Specialized Rockhopper Sport Bicycle
The Specialized Rockhopper Sport is the perfect companion for those seeking off-road adventures without compromises, but with an eye on the budget. With a lightweight A1 Premium alloy frame, Tektro hydraulic disc brakes, SR SunTour XCM suspension fork, and a Shimano single chainring drivetrain, this bike is designed to deliver reliable performance and an exciting riding experience on all types of terrain.
Technical specifications
Chassis
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Material: Specialized A1 Premium Alloy.
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Features: Internal cable routing, disc brake mount on the horizontal fork, compatibility with hidden racks and telescopic seat posts.
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Seat collar: Quick release alloy, 34.9 mm.
Suspensions
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Fork: SR Suntour XCM, 30 mm stanchions, Rx Tune, coil spring, QR, travel 90/100 mm (size specific), offset 42 mm.
Brakes
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Front: Tektro HD-M275, hydraulic disc brake, 180/160 mm rotor.
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Rear: Tektro HD-M275, hydraulic disc brake, 160 mm rotor.
Transmission
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Rear Derailleur: Shimano RD-U4000, CUES, Shadow Design, 9 speeds.
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Commands: Shimano SL-U4000-9R, CUES Rapidfire Plus, 9 speeds, with optical display.
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Freewheel: Shimano CS-LG300-9, 9 speed, 11-41T.
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Chain: Shimano CN-LG500 with Quick-Link, anti-corrosion coating.
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Crankset: Stout 1x, forged alloy.
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Central Movement: 73 mm, internal bearings, axle 122.5 mm.
Wheels
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Wheels: Specialized Alloy, double wall, hookless, 25 mm internal width, 32 holes.
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Front Hub: Formula 6-Bolt, 100x9 mm, quick-release, 32 holes.
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Rear Hub: Formula SP-2125, 6-Bolt, freehub, 135x9 mm, quick-release.
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Raggi: Stainless steel, 14 g.
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Tires: FAST TRAK SPORT, 26/650B/29x2.35.
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Inner tubes: Standard 40 mm SV, 26/650B/29x1.75-2.4.
Cockpit
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Handlebar: Alloy Mini Rise, backsweep 9°, rise 15 mm, width 31.8 mm.
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Grips: Specialized Trail Grips, with lock-on system.
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Handlebar Attack: Forged 3D alloy, rise 7°.
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Sella: Bridge Sport with steel rails, 155/143 mm.
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Seat post: 2-bolt clamp, diameter 30.9 mm.
Accessories
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Pedals: Specialized Body Geometry Fitness, plastic platform.
Please note
Technical specifications may change without notice based on component availability.
The product images are purely indicative and may not exactly reflect the described features.
The Rockhopper Sport combines robustness, versatility, and performance at an affordable price, making it the ideal choice for those looking for a reliable bike to tackle off-road trails. Perfect for beginners and enthusiasts, this mountain bike accompanies you everywhere with style, comfort, and safety.
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:
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Comfort : Choose the larger size.
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Performance : Go for the smaller size.
Final tips for choosing
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Consult the manufacturer's instructions : Always check the brand's guidelines.
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Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
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Test the bike : If possible, test the model you intend to purchase.
