Specialized Riprock 20" – The Perfect MTB for Young Riders
Maximum Trust, Maximum Fun
With the Specialized Riprock 20", kids can explore without fear and without limits! This mountain bike for young riders is designed with the same advanced technologies as adult bikes, offering modern geometry, hydraulic disc brakes, internal cable routing, and Ground Control tires for maximum grip.
The transmission with a wide range of gears allows for easy climbing and safe descending. Every detail, from the short crank arms to the reduced Q-factor, is designed to ensure comfort, stability, and an optimal position in the saddle.
If you're looking for a bike that inspires confidence and a desire to ride, the Riprock 20" is the right choice!
Main features
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Geometry Kids-Specific for Comfort and Control: Bridge saddle with 130mm and reduced Q-factor for a more natural position. Short cranks to improve alignment between hip, knee, and foot. Smaller diameter grips and ergonomic frame for more intuitive riding.
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Lightweight and Sturdy Aluminum Frame: Specialized A1 Premium Butted Alloy, designed to withstand any adventure. Internal cable routing for a clean look and extra protection. Compatible with 30.9mm dropper seatposts for future customizations.
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Hydraulic Disc Brakes for Maximum Safety: Promax DSK-926 with 160mm discs for powerful and modulated braking.
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8V Transmission for Every Type of Route: microSHIFT Super Short 8-Speed Shift with clutch for precise and silent shifts. 11-38T cassette to tackle climbs and descents with ease.
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Ground Control Wheels and Tires for Optimal Grip: 20x2.35" tires, perfect for trails, dirt, and asphalt. Boost hubs of 15x110mm and 12x148mm for greater stability.
Technical specifications
Frame and Fork
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Frame: A1 Premium Butted Alloy, unisex, internal cable routing, 148mm thru-axle, compatible with dropper seatposts.
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Saddle collar: A bolt, 34.9mm
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Fork: A1 Premium Butted Alloy, alloy steering, 15x110mm thru axle, with mini fender.
Brakes
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Front: Promax DSK-926, hydraulic disc brake, 160mm rotor, adjustable lever.
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Rear: Promax DSK-926, hydraulic disc brake, 160mm rotor, adjustable lever.
Transmission
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Commands: microSHIFT Acolyte Quick Trigger SL-M6280, 8 speeds, short levers for easy use.
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Rear derailleur: microSHIFT Super Short RD-M5185S, 8 speeds, with clutch.
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Cassette: microSHIFT CS-H083, 11-38T, 8 speeds.
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Chain: KMC X8 with Missing Link™.
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Crankset: Forged alloy, 115mm, narrow Q-factor, with chain protection.
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Gears: 30T.
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Central Movement: Square cartridge, 68mm.
Wheels and Tires
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Wheels: Alloy, 16mm depth, 25mm internal width, 28 spokes.
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Front hub: Alloy, 6 bolts, 28H, 15x110 Boost.
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Rear hub: Alloy, 6 bolts, 28H, 12x148 Boost, compatible with 11 speeds.
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Front tire: Ground Control Sport, 20x2.35".
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Rear tire: Ground Control Sport, 20x2.35".
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Inner tubes: Schrader valve.
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Rays: Stainless steel, 14g.
Cockpit and Control
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Handlebar attack: Stout 3D forged alloy, 31.8mm, rise 6°.
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Handlebar: Mini Rise, double thickness alloy, 600mm width, 6° backsweep, 31.8mm diameter.
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Grips: Specialized Trail Grips, 19mm diameter, lock-on.
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Sella: Kids Bridge Saddle, 130mm.
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Seatpost: Specialized, 6061 alloy, 30.9mm, 2-bolt clamp, 0mm setback.
Accessories and Extra Components
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Pedals: Nylon platform with integrated reflectors.
Weight and Dimensions
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Weight: 9.79 kg (21 lb, 9.3 oz).
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Size: One size.
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.
Give your child the freedom to explore with the Specialized Riprock 20"!
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.
