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For your safety, the saddle 

should not be raised above 

the marker on the seat post. 

• Mountain bike/Hybrid/town bike

For a good pedalling position, set your saddle height so
that with your leg extended your heel rests on the pedal (in
the lowest position) 

Therefore, when pedalling your leg will be slightly bent at
the lowest point so that your hips do not sway and for easy
pedalling.

Rapid seat pin blocking will make tightening easier
To tighten, place the lever at 90°, completely hand tighten
the screw and pull the lever down. The force used should be
sufficient to block the seat pin.

• Road

Multiply the crotch value by 0.88 to obtain
your seat height, the distance separating
the centre of your pedal above your seat,
that you will set parallel to 
the ground.

DECATHLON ADVICE : 

• Using a mountain bike, your saddle will be set in a high position when you are

on flat or rising ground to increase your pedalling power.  However, going
downhill, to better control your bike, lower at the saddle so you can recover
your route by putting your feet on the ground.

• To set the saddle recoil: sat on the saddle, feet in the pedals (conventional or

automatic), the swivel joint should be perpendicular to the pedal spindle when
the crank is horizontal.

A

A x 0,88

9

FIRST SECTION

I

Setting the riding position and safety"

1. Ensure that the bicycle is the right size

A bicycle that is too big or two small for riding is difficult to control and may be 
uncomfortable.

Size of the frame 

(one inch = 25,4mm):

To check if the size of the bicycle is correct, just get on it and put your hands on

 

the handlebars. If your crotch touches the frame, the bicycle is too big for you.

 

There should be between one and two inches between your crotch and the frame.

Your size

Mountain bike 

Hybrid/town bike

Btwin

frame

frame

frame

From 1m05 to 1m20

16” (4 to 7 years old)

From 1m15 to 1m40

20” (7 to 11 years)

20” Btwin

From 1m35 to 1m55

24” (from 8 years old)

City bike 24”

24” Btwin

From 1m55 to 1m60

S

S (24’’)

From 1m60 to 1m70

M

M

M

From 1m70 to 1m80

L

L

L

More than 1m80

XL

XL

XL

SPORT

COMPETITION

Your crotch

Road frame

Your crotch

Road frame

630 to 676

45

715 to 746

49

2/ Adjusting the height of your saddle

You should check the height of the saddle and handlebars, check the condition of
wear parts and maintain them to ensure complete safety.

8

Summary of Contents for B'Original

Page 1: ...Guide and guarantee instructions www decathlon com ...

Page 2: ... So that it gives you riding pleasure for as long as possible please read this user guide It will give you information necessary for adjusting maintaining and properly using your Decathlon bicycle Keep this guide in a safe place Decathlon is not liable for accidents or injuries due to improper use of the product failure to adhere to the instructions given in this guide or modifications to the prod...

Page 3: ... on earth mounds Flat for figures on the ground Racing on an earth circuit with bumps So properly identify your discipline Children s bicycles 16 to 24 Look price accessories according to requirements To ride tear long and have fun in complete safety Well fitted comfortable solid practical and full of clever tricks it will be the ideal friend for going to school and outside school activities 5 IMP...

Page 4: ...nd be careful 7 SAFETY PRECAUTIONS AND USER INSTRUCTIONS Precious advice for riding in complete safety Always carry out a complete check before riding Thoroughly read the safety section I 4 Always wear helmets when you are riding to protect your head in a fall Ride in the same direction as traffic never against the flow Never attach yourself to a car or any other vehicle Check your speed avoid big...

Page 5: ...nd To set the saddle recoil sat on the saddle feet in the pedals conventional or automatic the swivel joint should be perpendicular to the pedal spindle when the crank is horizontal A A x 0 88 9 FIRST SECTION I Setting the riding position and safety 1 Ensure that the bicycle is the right size A bicycle that is too big or two small for riding is difficult to control and may be uncomfortable Size of...

Page 6: ... the section on changing speeds and adjustments Do you wear a helmet reinforced clothing and equipment like glo ves and glasses Never wear clothes that are too big and could get stuck in the wheels 35 60 PSI 2 5 5 5 BAR ROTATING DIRECTION Fig 1 Fig 2 57 589 26x2 125 11 3 Setting the stem and the handlebar For your safety the handlebar may be extended until the maximum markers diagram 1 Road Once t...

Page 7: ...n plates and cogs 13 Is it raining or wet In this case be even more careful The risks in braking increase and the adheren ce of your tyres on the road is reduced Also remember that the visibility of motor vehicles is reduced in bad weather Are your pedals properly tightened Check your pedal is properly tightened to the crank Read the section on how to fix your pedals IV 2 How do clipless pedals fu...

Page 8: ...ront wheel Frame Rear wheel Frame Child 12 14 20 Not applicable 10 12 14 8 Child 14 16 Not applicable 20 Not applicable 10 12 22 30 22 30 Junior 20 24 1 screw 18 2 screws 12 1 screw 21 2 screws 12 22 Quick release or 12 14 Quick release or 22 30 Quick release or 22 30 BMX 10 10 16 or pivotal system 6 Quick release or 8 10 35 40 35 40 Town and country 1 screw 18 2 screws 14 4 screws 7 1 screw 18 2 ...

Page 9: ...wise reduces it regulation of force open closed closed open open position open position closed position closed position 17 Medium size standard screwdriver Phillips screwdriver 10 adjustable wrench 6 adjustable wrench Pliers Metric allen wrenchs Type of bike Stem Handlebar Stem Fork Seat Seat post Seat post Frame Front wheel Frame Rear wheel Frame Competition mountain bike 5 7 8 Quick release or 8...

Page 10: ...d the V Brake system and calipers for road bikes Adjusting brake pads 1 Check the alignment of the pad with the rim side 2 Check the pads are properly centred relative to the wheel Be careful to leave 1 mm between the rim and the pad L R Left and right L R 19 Removing or installing the wheel fixing system opened the brake pad see the Brakes section turned in the quick fastener lever from Closed to...

Page 11: ...rim Disc brakes become hot and may cause burning after breaking weight about 30 minutes before touching the rotor 4 Derailleur You will find two types of the changer on Decathlon bicycles a conventional gear changer most bicycles speeds in the hub 21 3 Always move the back of the pad away from the rim Be careful to leave about 1 mm between the rim and the pad Changing brake pads Unscrew your pad w...

Page 12: ...shifts it s too loose Loosen the lock nut readjust the adjusting cone and then re tighten the lock nut DANGER An over tightening of the stem to fork assembly bolts can make irreversible dama ges in the steering tube and may provoke an accident that can cause serious inju ries or death can pull a blocking or a breakage of the movements damage the tube of direction To avoid an over tightening please...

Page 13: ...e For the stand follow the diagram below Refer to the assembly instructions for stabilisers 25 CAUTION Headset adjustment requires special tools and training and should only be perfor med by your bike dealer Further adjustment of the rotor is covered in the brake system section 6 Chain tension for single speed bicycles The chain transmits the energy that you supply when you pedal to the wheel As w...

Page 14: ...ism or non secure transport 27 V BMX BIKES Rotor 1 Changing and adjusting rear brake cables Assemble the lower cable coming from the rotor to the rear brake jaws and pre set the rear jaw fixing the cable tension with the jaw cable clip Assemble the upper cable from the rotor to the rear cable lever Set the two fixed lower cables on the rotor s mobile flange using setting screws screwed to the fixe...

Page 15: ...hen you buy a Decathlon bicycle a safety visit is provided free of charge within the three months following your purchase Contact out after sales service department and make an appointment we will check all safety points 28 3 months NAME DATE 6 months NAME DATE 1 year NAME DATE 2 years NAME DATE FREE REVISION ...

Page 16: ...ight brake levers positioned and tight Cantilever Caliper mounting Brake pads positioned and tight Brake cable adjusted Bottom bracket adjusted Crank arm bolt tight Derailleur mounting bolt Front rear derailleur aligned adjusted Air in tires to proper pressure Tires inspected for mounting on rim Reflector kit installed Kickstand straight tight Accessories installed tight Cable end caps on Valve du...

Page 17: ...nership with the Sportlab so that you may fully live your passion Our design department ensures that our products meet your expectations of the image of the b Twin They bring specialcare to make sure that the technicalnature the comfort and the look of our bicyclesare perfectly adapted to their use Modernity simplicityand passion guide our imagination Designer Industrial design Design Innovation M...

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