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    Trek Roscoe vs. Marlin: battle of the badass MTBs

    Tom Owen
    Tom Owen
    Oct 30, 2024 9 min
    Trek Roscoe vs. Marlin: battle of the badass MTBs

    Trek is a big name in both mountain and road bikes. Whether you’re looking for an entry-level hardtail or a full-suspension dream bike for shredding on the trails, Trek has something in its line-up for you.

    While Trek has a large range of mountain bikes to choose from, this guide will focus on the two most accessible hardtail mountain bike model families, the Trek Marlin and the Trek Roscoe. The goal is to help you work out which model family is best for you and your riding style. Whether you’re looking for a bike to use as a mountain bike and a commuter, hoping to get into the sport, or looking to upgrade your current ride.

    If you’re looking for a full-suspension bike that’s capable of handling a little more, then Trek’s Top Fuel or Fuel EX line-ups will be more your style.

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    Trek Roscoe overview: is this the most capable hardtail you’ll ever ride?

    The Trek Roscoe is one of Trek’s newest additions to its mountain bike line-up, having only been introduced in 2018. The Roscoe was designed as a capable trail hardtail that can handle rougher and rockier trails than many other bikes in its class.

    One of the Roscoe’s stand-out features is the oversized 2.6” tires that come on all models, which is what gives it the ability to rollover many obstacles. The Roscoe also has a more aggressive mountain bike geometry, to give you confident handling on more technical sections and for more speed on descents. The Roscoe is a good option for newer mountain bike riders who are looking for a hardtail that will grow with them as their ability progresses, rather than one they’ll rapidly grow out of.

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    Trek Roscoe ride feel: Built for fun

    The Roscoe was made for hardtail mountain bikers who want to take on more advanced trails but who don’t want to upgrade to a full suspension. That’s why the Roscoe has its oversized tires, to make sure that you can roll over obstacles with ease. Many Roscoe models come already set-up tubeless so that you can run a lower tire pressure for added comfort and grip on the trails. The Roscoe also comes with a dropper post to easily get your saddle out of the way on rowdy descents.

    For entry-level riders, the Roscoe is a comfortable bike that will give you more confidence on the trails and that will grow with you as your skills improve. For experienced mountain bikers, the Roscoe is a bike that can meet you where you are and make your rides more fun.

    Pros and cons of the Trek Roscoe

    So, what are the pros and cons of the Trek Roscoe?

    Pros:

    • The oversized 2.6” tires make the Roscoe a comfortable and confident ride, even on rough or rocky terrain.
    • Newer models of the Roscoe come tubeless-ready (or can easily be converted to tubeless), so that you can run a lower tire pressure and worry less about flats.
    • The Roscoe comes with a ready installed dropper in all models for easier climbing and descending.

    Cons:

    • Though the 2.6” tires make trail riding more comfortable, they will slow you down if you intend to do any riding on the road or on really well-packed gravel paths.
    • Higher trim levels of the Roscoe don’t come with rack mounts, something to bear in mind if you’re planning on going on bikepacking adventures that require a little more gear.
    • As a dedicated trail bike, the Roscoe has a slightly more aggressive geometry compared to entry-level mountain bikes, which can be uncomfortable on the roads or over longer flat distances.
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    Trek Marlin overview: the do-everything wonder machine

    The Trek Marlin was introduced to Trek’s mountain bike line-up in 2011 and has undergone several iterations since then. The Marlin was designed as a versatile mountain bike that is capable of taking on the trails as well as helping you out with your shopping or your commute to work.

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    The Marlin’s versatility and its more entry-level price point makes it a solid choice for riders who are looking to try out mountain biking for the first time. This also makes it a good bike for kids who have grown out of children’s bikes and want to get onto their first adult bike. Some models of the Marlin come in sizes as small as an XXS, so your child will be sure to find one that fits. In fact, the Marlin has the largest size range in Trek’s line-up, with the bikes available in sizes up to an XXL.

    Trek Marlin ride feel: helps you do (almost) anything

    The word 'versatile' gets thrown around a lot in regards to bikes, but the Marlin does fit the bill. While it won’t be the fastest bike on the road or on the trail, the Marlin is able to handle both city riding and mountain biking. It can be ridden to work in the morning and then taken out for a rip in the woods on your way home. Most Marlin models have mounts for a rear rack so that you can carry everything you need, whether that’s your work gear or the supplies for an afternoon picnic.

    The Marlin isn’t a shredding machine, but it is a capable trail bike, well-suited to riders who are just getting started on their mountain biking journey. Higher level models of the Marlin have an air shock on the front for better and more responsive suspension while out on the trails, that can be locked out for your errands around town.

    Pros and cons of the Trek Marlin

    So what are the pros and cons of the Trek Marlin?

    Pros:

    • With mounts for fenders and a rear rack, the Marlin is ready to become your daily commuter, as well as taking on the trails on the weekend.
    • The Marlin line-up, especially the entry level models, are well-suited to new mountain bikers and children who are just getting onto their first adult bike.
    • If you generally struggle to find a bike in your size, the Marlin comes in Trek’s largest range of sizes, from XS to XXL, with a M/L size in the middle for the best sizing possible.

    Cons:

    • For riders looking to take on rougher or rockier trails, the Marlin’s 2.4” tires can be a limiting factor.
    • With 120mm of travel, the Marlin makes for a good beginner bike but can be outgrown quickly as you get more confident in the sport.
    • The Marlin models come without a dropper post, so if having a dropper is on your wish list, bear in mind that is something you will have to install yourself.
    Shop Trek Marlin

    Trek Marlin vs Roscoe: the key differences

    Now that we’ve covered the basics of each model family, what are the main differences between the two?

    In Trek’s mountain bike line-up, the Roscoe is often regarded as the next step up from the Marlin. The Marlin is designed as an entry-point into mountain biking, while still being versatile enough to ride around town or kit out for the daily commute. With its 2.4” tires and 120mm of front suspension travel, the Malin provides a good introduction to mountain biking. However, if you’re planning to take your mountain biking to the next level, over the next few years you may find yourself looking at trails that you’d prefer to have a little more bike for.

    As the next step up in Trek’s line-up, the Roscoe is designed to be a capable trail bike that can take on more. The Roscoe comes with up to 140mm of front suspension and a wide 2.6” tire, for more comfort and confidence while you’re shredding the trails. All Roscoe models also come with a dropper post for those more intense climbs.

    Trek Roscoe vs Marlin: comparison chart

    See the chart below for a simple guide to the main differences between the two model families. As there are several generations and trim variations available for each model family, this will serve as a general guide to both model families, to help you decide which one would be your next ideal riding companion.


    Roscoe

    Marlin

    Suspension travel

    120mm to 140mm on certain models

    120mm

    Fork type

    Air and coil models available

    Air and coil models available

    Tire clearance

    Up to 2.6”

    Up to 2.4”

    Dropper post? 

    Yes 

    On certain models – most Marlin models have routing to install a dropper

    Rack and fender mounts?

    On certain models

    Yes

    Sizing

    S through XL, on most models

    XS through XXL, with XXS available on some models

    A detailed look: Trek Roscoe 7 vs Marlin 7

    Lets take a closer look at the specific differences between two of the models; the Marlin 7 and the Roscoe 7. The 7 in each model name denotes what drivetrain you’ll be getting, in this case both bikes have Shimano Deore. The Roscoe 7 has a 12-speed Deore drivetrain, while the Marlin 7 runs 10-speed Deore. Both bikes come tubeless-ready for more traction on the trails. The Roscoe 7 has more front suspension travel, 140mm to the Marlin 7’s 120mm and the Roscoe’s fork is an air shock, compared to the Marlin’s coil spring.

    A third contender: Trek Marlin vs Roscoe vs X-Caliber

    The Marlin and the Roscoe aren’t Trek’s only hardtail mountain bikes. The third contender in Trek’s line-up is the X-Caliber, a speedy and lightweight cross-country mountain bike. The X-Caliber sits just above the Roscoe, with a lighter weight frame and aggressive geometry perfect for new racers and riders who like to go fast.

    What sort of rider suits the Trek Marlin or Roscoe?  

    Still not sure which bike will be right for you?

    Choosing a bike will always come down to what is most important for you. Is your goal to have a bike that can do a little bit of everything, from carrying groceries to a weekend rip on the trails? Then the Marlin family will be more what you’re looking for. The Marlin can be equipped with a rack to carry everything you need, or a dropper post for taking on more advanced trails.

    If your main focus is on mountain biking and being able to handle whatever the trail throws at you, then the Roscoe will be more your thing. As a dedicated trail bike, the Roscoe won’t carry your groceries, but it will be able to tackle rooty and rocky trails with ease.

    Browse bikes for sale

    Now that you have a better idea of which bike would be best as your next companion on the trails, be sure to check out our selection of pre-owned Trek mountain bikes on Buycycle. You’ll be able to find both the Roscoe and Marlin model families for reasonable prices.

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