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Trek 27.5 Plus Mountain Bikes

What is a Mid-Fat?  27.5 Plus (aka mid-fat) is a tire size relatively new to mountain biking.  A traditional mountain bike tire measures between 2" and 2.6" with wider tires becoming increasingly more popular.  A fat bike tire measures between 3.5" and 5".  Mid-fats were introduced as happy medium option that provides impressive traction without the added weight and friction of a full fat tire.  27.5 Plus is commonly found on entry-level hardtail mountain bikes, adventure bikes, and burly full-suspension trail bikes.

Who is it for?  Mid-fats are an excellent option for aspiring mountain bikers looking for a fun, affordable hardtail that's tough enough to handle techy single-track trails.  One of the most noticeable benefits is the amazing traction that comes with low tire pressure and a wide footprint.  Riders who are more interested pedalling where others are pushing and less concerned with overall speed will want to take a look at 27.5 Plus. 

Want a faster rolling wheels? Check out Trek 29er Mountain Bikes.

Want even more traction for four-season off-road freedom? Check out Trek Fat Bikes.

Want to learn more about Trek mountain bikes? Head back to our Trek Brand Guide.

Trek Roscoe 6
$1,079.99 $1,199.99 10% 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.
Diamondback Catch 1
$1,912.50 $2,550.00 25% Off
"Adventure bikes" are often plodding beasts of burden that sacrifice thrills in the pursuit of extra stability. Well, where's the adventure in that? We went a different route entirely. By adding 2.8-inch-wide, plus-size tires to our Level Link suspension, we've created a bike that absolutely rips on tight trails, but does so with the extra grip and control of a plus-size bike. Voilà—adventure made awesome. We gave the Catch a slack-but-not-too-slack front end. We wanted control on fast descents, but we weren't willing to give up maneuverability on tight trails. A SRAM SX Eagle 12 speed drivetrain gives you the gearing to tackle any terrain, and TRP Slate X2 hydraulic disc brakes bring this machine to a tidy stop. If you're looking to tackle rough terrain and want the ultimate in control without sacrificing the thrill of riding, the Catch is your bike.
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