Shimano 105 downshift query

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Kbrook

Guru
Hi I got my new bike mail order. Shimano 105 the right shift for the rear cassette only downshifts a maximum of two gears, I believe, but I'm not sure it should be three. Is that correct? If it is any ideas how to correct it?
 
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K

Kbrook

Guru
Ignore sorted thanks.
 
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