31
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Sram derailleur
Front Changer
If the chain cage is more than 1 mm
from the biggest chainring, slacken off
the bolt on the clip a little. Then drop
the front changer until it is as close as
the indicator shown here. The outer
chain cage must also be parallel with the
chainring.
Turn the L screw clockwise if the chain
tends to get thrown off the small
chain-ring. Turn the H screw clockwise
if the chain tends to come off the big
chainring. Turn the adjuster screws
anti-clockwise if the chain doesn’t climb
easily onto the chainring.
Adjust the H screw so that a line
through the centre of both jockey
wheels hits the outer edge of the
smallest sprocket. Then press the
gear inwards with your thumb and
adjust the L screw so that the jockey
wheels line up exactly with the largest
sprocket.
Now check that there are 3 chain rivets
between the point where the chain
leaves the biggest sprocket and where
it first touches the top jockey wheel.
Adjust the B screw if necessary. Finalise
adjustment as in pictures 3 and 4 on
page 30.
1
2
1
2
L
H
Stiff link
Sometimes, you may notice a little jerk of the
pedals that happens in every gear. It won’t
happen every turn of the pedals but
roughly every two and a half turns.
This is caused by one link of the chain
stiffening up, so it must be loosened
off. Clean the chain first because
it’ll be a filthy job otherwise. Then
turn the bike upside down and turn
the pedals. As you watch the chain
running over the jockey wheels, you‘ll
easily spot the link which doesn’t run
through the chain cage smoothly but
which jumps or kicks a little.
This is the stiff link, so flex it from side to side
with your thumbs, until it loosens up. If this does
not work, ask your retailer for advice.
Ensure you fit the correct type of chain.
Single Speed
5-8 Speed
9 Speed
10 Speed
chainwear Indicator
A chainwear indicator tells you if the chain has stretched. If you ride with a
stretched chain you will prematurely wear out your chain rings and casette and in
extreme cases it will cause your gears to slip.
