Difficulty in getting high gear

Paul120
Paul120 Posts: 4
edited October 2019 in Road beginners
I am having a problem getting my bike to shift into it's highest gear. It's a 20 year old Ridgeback Adventure K4.

I had the bike fully serviced a few months ago, and everything seemed fine. Now I can't get the gears to shift to the highest one. If I turn the bike upside down [I don't have a bike stand] and go through the gears they all work fine and it shifts into the highest gear very well - try and change whilst riding though it and it won't engage. I have a Shimano 3 x 7 setup.

Any ideas?

Comments

  • Thanks for the link. The difficulty I have is that if I start adjusting the gears I will make things worse. What I can't understand is why the gears change correctly when the bike is upside down - but not when I am riding it.
  • gethinceri
    gethinceri Posts: 1,645
    Because it's upside-down. A derailleur is designed to work when the wheels are on the ground
  • david7m
    david7m Posts: 636
    Paul120 wrote:
    Thanks for the link. The difficulty I have is that if I start adjusting the gears I will make things worse. What I can't understand is why the gears change correctly when the bike is upside down - but not when I am riding it.

    Make a note of what you've done, then if makes things worse, revert back. Eg 1/2 turn out H screw.
  • Matthewfalle
    Matthewfalle Posts: 17,380
    Gethinceri wrote:
    Because it's upside-down. A derailleur is designed to work when the wheels are on the ground

    but what if he lives in Australia, eh? Then your plan is all out to mishap, mah boy, eh.
    Postby team47b » Sun Jun 28, 2015 11:53 am

    De Sisti wrote:
    This is one of the silliest threads I've come across. :lol:

    Recognition at last Matthew, well done!, a justified honour :D
    smithy21 wrote:

    He's right you know.
  • Sorted. Obtained screwdriver and fiddled with the H setting. It now seems to work OK. Thanks for all the helpful comments.