Light 20“ for beginner bikers. A quality aluminium frame with comfortable geometry will teach little riders the correct riding techniques. Shimano 1x6 gear with a good range for relaxed trips and climbing first hills, light V-brakes with sufficient brake force, and the merry design have a single goal: to show the kids that a bike is fun.
  • Junior Fun Geometry
  • SHIMANO 1x6 28x14-28
  • SR Suntour XCT JR20 fork (50 mm)
  • TEKTRO V-brakes
  • Tires Freedom Challenger 20x1.95"

  • COLOUR Gloss Neon Cyan/Petrol Blue/Radioactive Yellow
  • FRAME Alloy Al-6061 T6 Custom tubing, Junior Fun Geometry, BB BSA 68mm , OLD 130x9, V-brake pivots, Fender Ready Dropout, Replaceable RD Hanger, Kickstand mount
  • HEAD SET CH290TBW, 1-1/8"
  • FORK SR Suntour XCT JR20, 1-1/8", Coil, QR Type, 40mm travel
  • SIZES 9.0"

  • GEARS 1x6
  • SHIFTER SHIMANO SL-RV200-6R RevoShift, 6-speed
  • REAR DERAILLEUR microSHIFT RD-M21SS, Super Short cage
  • CRANKSET Wheel Top SXB4BL-MS, 28T
  • CASSETE SHIMANO MF-TZ500-6, 14-28T
  • BOTTOM BRACKET Thun Topaz 120mm, BSA, shell 68mm
  • CHAIN KMC Z8.3
  • PEDALS Marwi SP-202

  • HANDLEBAR ONE1 Hi-ten, MTB-152TP, 10° backsweep, 20mm rise, 560mm, 25.4mm
  • STEM ONE1 MAS-M60368 Alloy, 25.4xE35mm, 15°
  • GRIPS Velo VL-G311
  • BRAKES Tektro V-brakes
  • SADDLE ONE1 Junior
  • SEAT POST ONE1 Alloy, SP C208, 27.2x230mm

  • FRONT HUB ONE1 KTA55F, 24H, M9x100mm, QR Type
  • REAR HUB ONE1 KTA52R, 24H, M10x135, FREEWHEEL, QR Type
  • RIMS Stars J19SD, 24H
  • TIRES Freedom Challenger 20x1.95"
  • SPOKES Sapim Galvanized Black

  • Total WEIGHT* 10.5 Kg

Weight is set for M sized frame unless stated otherwise. We focus on maximum reliability, so cutting some grams down is not our priority! The weight is measured as the each bike specification shows.

Frame Size 9"
SEAT TUBE LENGTH (mm) 9": 230
seat tube angle degree 9": 73
REAch (mm) 9": 333
HEAD TUBE LENGTH (mm) 9": 100
head tube angle degree 9": 69
bb drop (mm) 9": 0
WHEELBASE (mm) 9": 868
Handlebar Width (mm) 9": 560 - R20
Stem Length (mm) 9": 35
Crank Length (mm) 9": 127
seat post lenght/travel (mm) 9": 230
Number BFI Code Description
999 013.0002.00110-244 Rear derailleur hanger

Frame size

We reccomend *

* The recommendation covers most common body types. Always try the bike yourself at the nearest shop!

2021 NOTE: Due to the pandemic and difficulties in the delivery chain arising worldwide & extreme demand for our bikes at the same time, we reserve the right to replace some parts with those at the same level of performance (e.g. different brand, the same level of parts) to keep the overall quality of our bicycles. We’re sorry about that. At the end of the day, riding a bike is the best way of #staypositive ever, no matter what brand your handlebar or any other part is!

Manufacturers reserve the right to vary specifiations, including colors, with or without notice at such times in such manner as deemed appropriate. Major as well as minor changes may be involved. Every effort, however, is made to ensure the accuracy of the particulars contained in this presentation. Consult your Dealer for details regarding the specifications of any featured product. This presentation shall not constitute - under any circumstances whatsoever - an offer by the Company to any individual. All sales are made by the Distributor or Dealer subject to and with the benefit of the standard Conditions of Sale and Warranty provided by the Distributor or Dealer, copies of which may be obtained upon request. While efforts are made to ensure specification accuracy cannot always immediately reflect either change in specification or in some isolated cases the provision of a particular feature. Customers are always advised to discuss specific details with the supplying Dealer, especially if a selection is dependent upon one of the features advertised.* The range of the e-bike depends on many factors such as the rider's weight, the track profile, the level of assistance, gear settings, the wind, etc., so the information is indicative and may vary.

Nearest shops

Kola Pešek a syn I

1034 km away

U Elekrárny 306

53002 Pardubice - Čeperka

Picton Cycles

5673 km away

High St 11-13

L15 8HE Liverpool

Brattørkaia Sykkel AS

6094 km away

Brattørkaia 15AB

7010 Trondheim

VOF Fietsen Opsomer

6155 km away

Hillesteenweg 20

8750 Wingene

Tel.: 0032-51612755

We strongly recommend buying our products from authorized dealers only.

Professionals who can advise you the best bike fits your riding style and subsequent service.

Consider these

Rock Machine Research&Development

Passion. Mission.

If you want to burn, be on fire! From the first pencil sketch, through prototype testing and debugging to the finished product tested in the most rigorous labs by the engineers and on the trails by our ambassadors and us.

See you on the trail!

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