Fit A Front Derailleur

Introduction

A front derailleur doesn't have much adjustment so getting it in the right position is important.

Step 1

<h3>Step 1</h3><p>Set the front derailleur so that the outer plate of the derailleur cage – the metal plates that the chain passes through – is 2mm above the big chain-ring and lock it half-tight.
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Height

Set the front derailleur so that the outer plate of the derailleur cage – the metal plates that the chain passes through – is 2mm above the big chain-ring and lock it half-tight.

Step 2

<h3>Step 2</h3><p>Work the front derailleur manually to check it won’t touch the chain-rings anywhere in it’s range of movement. In case of inteference raise the derailleur as little as possible to eliminate the clash.
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Check

Work the front derailleur manually to check it won’t touch the chain-rings anywhere in it’s range of movement. In case of inteference raise the derailleur as little as possible to eliminate the clash.

Step 3

<h3>Step 3</h3><p>Set the cage plates exactly parallel to the chain-rings.
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Horizontal Alignment

Set the cage plates exactly parallel to the chain-rings.

Step 4

<h3>Step 4</h3><p>Tighten the fixing or the clamp bolt to lock the front derailleur in place.
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Lock the front derailleur

Tighten the fixing or the clamp bolt to lock the front derailleur in place.