Gear slipping issue

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Chippy Dave

Active Member
Hi all
I recently bought a new Specialized Allez Elite road bike which was assembled and then packaged and then sent to me.
It has Shimano 105 R7000GS front and rear derailleur, I had to adjust the front derailleur as it was rubbing really badly, but I think I need to make some adjustments to the rear too because it’s slipping higher gears on both the small and large front cog, it’s also I would say noisier than it should be when riding. Can anybody give me some advice on the adjustment on it and how I go about it as I’m new to bike maintenance but I’m practical enough to do it.
Thanks in advance.
Dave
 

Gunk

Guru
Location
Oxford
There should be a barrel adjuster on the rear mech, I would start with that. It might only need a slight tweak
 
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