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369.99 €

Rock Machine Thunder Jr. 20 VB children's bike Jade Blue

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Our Code: 803.2026.20002
Discount 14%

Children's bike, 20" wheels, 10" aluminum frame size, 1x7 microSHIFT gears, Tektro rim brakes, Selle Royal saddle.

Detailed Description
Rock Machine

Rock Machine follows the rule: Fun first, and then more fun. From humble garage beginnings in 1994 to the present, you can see Rock Machine bikes on World Cup tracks, but mainly on trails where Rock…

More about the brand Rock Machine
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Discount 14%

Children's bike, 20" wheels, 10" aluminum frame size, 1x7 microSHIFT gears, Tektro rim brakes, Selle Royal saddle.

Detailed Description
In stock
An expedition is possible today (delivery options)
Price Including VAT 369.99 € Recommended Retail Price: 431.69 € -14% Reference Price: 386.99 € -4%
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Description

Rock Machine Thunder Jr. 20 - a lightweight children's bike for their first cycling adventures!

The Thunder Jr. 20 is the ideal choice for young bikers looking to explore bike paths and easy trails. With its lightweight aluminum frame and special Junior Trail geometry, it offers a comfortable and easily maneuverable ride, helping kids develop the right habits for off-road cycling.

The simple 1×7 gearing allows for smooth and intuitive control, so young cyclists can fully focus on riding and enjoy every trail.

The perfect companion for carefree outings and their first trail experiences!

EAN: 8592842211482

Size chart

Children's Bikes

size models height (cm)
20" Blizz 20 / Riff Tr 20 / Thunder 20 / Riff Jr 20 / Catt Jr 20
110 - 130
24" Blizz 24 / Riff Tr 24 / Thunder 24 / Riff Jr 24 / Catt Jr 24
120 - 145
27" XS Thunder 27 / Riff Jr 27 / Catt Jr 27 / Blizz 27 / Riff Tr 27 size XS
135 - 155
27" S Thunder 27 / Riff Jr 27 / Catt Jr 27 / Blizz 27 / Riff Tr 27 size S 140 - 160
29" XS Thunder 29 size XS 140 - 160
29" S Thunder 29 size S 145 - 165

Manufacturer: BIKE FUN International s.r.o., Areál Tatry 1445/2, 74221 Kopřivnice, info@bikefunint.com, www.rockmachinebikes.com/en-en

Specifications

Frame Set
Frame

heat-treated aluminum alloy 6061-T6, junior trail geometry

Headset

CH290TBW, 1-1/8

Wheels
Tires

Schwalbe, Black Jack, Kevlarguard, 20x1.90

Rims

Stars J19SD, 20 holes

Hubs

One1 KTA55F, 20 holes, M9×100 mm, quick-release / One1 KTAZ2R, 20 holes, M10×130 mm, quick-release

Spokes

Sapim Galvanized Black

Drivetrain
Shifters

microSHIFT DS45-7R, 7 spd

Rear Derailleur

microSHIFT RD-M21SS

Crankset

Wheel Top SXB4BL-MS, 28 teeth

Cassette

Shimano CS-HG200-7, 12–28 teeth

Bottom Bracket

Thun Ibex 120 mm, BSA, shell 68 mm

Pedals

Marwi, SP202, with ball bearings

Components
Handlebars

One1 Alloy, MTB AL-153BT, 10° backsweep, rise 30 mm, width 560 mm, ø 25.4 mm

Stem

One1 MAS-MD60368 Alloy, ø 25.4 mm, 15°

Grips

VELO

Brakes

rim Tektro J310

Saddle

Selle Royal Junior

Seatpost

One1 Alloy, ø 27.2 mm

General Information
Frame Material

Aluminum Alloy

Colour

Blue

Activity

Mountain Biking, Cycling With the Kids

The wheel manufacturer reserves the right to change the wheel specifications without any reason. In exceptional cases, the delivered product may differ from the specified specifications and images to improve the availability or functionality of the wheel.

Rock Machine

Rock Machine follows the rule: Fun first, and then more fun. From humble garage beginnings in 1994 to the present, you can see Rock Machine bikes on World Cup tracks, but mainly on trails where Rock…

More about the brand Rock Machine

Do you need help choosing the right product?
Contact us.

Ask a question
+43 144 20070 Mon - Fri: 10:00 am to 15:00 pm
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Für Versand nach Deutschland, besuchen Sie bitte Rock Machine Thunder Jr. 20 VB Kinderfahrrad Jade Blue

Für Versand nach Österreich, besuchen Sie bitte Rock Machine Thunder Jr. 20 VB Kinderfahrrad Jade Blue

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