from 135 cm body height

our lightweight, compact 650B Racebike
ab  2.674,09
    • create your very personal bike
    • light fork, excellent tunable to low rider weight by removing the volume spacers
    • The Worldcup approved ... the lightest fork on the market with all adjustment options and remote lock-out!
    • drops the front by approx. 50mm - ideal for racers up to and including U11
    • good 1x11 group with best price/performance ratio
    • very light group with top performance
    • enormous 500% spread for little money
    • light, noble finished group with 500% spreading
    • the absolute top model of SRAM - also visually a class of its own
    • robust and reliable brake with aluminium lever
    • light, nobly manufactured brake with aluminium lever - Made in Germany
    • very light, nobly manufactured brake with carbon lever - Made in Germany
    • limited, very eye-catching brake with carbon lever - Made in Germany
    • very light LRS that meets almost all requirements
    • the noble Tune hubs make the LRS a lot lighter
    • sturdy carbon rims make this LRS a faithful companion
    • robust Carbon LRS with the noble Tune King/Kong hubs
    • 1067g lightweight wheelset with Extralite Hyper hubs
    • this stem lowers the handlebars by 25mm - first choice for small drivers
    • light, child-friendly carbon saddle - Made in Austria
    • the top of the line model from KCNC with titanium screws
    • small platform pedal with good grip even without pins
    • Pedal with best performance under muddy conditions and relatively low weight
    • the incredibly light top model with titanium axle
Base price:  2.674,09
Base: 8,30KG

The Federleicht 27.5 MTB is a modern, very light bike for cycling enthusiastic children. The compact geometry with a deep bottom bracket follows the 29er idea and makes it possible to experience the advantage of 27.5" wheels at an early stage (already around 135cm body height).

The Federleicht crank, manufactured in Austria, is not only extremely light but also uniquely ergonomic with its low Q-factor. The noble workmanship and the robustness speak for themselves.

In Austria the very light Federleicht wheelset is built as carefully as the wheelsets of world champion Daniel Federspiel and therefore also very durable.

The robust 2-layer powder coating guarantees a permanently brilliant appearance.

That's why the Federleicht 27.5er is the ideal bike for your child:

  • light, perfectly finished frame with smoothed welding seams, Syntace X12 thru axle, Syntace derailleur hanger and robust powder coating manufactured in the EU
  • most compact, deep frame fits from 135cm body height
  • short chainstays and short head tube for agility and safe handling
  • numerous Federleicht components such as crank and wheel set - all developed in Austria and manufactured in Austria
  • Individualisation through assembly in Austria can be implemented quickly
  • best components without compromise - Fox suspension fork and Shimano XTR bottom bracket as standard!
  • the lightest 27,5er bike with 8,30 kg (with suspension fork) and potential up to 7,05 kg (with rigid fork)

Technical data

  • Federleicht 27,5er MTBfrom 135cm body hight
  • FrameFederleicht 27,5" Aluminum
  • ForkFox 32 Performance SC 27,5"
  • HeadsetFSA Orbit
  • Rear derailleurSRAM GX 11s
  • ShifterSRAM GX 11s on Magura Shiftmix
  • Brake leversMagura MT4
  • BrakesMagura MT4 140mm/160mm
  • WheelsetFederleicht Disc/Ryde Edge MC1/Sapim Laser spokes - tubeless ready
  • TiresConti Race King Race Sport 27,5x2.2
  • Weight8,3kg



with suspension fork:

A B C D E F G H I J K M* N**
360 74 85 70 100 555 60 150 410 675 391 895 870

mit rigid carbon fork:

A B C D E F G H I J K M* N**
360 75,5 85 71,5 0 555 60 150 410 656 391 848 823


* with series stem
** with Syntace Flatforce stem


Light and robust aluminium frame made to our specifications in the EU; Compact Ready 2 Race geometry with deep front and details that immediately catch the eye: polished welds, PM brake mount, X12 thru axle and an extremely durable powder coating - also in individual colours!


Lightest children's crank in the world developed by us and CNC manufactured in Austria; in 150mm length ideally adapted to the size of the riders; lowest Q-factor; exchangeable Narrow Wide chainring and XTR bottom bracket standard


Durable wheelset with a weight of 1.314g which is considerably lighter than the usual "light" wheelsets on the market; built by hand in Austria as carefully as the wheels of world champion Daniel Federspiel.


The Selle Italia SLR Kit Carbonio is our standard saddle for lightweight bikes. Sufficiently comfortable and very durable.

Suspension fork

Fox Forks for best performance and lowest weight. Upon request tuned by Fox Austria for lowest friction and outstanding response.


The SRAM 1x11 drive with 10/42 cassette in combination with the 28Z Narrow/Wide chainring is the ideal drive configuration - lightweight, high transmission bandwidth and narrow gradation.


The used components are usually to be found from the upper class on adult bikes - Magura suspension fork TS8R and brake MT4, Shimano XTR bottom bracket, KCNC lightweight components, Selle Italia saddle with carbon rails

Hinweis:The featherweight 27,5 is a category 3 bike according to the international standard ASTM F2043-13. Bikes of this category can be used in rough and unpaved terrain as well as for sporadic jumps with a maximum height of approx. 60 cm. However, even jumps of this height can cause significantly increased forces on the bike due to unclean landings or even falls, which can lead to damage to the bike and injury to the rider. The featherweight Bike 27,5er Alu is designed for riders up to 50 kilograms.

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