A lightweight frame for more committed mountain biking:
Our engineers designed this aluminum frame to be lightweight, weighing less than 10 kg.
Very slooping for greater maneuverability on difficult terrain.
On the frame you'll also find 2 inserts to allow you to assemble a water bottle holder for longer rides.
A rigid fork is a choice:
No suspension fork for this 20" EXPL 900 model.
The aim is to save weight without compromising on cushioning.
To maintain the suspension effect, we've used a new pair of tires with a large 2.2 section.
Cushioning and grip are assured.
An 8-speed transmission designed with children in mind:
This bike is equipped with our innovative Easytrigger handle, designed for easy shifting of the 8 gears.
The derailleur allows shifting from one gear to another on the 11/34 freewheel.
The 32-tooth crankset has 140mm cranks and is equipped with a double housing to prevent derailing.
Controlled braking:
We've fitted the bike with mechanical disc brakes front and rear for progressive yet powerful braking.
The discs are 160 mm.
Running-in disc brakes :
Running-in is necessary. On a flat, dry road, perform 3 series of 10 progressive braking operations at increasing speeds.
1) Ride at 15 km/h, brake down to 5 km/h, repeat 10 times.
2) Ride at 20 km/h, brake down to 5 km/h, repeat 10 times.
3) Optional (child's bike): Ride at 25 km/h, brake down to 5 km/h, repeat 10 times.
Between each step, release the brake and ride for a few dozen meters to ventilate the disc. This run-in optimizes pad/disc adhesion.
A comfortable cockpit:
The 580 mm oversize handlebars provide stability on descents,
good balance in the dancer position and improved maneuverability.
This handlebar width also opens up the rib cage to optimize breathing.
A crankset with child-friendly cranks:
The new crankset has a crank length of 140 mm which is adapted to the child's leg length.
This crankset makes it easier to start pedaling.
20" wheels and off-road tires:
For transporting the bike, we've made it easy to mount/dismount the front wheel.
It's equipped with a quick-release system.
The 20" studded tires with a 2.2 cross-section provide grip and comfort.
They compensate for the absence of a suspension fork.
Recommended tire pressure is indicated on the tire sidewall (between 2 and 3.5 bar).
The 20" inner tube is compatible with sections from 1.7 to 2.2.
Schrader valve.
Bicycle equipment is available:
This mountain bike is equipped with a bell, lights, wheel reflectors (reflectors) and flat pedals.
The frame is also compatible with other B'TWIN accessories:
- front and rear mudguards
- kickstand
- bottle and water bottle holder
- bike bag
- stabilizers
Dimensions of the ready-to-ride bike :
Length: 140 cm.
Height: 76 cm.
Width: 58 cm.
Frame dimensions :
Length of top tube: 450 mm
Length of seat tube: 285 mm
Length of rear chainstays: 360 mm
Length of seat post: 300 mm
Steering angle: 69°.
Ordering online :
To guarantee quality transport, our bikes are sent with pedals disassembled and handlebars unclamped (instructions and tools supplied).
Non-contractual photos :
Regarding transmission components, in particular the freewheel and derailleur, the photos or videos on the bike's description sheet show a specific model of derailleur and freewheel. However, due to supply difficulties, the bike may be equipped with a derailleur and an equivalent cassette from another brand.
Look after your child's bike!
Take good care of your child's bike, so that it's always ready for new adventures!
For complete maintenance of your child's bike, we recommend the following 3 steps:
01 Degrease your transmission 02 Clean your bike 03 Lubricate your bike chain
3 steps, 3 necessary products to be found in our bike cleaning kit (8751194), which will become your best ally!
Warranty
for life (frame, stem, handlebars, rigid fork). Find out more about our bike warranty.
