Specialized Rockhopper 27.5 Bicycle - Red

¥3,343.00 ¥4,751.00

by Specialized

Type: bike-mountain-bike

SKU: 91522-7403

Title

XS S M

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Description
Assembly
Find the Size

Specialized Rockhopper 27.5 bike – Versatile and Reliable MTB for Every Trail

The Specialized Rockhopper 27.5 bike is the perfect mountain bike for those seeking high performance, reliability, and an excellent value for money. Designed to fit every rider perfectly thanks to two wheel diameter options and the Rx Tune fork setup, this bike offers handling and control on every size and type of trail.

Equipped with a 2x8 drivetrain and Radius CX-7 mechanical disc brakes, the Rockhopper is a solid and responsive MTB, ideal for tackling any type of trail.

Main features Specialized Rockhopper 27.5

A1 Premium lightweight alloy frame: strong and light, with internal cable routing and compatibility with dropper post. The lowered standover improves accessibility and handling.
SR Suntour XCE fork with Rx Tune: travel customized by size (80/90/100 mm), for optimized performance in every size.
Radius CX-7 mechanical disc brakes: ensure reliability and stopping power in any condition.
microSHIFT 2x8 drivetrain: smooth shifting with SunRace 11-34t cassette and KMC X8 EPT chain with rust-resistant treatment.
27.5” wheels with Fast Trak Sport 2.35" tires: grip and control on every terrain.
Optimized geometry to offer comfort and responsiveness even on the most technical trails.

Technical Specifications – Specialized Rockhopper 27.5

Frame: Specialized A1 premium butted alloy, zero-stack, internal cable routing, forged 135x9mm dropouts, disc brake mounted on horizontal stay, replaceable derailleur hanger, compatible with dropper post, stealth rack mounts
Fork: SR Suntour XCE 27.5, 28mm stanchions, Rx Tune, coil spring, QR, 80/90/100mm travel (depending on size), 42mm offset
Handlebar stem: 3D forged alloy, 31.8mm, 7° rise
Handlebar: Stout Mini Rise, alloy, 9° backsweep, 15mm rise, 31.8mm
Grips: Specialized MTB Grip, lock-on
Saddle: Bridge Sport, steel rails, 155/143mm
Seatpost: Alloy, 2 bolts, 30.9mm diameter
Seatpost collar: Alloy, quick release, 34.9mm
Front and rear brakes: Radius CX7, mechanical disc, 160mm
Front derailleur: microSHIFT FD-M462, 2v
Rear derailleur: Microshift Mezzo, 8v
Shift levers: microSHIFT TS39-8R, 2x8v
Crankset: Stout 2x, forged alloy
Bottom bracket: Tapered, 73mm, sealed bearings, 122.5mm spindle
Cassette: SunRace 8v, 11-34t
Chain: KMC X8 EPT, rust-resistant, with reusable Missing Link™
Pedals: SBC-54 Flat
Rims: Specialized alloy, disc only, double wall, 25mm internal, 32h
Front hub: Formula, 6-Bolt, 100x9mm QR, 32H
Rear hub: Formula SP-2125, 6-Bolt, 135x9mm QR
Spokes: Stainless steel, 14g
Tires: Fast Trak Sport, 27.5 x 2.35" (front and rear)
Inner tubes: Schrader, 40mm valve

Note Well

Technical specifications may change without notice depending on component availability.
Product images are for illustrative purposes only and may not exactly reflect the described features.

Whether you're just starting out or simply want to have fun on the trails, the Rockhopper 27.5 is the ideal companion for every two-wheeled adventure.

Do you want to receive your bike ready for use? Don't forget to add the bike assembly service at the time of purchase! Discover all the details here: Francesconi bike assembly

A Complete Guide to Bike Sizes

Foreword: Not all bike sizes are the same

Each type of bike has a specific frame and often uses a different size scale. For example, a road bike with a 54cm frame might be considered a medium size by one brand, but a large by another.

Bicycle adjustment margins

Some types of bikes, like gravel bikes, offer a wide range of adjustments, adapting to different body types. Other models, however, have limitations in this regard. This is an important aspect to consider.

How to use size charts

We've created a simple guide to help you find the right bike size:

Check out our size charts for each bike type.
Learn more with specific tips to help you make the right choice.

Size Charts: Find Your Perfect Bike

Gravel and road bikes

Sizes are based on the length of the top tube (in cm), which determines the reach of the bike.

Cut	Recommended height	Horizontal tube length
XS	Up to 157 cm	48-50 cm
S	157-167 cm	50-53 cm
M	168-178 cm	53-56 cm
THE	178-185 cm	56-58 cm
XL	Over 185cm	58-62 cm

For gravel, measurements may vary slightly due to different geometries, but remain similar.

Mountain bike

MTBs are measured in inches, based on the seat tube.

Cut	Recommended height	Size (in inches)
XS	Up to 157 cm	14"-16"
S	157-167 cm	15"-17"
M	168-178 cm	16"-19"
THE	178-185 cm	18"-20"
XL	Over 185cm	20"-23"

Sizes also vary depending on the type of MTB: full-suspension , hardtail or fat bike .

Children's bikes

The size depends on the size of the wheels, often associated with age:

Age	Wheel Size
1-3 years	12"
2-4 years	14"
4-6 years	16"
5-8 years	20"
8-10 years	24"
Over 10 years	26"/27.5"

What to do with half measures?

If you are between two sizes:

Comfort : Choose the larger size.
Performance : Go for the smaller size.

Final tips for choosing

Consult the manufacturer's instructions : Always check the brand's guidelines.
Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
Test the bike : If possible, test the model you intend to purchase.