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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.
$479.99
$499.99
4% Off
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
$499.99
$599.99
17% 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
$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
$699.99
Got Blocks!? The 26" Blocks Flyer is the bike to have if you want to raise it up with the crew and catch some blocks. This year's frame has been improved with an internal headset and mid bottom bracket. The new 26" x 2.4" Bozack tires ride great and provide super traction for those swerves. If you want to be about that #SEBIKESLIFE, you need to be riding the Blocks Flyer.
- Lightweight 6061 aluminum floval tubing frame with internal headset, mid bottom bracket, and SE Wave dropouts
- Double-wall rims with sealed bearing rear hub
- New SE Bozack 26" x 2.4" Tires
- Blocks Flyer seat with grippy top cover
- SE Bikes Life grips with rubber end plugs
- Retro top-load stem with hidden top cap for a clean look
- 3-piece tubular cranks with custom SE Racing sprocket
- SE nylon fiber pedals
- SE Wheelie pegs, and alloy valve caps included
- 30.6 pounds
$699.99 - $739.99
$739.99
Up to 5% Off
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
$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
$899.99
$1,199.99
25% Off
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.
$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
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.
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