Cycling
Winter
Running
Hiking
Did you find a better price?
If possible, we will give you an even better one. Don't hesitate to write to us.
Ask for a better price
Children's mountain bike 20", lightweight aluminum frame, rigid fork, Tektro disc brakes, 1x7 gearing, for children aged 6-10 years, weight 9.85 kg.
Detailed Description
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 MachineChildren's mountain bike 20", lightweight aluminum frame, rigid fork, Tektro disc brakes, 1x7 gearing, for children aged 6-10 years, weight 9.85 kg.
Detailed DescriptionDo you have a VAT number? Shop without VAT.
Some parts of this page are translated automatically, so please excuse any imperfections.
Junior round Rock Machine Riff TR 20 is an excellent entry into the world of trail riding for young cyclists who no longer want to ride just on the sidewalk but are drawn to gravel, forest paths, and the first light off-road challenges.
The foundation is a durable aluminum frame made of 6061-T6 material, which offers the ideal balance of low weight and strength.
Thanks to this, the bike is easy to handle while also enduring less gentle handling that simply comes with children's riding.
The drive is based on a 7-speed microSHIFT system, which is simple to operate and reliable in use.
With it, children can easily adjust the gear for uphill riding, flat terrain, or gentle descents without being unnecessarily confused by shifting. The entire system is designed to be durable and low-maintenance, which is appreciated by both the young rider and the parents.
Secure stopping is handled by Tektro MDM 280 rim brakes, which have a smooth onset of braking power and are easy to modulate even with a smaller child's hand.
Furthermore, they are structurally simple, lightweight, and easily serviceable. This gives the child confidence when riding in the city and exploring the terrain.
The bike's geometry is adapted to children's proportions, offering a stable, natural riding position and good control over the bike.
Wider tires help with traction on unpaved surfaces and increase confidence when riding on gravel or forest paths.
EAN: 8592842219617
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
Aluminum 6061-T6, heat-treated
Alloy Custom Tubing
Rubena Cheetah 20 × 2.10
Stars J19SD, 24 holes
One1 KTTD8F, M9 × 100 mm, quick release; One1 KTTD2R, M10 × 135 mm, quick release
Sapim Galvanized Black
microSHIFT DS45-7R (right)
microSHIFT RD-M21SS
Wheel Top SXB4BL-MS
Shimano CS-HG200-7 (12–28 teeth)
KMC Z8.3
VP Components 229, platform
One1 Alloy MTB AL-153BT
One1 MAS-MD60368 Alloy
VELO
Tektro MDM 280
Selle Royal Junior
One1 Alloy; 27.2 mm
Aluminum Alloy
Blue
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 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 MachineDo you need help choosing the right product?
Contact us.
Ask a question
Rock Machine Thunder 20 red/black SAMPLE
Children’s 20" bike, aluminum frame, rigid fork, 1x7 speeds, V-brake brakes, weight 8.2 kg, for a rider height of 110–130 cm.
Buy
AMULET 20 Fun kids bike strong blue/silver
A kids’ 20" bike with an aluminum frame for recreational riding; weight 8.3 kg and Shimano Tourney 1x7 gearing for easy operation.
Buy
AMULET 20 Fun children's bike metallic red/silver
Children’s 20" bike with an aluminum frame, for ages 4–7, weight 8.3 kg, Shimano Tourney 1x7 derailleur and V-brakes.
Buy
AMULET 20 Fun kids bike celeste blue/purple
A children’s 20" bike with an aluminum frame for cycling, weighing 8.3 kg, and a 7-speed Shimano Tourney derailleur.
Buy
Rock Machine Catherine Jr. 20 children's bike Coral
Girls' bike 20", aluminum frame, rigid fork, fitted with Shimano RevoShift 1x6 sp., rim brakes, tires 20×1.95".
Buy
Rock Machine Thunder 20 Gloss Dark Red/Black/White children's bike
Children's 20" bike, aluminum frame, rigid fork, 1x7 speeds, V-brake, lightweight.
Buy
AMULET 20 Tomcat kids bike strong blue/silver
Children’s 20" bike for riding with children, for a height of 105–120 cm, weight 7.9 kg, 7-speed Shimano Altus rear derailleur.
Buy
AMULET 20 Tomcat kids bike raspberry pearl/silver
A children’s 20" bike for riding on trips, for kids from around 6 years old, with an aluminum frame and a weight of 7.9 kg, Shimano 1x7 gearing.
Buy
AMULET 20 Tomcat kids bike celeste blue/purple
Kids’ 20" bike with an aluminum frame, for schoolchildren on trips, weight 7.9 kg and 7-speed Shimano Altus shifting.
Buy
Rock Machine Thunder Jr. 20 VB children's bike Jade Blue
Children's bike, 20" wheels, 10" aluminum frame size, 1x7 microSHIFT gears, Tektro rim brakes, Selle Royal saddle.
Buy
CANULL Air 20 children's bike red
Canull Air 20 children's bike with an aluminum frame, Shimano 1x7 gears, weight 8.6 kg, suitable for heights from 125 cm
Buy
Rock Machine RIFF Jr 20 kids bike Gloss Fire Red
Children's mountain bike 20" wheels, aluminum frame, rigid fork, Microshift 1x7 gearing, Tektro rim brakes, for children with a height of 105 - 125 cm,…
Buy
Rock Machine RIFF Jr 20 kids bike Matte Deep Ocean Blue
Children's bike with aluminum frame, rigid fork, 20" wheels, MicroShift 1x7 gears, rim brakes, child's height 110-135 cm.
Buy
Rock Machine RIFF Jr 20 children's bike Gloss Limerock Grey
Children's bike with an aluminum frame, rigid fork, 20" wheels, MicroShift 1x7 gears, rim brakes, child height 110-135 cm.
Buy
Fíha 20 Rockeeon kids' bike red
The 20" Rockeeon children's bike features a lightweight frame, child-specific geometry, aluminum fork, Tektro brakes, Microshift 1x8-speed shifters, suitable…
Buy
Fíha 20 CoralBubble children's bicycle Blue
Children's bike 20" CoralBubble with a lightweight frame, child geometry, aluminum fork, Tektro brakes, Microshift 1x8sp. gearing, suitable for a height of 110…
Buy
Superior RACER 20 kids bike Gloss Racing Red
Children's XC bike, aluminum frame, rigid fork, equipped with Shimano RevoShift 1x7sp., Schwalbe Black Jack tires 20 x 1.9", for children 100-130 cm.
Buy
Superior RACER 20 kolo Matte Radioactive Yellow 9.0"
Children's XC bike, aluminum frame, rigid fork, equipped with Shimano RevoShift 1x7sp., Schwalbe Black Jack tires 20 x 1.9", for children 100-130 cm.
Buy
Rock Machine Blizz Jr. 20 children's bike Orange
Children's bike 20", aluminum frame, rigid fork, microSHIFT 1x7 gearing, mechanical disc brakes, 20x1.90" tires.
Buy
Superior F.L.Y. 20 VB Matte Purple children's bike
Superior F. L. Y. 20 VB children's mountain bike, lightweight aluminum frame, 1x7-speed gearing, riged aluminum fork, weight 8.5 kg.
Buy
Für Versand nach Deutschland, besuchen Sie bitte Rock Machine RIFF Tr 20 Kinderfahrrad Matte Deep Ocean Blue
Für Versand nach Österreich, besuchen Sie bitte Rock Machine RIFF Tr 20 Kinderfahrrad Matte Deep Ocean Blue
Chcesz dostarczyć towar do Polski? Sprawdź Rock Machine RIFF Tr 20 rower dziecięcy Matte Deep Ocean Blue
Chcete doručit zboží do České republiky? Prohlédněte si Rock Machine RIFF Tr 20 dětské kolo Matte Deep Ocean Blue
Chcete doručiť tovar na Slovensko? Pozrite si Rock Machine RIFF Tr 20 detský bicykel Matte Deep Ocean Blue
We'll give you an even better one if we can.
I want to be informed if:
Proven quality you can trust
Handpicked and quality-checked
Our team helps you find your perfect fit
Mon - Fr: 10 am to 3 pm
We will reply within 24 hours
Added to Cart
Why create an account?
We have sent a confirmation email to .
Open it, click on the confirmation link and you are ready to shop.
Technical Support
+43 144 20070Mon - Fri: 9:00 to 5:00 PM
info@koloshop24.comWe will respond within 24 hours
during business hours
Write us with the specifications of the bike and add a photo.
![Netherlands [EUR]](/images/front/locales/NLD.svg)
Write a review
Continue Shopping
Via Facebook
Via Google
