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Decathlon BTWIN User Manual

Decathlon BTWIN
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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 too 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 about one and two inches between your crotch and the frame.
SPORT
COMPETITION
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.
Your crotch
Road frame
630 to 676
45
Your crotch
Road frame
715 to 746
49
Your size
Mountain bike
frame
Btwin
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)
24” Btwin
From 1m55 to 1m60
S
S (24’’)
From 1m60 to 1m70
M
M
From 1m70 to 1m80
L
L
More than 1m80
XL
XL
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Decathlon BTWIN Specifications

General IconGeneral
BrandDecathlon
ModelBTWIN
CategoryBicycle
LanguageEnglish

Summary

Important Information and Bicycle Types

Choosing the Right Bicycle

Guide to choosing the right bicycle for your needs based on different types.

Safety Precautions and User Instructions

Riding in Adverse Conditions

Safety advice for riding in low visibility conditions and adverse weather.

Responsible Riding Practices

Guidelines for responsible riding and respecting pathways and other users.

First Section: Riding Position and Safety

Setting Riding Position and Safety

Adjusting saddle and handlebar height for optimal riding position and safety.

Saddle Height Adjustment

Guidance on setting saddle height for mountain, hybrid, and road bikes.

Stem and Handlebar Adjustment

Instructions for adjusting handlebar height for different bike types (road, town, MTB).

Critical Safety Checks

Ensuring saddle pin, stem, and tires are correctly tightened and inflated.

Brake System Functionality

Procedures for checking front and rear brake function and proper adjustment.

Gear Shifting and Protective Gear

Checking gear shifting ease and recommendations for helmet and clothing.

Wet Weather Riding Precautions

Precautions for riding in rain or wet conditions, impact on braking and visibility.

Component Checks: Pedals and Suspension

Ensuring pedals are tight and checking for play in suspension systems.

Reflector Maintenance Guidelines

Guidance on cleaning, orienting, and tightening bicycle reflectors for visibility.

Bicycle Maintenance

General Maintenance Principles

General advice on bicycle maintenance frequency and methods, comparing to car maintenance.

Cleaning and Lubrication Procedures

Detailed instructions for cleaning bicycle parts and lubricating cables, chain, and hubs.

Usage-Based Maintenance

Specific maintenance needs for town/riding bikes versus mountain bikes based on usage.

Maintenance Schedules

3-Month Maintenance

Scheduled maintenance tasks for 3-month intervals, including tightening and wheel tension.

6-Month Maintenance

Scheduled maintenance tasks for 6-month intervals, including chain replacement and tightening.

1-Year Maintenance

Scheduled maintenance tasks for 1-year intervals, including chainset box and cable replacement.

2-Year Maintenance

Scheduled maintenance tasks for 2-year intervals, including chainset box and cable replacement.

Second Section: Assembly and Adjustments

Essential Tools for Assembly

List of essential tools required for bicycle assembly, adjustment, and repair.

General Assembly and Adjustment Procedures

Detailed steps for assembling and adjusting bicycle components and systems.

Wheel Fixing System Installation

Instructions for safely removing and installing bicycle wheel fixing systems (quick fasteners).

Pedal Installation and Identification

Guidance on correctly identifying and installing bicycle pedals using the proper tools.

Brake Lever and Caliper Adjustment

Procedures for adjusting brake levers and calipers for optimal braking performance.

Brake Pad Adjustment and Replacement

Steps for adjusting and changing bicycle brake pads for effective stopping power.

Brake Operation and System Adjustment

Instructions on how to use brakes correctly and adjust caliper balancing for different brake types.

Disc Brake Cable and Pad Service

Instructions for assembling disc brake cables and changing friction pads.

Derailleur System Overview

Overview of the two types of derailleur systems found on Decathlon bicycles.

Gear Changer Adjustment

Adjusting front and rear derailleurs for smooth and accurate gear changes.

Hub Gear System Operation

Explanation of how hub gears work and their maintenance requirements.

Headset Bearing Adjustment Procedure

Procedure for checking and adjusting headset bearings for smooth steering and safety.

Single Speed Chain Tension

How to check and adjust chain tension on single speed bicycles.

Seat Post Tightening Instructions

Instructions on how to correctly tighten the seat post to the frame.

Fitting Bicycle Accessories

Guidance on installing accessories like bottle cages, stands, and stabilizers.

BMX Bike Specifics

Rotor and Rear Brake Cable Adjustment

Assembling and adjusting rear brake cables for BMX bikes with rotors.

U-Type Brake Adjustment

Steps for adjusting U-type brakes, including cable tension and pad alignment.

Bicycle Guarantee Information

Warranty Period and Coverage Details

Details on the duration and scope of the bicycle's limited warranty coverage.

Lifetime Guarantee Exclusions

Conditions and situations that are excluded from the lifetime warranty on specific parts.

Free Bicycle Revision Service

Scheduled Free Safety Check

Information about the free safety check offered within one month of purchase.

Bicycle Assembly Checklist

Assembly Checklist Items

List of checks performed during bicycle assembly to ensure proper setup and safety.

About the Bicycle Manufacturer

Industrial Design and Innovation

Information on B'twin's approach to industrial design, innovation, and product development.

Product Design Philosophy

Overview of the design department's focus on meeting expectations, technical nature, and comfort.

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