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Naloo Mountain Jack 20" 9-Speed

Perfectly sized full-suspension MTB for kids that shred!
CHF 54.00

48-65 cm inseam
Subscriptions: monthly payments; 12 month minimum contract; upgrades possible after 6 months

The sophisticated kinematics of this mini shredder provide a whopping 100 mm of travel. Thanks to a 9-speed gear system and a steep seat angle, you can also go up hills quickly. An extremely versatile and child-friendly full suspension machine - even with space for a drinking bottle in the frame.

Child-specific ergonomics:

  • Lightweight
  • Kids' specific components and suspension dampening
  • Thoughtful geometry including low bottom bracket increases stability
  • Low chainstay for less chain slap
  • Cranks with an extra narrow, 149mm, Q-factor
  • Handlebar with 12° backsweep for ergonomic hand position
  • Extra small diameter handlebar for small hands, with twist-proof grips.


Normal handlebars have a backsweep of 8°. The wrist is severely bent and in an unnatural position. NALOO handlebars have a backsweep of 12°. The hand position is ergonomic and natural. The result: relaxed wrists and shoulders.

Normal grips have a diameter of 30 mm or more which children's hands can find hard to grip. NALOO grips have an adapted diameter of 25 to 28 mm. Children can completely wrap their hands around these grips and thus have much better control over the bike and tire less.

The pedal spacing (Q-factor) on lower-quality children's bikes is often the same as on adult bikes. This leads to a far too wide leg position which is unergonomic. NALOO bikes have a significantly lower Q-factor and bring the leg position into an ergonomic position that relieves those smaller hips and knees.

For children from approx. 5 years.


10.5 kg (without pedals)

Custom butted 6061-T6 aluminum. Four-bar linkage with HorstLink, optimized kinematics for children. Rear axle: 12mm rear thru axle. Sram UDH derailleur hanger
Rear suspension: RockShox Trunnion Deluxe Select R (rebound adjustable), “Kids Tune” for optimal response with light body weight, 100mm travel

Manitou Junit Air 100mm (rebound and compression adjustable). 15x110mm Hexlock SL Axle, “Kids Tune” for optimal response with a light body weight

Handlebar: Ergonomic with 12° bend backwards, lightweight 7050 double-butted aluminum, 31.8mm clamp, 12.5mm rise, width 580mm
Grips: Anti-twist with extra small diameter (25mm)
Stem: 3D forged 6061T6 aluminum, 31.8mm clamp, length 40mm, angle +7°
Brake levers: Shimano MT-410
Shifters: 9-speed SRAM X5 shifter

Cranks: Lightweight aluminum with hollow axle and extra narrow Q-factor 149mm, 105mm length
Chainring: 28T direct mount
Rear derailleur: 9-speed SRAM X5
Cassette: Sunrace 11-36T

Brakes: Shimano MT-410 (front 160mm/rear 160mm)

Rims: Newmen X.A.25, tubeless ready
Hubs: Aluminum hubs with sealed industrial bearings
Tyres: Schwalbe Rocket Ron 20x2.25 LiteSkin, folding tire, tubeless ready
Tubes: Kenda Super-Light with Presta valve

Saddle: Age-appropriate ergonomics, robust upper material, free from plasticizers and harmful substances
Seat Post: Aluminum, diameter 31.6mm, length 250mm

Pedals: VP-225

EN17406 3 (see use classification)