Rear Mech Issues

Posts

• skyd0g Posts: 2,540

  October 2009

  Are you in the smallest cog on the frront when this happens?
  
  If so, it sounds as if you just need to slightly adjust the rear mech. If it indexes perfectly throughout the rest of the cassette, it sounds as if you just need to slightly adjust the "L" screw.
  
  See here for help: http://www.parktool.com/repair/readhowto.asp?id=64

  Cycling weakly

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• maddog 2 Posts: 8,114

  October 2009 edited October 2009

  if all the other gears are spot on then it will be a limit screw issue, as skyd0g says.
  
  if all the other gears are also hesitant to shift up to the next sprocket, then it's a cable tension issue, so you need to turn the adjuster anti-clockwise to dial in more tension.
  
  But just check that click 1 on your shifter is aligned to sprocket 1 (smallest) though, and click 2 to sprocket 2 and so on. I've see this a few times and it will mean that the lowest gear can't be achieved, as you effectively run out of clicks.

  Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer

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• redddraggon Posts: 10,862

  October 2009

  Sounds like the gear cable has stretch a bit, and so the chain isn't sitting on the biggest sprocket properly when in the lowest gear.

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• maddog 2 Posts: 8,114

  October 2009

  first post edited 8)

  Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer

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• Mendip rouleur Posts: 163

  October 2009

  Thanks for all the advice guys, I'm now sorted and dancing (like my Dad at a wedding) up hills!

  “I ride my bicycle to ride my bicycle.”
  
  http://mendiprouleur.blogspot.com/

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