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Mountain

Choose from our selection of full suspension, enduro, all-mountain, XC, and trail mountain bikes from Trek and SE Bikes. Conquer any trail, from tame to treacherous with these sure-footed off-road bikes.

 

$499.99
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 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, a reliable 21-speed Shimano drivetrain, 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, 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, and more. 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 and fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter
$529.99 $599.99 12% Off
The Flightline Two 27.5 features Haro's newly-redesigned X6 series alloy frame with internal cable routing & post disc-mount, and a Suntour XCE-28 SR fork. Its 24-speed drive train provides versatility in a variety of terrain while its mechanical disc brakes provides confidence and sure-footed stopping power in all-weather conditions. Its 27.5" wheel set provides a happy medium between the 26" and 29" wheel sizes, combining maneuverability and fast rolling speed. Built with alloy double-wall rims for strength, rust-free stainless steel spokes, 32-hole alloy hubs and 27.5" x 2.2" multi surface tires, The FL Two 27.5" wheel set is at the heart of this model's performance. FEATURES - New FL Two X6 Series frame w/ IS disc mount - Suntour XCE-28 fork w/ 100mm travel, post mount - Samox Aluminum 42/34/24T crankset - Shimano Tourney TX-800 rear derailleur - New Shimano ST-EF500 3x8-spd shifters - New Shimano HG200 8-spd 12-32T cassette - MX-21 27.5" aluminum DW rims, 27m wide - Jak-7 mechanical disc brakeset w/ 160mm rotors
$529.99 $599.99 12% Off
The Flightline Two 29 features Haro's newly-redesigned X6 series alloy frame with internal cable routing & post disc-mount, and a Suntour XCE-28 fork. Its 24-speed drive train provides versatility in a variety of terrain while its mechanical disc brakes provides confidence and sure-footed stopping power in all-weather conditions. Its 29" wheels are fast rolling and glide over rocks and roots effortlessly, which gives the FL Two 29 its unique riding personality. Built with alloy double-wall rims for strength, rust-free stainless steel spokes, 32-hole alloy hubs and 29" x 2.2" multi-surface tires, The FL Two 29" wheelset is at the heart of this model's performance. FEATURES - New FL Two X6 Series frame w/ post mount - Suntour XCE-28 fork w/ 100mm travel, post mount - Samox Aluminum 42/34/24T crankset - Shimano Tourney TX-800 rear derailleur - New Shimano ST-EF500 3x8-spd shifters - New Shimano HG200 8-spd 12-32T cassette - MX-21 29" Aluminum rims, 27mm wide - Jak-7 mechanical disc brakeset w/ 160mm rotors
$529.99 $629.99 16% Off
Marlin 4 is the perfect gateway to trail riding. It's ideal for new riders who want a mountain bike with knobby tires that can double as a rugged commuter. Disc brakes, front suspension, 21 speeds, and mounts for a rack and fenders make this a great bike for new trail riders and campus commuters alike. It's right for you if... You want an introductory mountain bike at an incredible price but also want a commuter that's rugged enough to hop curbs on the way to class. The tech you get A lightweight aluminum frame with internal 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 mechanical disc brakes, and a suspension fork that takes the edge off bumps and rough terrain. The final word Marlin is made for any adventure. The rack and fender mounts make it a great choice for commuters who want to get a little rad on the way to class or the grocery store. 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 - Rack and fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - 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 - Like every model in the Marlin family, it's backed by Trek's lifetime warranty Wheel size: - Sizes X-Small – Small: 27.5-inch - Sizes Medium – XX-Large: 29-inch
$579.99
Marlin 4 is the gateway mountain bike that will take you from rail trails to singletrack. It's ideal for riders who want a mountain bike with knobby tires that can double as a rugged commuter. Disc brakes, front suspension, Shimano 14-speed shifting, and mounts for a rack and fenders make this a great bike for trail riders and campus commuters alike. IT'S RIGHT FOR YOU IF… You want an introductory mountain bike at an incredible price, but also want a commuter that's rugged enough to hop curbs on the way to class. THE TECH YOU GET A lightweight aluminum frame with internal routing to protect your cables and add to the bike's sleek look, trustworthy 14-speed Shimano shifting with a wide range of gearing so you always have the right gear for your terrain, powerful mechanical disc brakes, and a suspension fork that takes the edge off bumps and rough terrain. THE FINAL WORD Marlin is made for any adventure. The rack and fender mounts make it a great choice for commuters who want to get a little rad on the way to class or the grocery store. WHY YOU'LL LOVE IT - Marlin Gen 2 is ready to roll with easy to use features that help you get the best bang for your buck - Rack and fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - 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 - Like every model in the Marlin family, it's backed by Trek's lifetime warranty Wheel size: - Sizes X-Small – Small: 27.5-inch - Sizes Medium – X-Large: 29-inch
$599.99 $739.99 19% Off
Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. A suspension fork, 2x8 drivetrain, 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 routing to protect your cables and add to the bike's sleek look, 2x8 drivetrain, a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes, and a terrain-smoothing suspension fork with a lockout. The final word Marlin 5 is 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 (XXS, 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 XXS through 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 Wheel size: - Size XX-Small: 26-inch - Sizes X-Small – Small: 27.5-inch - Sizes Medium – XX-Large: 29-inch
$699.99 - $849.99 $849.99 Up to 18% Off
Marlin 6 is a cross country mountain bike built to give you an efficient off-road ride with a suspension fork that locks out, and a simple 1x drivetrain. It's made for mountain biking, but it's also equipped with features like rack and kickstand mounts that make it a great choice for adventurous daily commutes. 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 A lightweight aluminum frame with internal routing to protect your cables and add to the bike's sleek look, powerful hydraulic disc brakes, and a simple 1x10 Shimano drivetrain that ditches the front derailleur for less clutter and easier operation. The wide-range cassette still gives you all the gears you need for big climbs and steep descents. Plus, a suspension fork with a lever that lets you easily lock the suspension so you don't waste energy on smooth terrain. The final word Marlin 6 gives you upgrades you'll notice on every ride, like the smooth, simple shifting Shimano drivetrain. Extra-strong, double-walled rims and powerful hydraulic disc brakes give you durability and stopping power for your most rugged adventures on the trail, in town, and everywhere in between. Why you'll love it - The 1x drivetrain gives you all the gears you need and none you don't - Smaller frame sizes (XXS, 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 XXS through 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
$739.99
Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. It features a trail-savvy frame with a suspension fork, 9-speed Shimano CUES shifting, and mounts for a rack and kickstand that make it an ideal choice for 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 routing to protect your cables and add to the bike's sleek look, an upgraded 9-speed Shimano CUES drivetrain, a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes, and a terrain-smoothing suspension fork with a lockout. The final word - Marlin 5 is a great ride for all your adventures. It's also versatile and 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 - Marlin Gen 3 gives you serious trail capability, with big tire clearance and slack, confidence-boosting geometry that keeps you stable from singletrack to city - Rack and fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - Its ThruSkew system is safer, simpler, and stronger, plus it makes removing the rear wheel easy for flat fixes in a pinch - Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending - Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount
$749.99
Need a bike that’s ready to rip in The Town? We’ve got you covered with the new Oakland Flyer, part of the new SE NorCal series! This bike’s design is a nod to Oaktown’s rich history and diverse culture, with a frame as sturdy as the city’s mighty oaks and as bold as its street art. The Oakland Flyer thrives on the city's streets, from the lively buzz of Jack London Square to the panoramic views atop the Oakland Hills. This bike isn't just a ride; it's a tribute to Oakland's legacy of strength, community, and creativity. And don’t forget to check out the other bikes in the NorCal Series (San Jose, Stockton, Sacramento, and San Francisco). Only 150 of each city’s bikes were made, so move quick before you’re hella late.
$749.99
Meet the all-new San Jose Flyer, part of the SE limited-edition NorCal Series. This bike’s sleek design is perfect for Silicon Valley's cutting-edge vibe, the bustling downtown, and the trails of Almaden Quicksilver County Park. The San Jose Flyer embodies the city's blend of tradition and transformation, inviting you to explore San Jose's vibrant streets and beyond. There are only 150 of these bikes being made, so score one to fully represent Fin City! Better yet, get the full NorCal series in your garage (San Jose, San Francisco, Sacramento, Oakland, and Stockton) to fully show your NorCal pride
$949.99
Marlin 6 is the perfect ride for progressing your skills on the trails. Its updated slacker frame geometry makes it easier to control on descents while the upgraded suspension fork takes the edge off bumpy trails. Integrated rack and kickstand mounts make it easy to add accessories to this versatile steed. It's right for you if... You want a trail bike that's dialed for building confidence on the dirt, and versatile enough for commuting to work or school. The tech you get A lightweight aluminum frame with modern trail riding geometry and internal routing that keeps cables protected and keep the bike looking sleek. A 100mm RockShox Judy front suspension fork that cushions rocks, roots, and bumps in the trail, 10-speed fuss-free Shimano CUES shifting, and the serious stopping power of hydraulic disc brakes. The final word Marlin 6 is an ideal trail bike for riders who want to progress on the dirt and want a bike that can keep them rolling off of the trail, too. Why you'll love it - Marlin Gen 3 gives you serious trail capability, with big tire clearance and slack, confidence-boosting geometry that keeps you stable from singletrack to city - Its RockShox fork gives you 100mm of suspension for turning rocks and roots in the trail into smooth-sailing - Rack and fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending - Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount Features: Will my bike have a curved top tube? Smaller frames have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frame sizes have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height. Fit for every rider Marlin comes in seven frame sizes to suit riders of any height, and Smart Wheel Size ensures you’re on the fastest wheel that fits. The smallest sizes even come with short-reach brake levers and narrower handlebars that give smaller riders better comfort and control. High-tech, high-value Marlin looks and feels great. It’s packed with features usually found only on more expensive bikes, like a stylish frame with internal shift cable and brake hose routing, which can help your cables last longer by protecting them from the elements. Shimano CUES Inspired by rider demand for trouble-free drivetrain longevity and performance, Shimano CUES offers a new foundation for versatility and durability across a range of both electric and standard bikes. CUES features Shimano’s new LINKGLIDE drivetrain technology for significantly increased life on wear items like chains, cassettes, and chainrings. Shimano LINKGLIDE LINKGLIDE technology has been specifically engineered for incredible durability while still delivering smooth and decisive shifting – along with a great pedaling experience. Available exclusively on Shimano CUES drivetrains. Upgrade your pedals and love your bike more Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility. Wheel size: - Size XX-Small: 26-inch - Sizes X-Small – Small: 27.5-inch - Sizes Medium – XX-Large: 29-inch
$999.99
Now this is one KILLER ride! The all-new 27.5” Killer Quad is perfection on wheels. This bike has everything you’d want and more. It is built around a unique Quad frame design featuring an oversized downtube, integrated headset, super stiff BB yoke, and a legendary looptail rear end. It comes equipped with a microSHIFT XLE 1x10 drivetrain, Tektro hydraulic disc brakes, and wide 27.5” x 2.5” Vee Speedster tires. When you want to go for a killer ride, this is definitely the bike to have.
$999.99
The 29”+ Monster Ripper is the biggest PK Ripper style of bike that we’ve ever built! The monster-sized PK frame design features oversized tubing, integrated head tube, the classic PK Ripper gusset, and a legendary looptail rear end built around monstrous 29” x 2.8” Vee Speedster tires. For extra stopping power, this bike comes equipped with Tektro hydraulic disc brakes. If you want to ride the biggest & baddest PK Ripper on the planet, look no further than the Monster Ripper.
$1,199.99
Roscoe 6 is the ideal gateway to mountain biking for new riders looking to have a fun time on the trail. It has plus-sized tires that inspire confidence by keeping you stable, a suspension fork that soaks up the big bumps and roots, an easy-to-use 1x drivetrain, and playful frame geometry that makes it easier to control your bike on technical trails and winding singletrack. It's right for you if... - You know there are good times to be had on the trail, and you want to be part of them! You're looking for an easy entry to the sport of mountain biking on a bike that will keep you excited and motivated to get out there day after day. The tech you get - A strong aluminum frame, confidence-inspiring 27.5+ wheels with wide, grippy tires, and an SR Suntour fork with 120mm of travel. It has a trail-tough Shimano drivetrain with 10 speeds and a wide range of gears for climbing, hydraulic disc brakes, and a dropper post for extra room on rough trails. The final word - Roscoe 6 is like the friend who takes you mountain biking for the first time and never gets frustrated while they're teaching you how to ride. It's all about getting out there, having fun, and enjoying the great sport of trail riding! Why you'll love it - It's more fun to be a better rider: Roscoe is so stable and forgiving, it's like an instant ability upgrade - Even when the trail gets rough, the wide 27.5+ tires deliver more confidence, traction, and stability - The dropper post lets you lower your saddle on the fly so it's out of the way on descents - It has rack mounts so you can use it for bikepacking or even running errands Features: Built for fun - Roscoe is a confidence-inspiring trail hardtail with stable handling, robust parts, and a longer-travel fork that gives you more control over bigger hits. Built to party with 1x drivetrains and dropper posts, these models are perfect for anyone who values fun over fast. High tech frame - The Alpha Gold Aluminum frame is packed with features that make your ride better. A tapered head tube gives you more precise, confident handling on the front end, while Boost 141 rear hub spacing gives you shorter chainstays for more nimble handling out back. 27.5 Plus traction - Better traction gives you more confidence. Roscoe's extra-wide 27.5 Plus tires give you more grip and overall stability so you can roll over anything with confidence.
$1,899.99
Roscoe 7 is a hardtail for riders who wanna have a blast ripping up the trail. A plush 140mm suspension fork, 29er wheels, and a wide-range drivetrain with plenty of gears make this bike great for new riders yet playful enough to make even the most experienced shredders smile. It's right for you if... You're new to the trail and want a fun and accessible hardtail that keeps you confident and in control when the trail gets rough. Or, you're a more experienced trail rider and you want a hardtail that knows how to party when you're out riding with friends. The tech you get A lightweight aluminum frame, fast-rolling 29er wheels, wide and grippy 2.6" tires, and a 140mm RockShox Recon fork with a lockout. It's equipped with a reliable Shimano 1x12 drivetrain with a wide range of gears for climbing, powerful hydraulic disc brakes, and a dropper post for room to get low on descents, corners, and jumps. The final word When you're riding Roscoe 7, it doesn't matter if you're a first-timer or an off-road pro—whatever your skill level, you're gonna have fun. It's built for ease of use and durability, so you can focus on enjoying the trail ahead. Why you'll love it - 29er wheels and wide 2.6" tires make for a grippy, confident, and fast-rolling ride - The dropper post lets you lower your saddle on the fly so it's out of the way on descents - The RockShox fork's Solo Air spring can easily be adjusted for a specific rider weight, and it's lighter than a coil spring - The fork’s lockout feature lets you temporarily lock the suspension for better efficiency on flat stretches Wheel size: - Sizes X-Small – Small: 27.5-inch - Sizes Medium – X-Large: 29-inch
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