenal ride quality - Shorter chainstays and Boost141 hub spacing for increased agility and clearance for wider tires - Updated geometry and E2 tapered head tube for more confident handling - Sleek internal routing protects cables and accommodates dropper post upgrades
Trek Procaliber 8
$2,199.99
The smarter hardtail Procaliber sets the bar for hardtail speed and smarts. It's the fast, ultralight cross country ride that rules the singletrack, from the local race scene to the World Cup XC. Procaliber's innovative IsoSpeed decoupler delivers uncompromising XC performance, efficiency, and an incredible ride feel. It's the fastest, smoothest, smartest hardtail on the trail. - Smooth IsoSpeed decoupler: ride faster, stronger, longer - Boost148/110: stronger wheels, more tire clearance, shorter stays - Superlight hydroformed aluminum frame is built for speed - Ride the fastest wheel that fits with Smart Wheel Size - 15.5-inch frame: 27.5-inch wheels - 17.5—21.5-inch frames: 29-inch wheels
Trek Roscoe 7
$1,099.99
Key features - 27.5+ mid-fat tires provide extra traction and confidence on every trail - All-new lightweight Alpha Gold Aluminum frame delivers a phenomenal ride quality - Shorter chainstays and Boost141 hub spacing for increased agility and clearance for wider tires - Updated geometry and E2 tapered head tube for more confident handling
Trek Fuel EX C Frameset
$2,999.99
Freedom to roam Modern trail geometry, 29? or 27.5? mid-fat options, and 130mm of travel make Fuel EX is the one go-to full suspension trail bike for all riders. Want a rugged, capable long-travel trail bike with the responsiveness of an XC bike? This is it. Fuel EX blends the best of both worlds in one uncompromising package. - Capable and stiff 130mm frame is 29" and 27.5+ compatible - Boost148/110: stronger wheels, more tire clearance, shorter stays - Exclusive suspension tech with ABP, Full Floater, and RE:aktiv - Straight Shot stiffness, Knock Block frame defense
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