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Below the Bar Shifters
Many mountain style bicycles now use a shift lever arrangement
mounted on the underside of the handlebars, which use two levers
operated by the thumb and index finger. To select a lower gear push the
larger (lower) right shifter with your thumb to engage a larger rear cog.
One firm push shifts the chain one cog, continuing to push will move
the chain over multiple cogs. Pulling the smaller (upper) left shifter with
your index finger moves the chain from a larger to a smaller chainwheel.
To select a higher gear pull the smaller (upper) right lever with your
index finger to engage a smaller rear cog. Pushing the larger (lower)
left lever with your thumb will move the chain from a smaller to a larger
chainwheel. Please refer to pages 130-133 for additional instructions in
“How Things Work”.
Left hand lever
Right hand lever
