zs_phil

iTrader: (1)

hi all some may have seen my help my tv is ****'d this time i need advice on my bicycle (some week ).

i bought myself a nice new scott hybrid bike for commuting from freetown sports in hull paid £699.... nice bike but its been in my garage since i finished work on tuesday just dug it out for a ride to the nearby garage for some cigs for her ,took me bloody ages to get there and back only 5 mins away every gear was slipping and i mean slipping every metre or so
what could have done this and whats the cure
derailer ???

nixxon

Could be the derailleur adjustment, or a stiff, unlubed chain (unlikely).
The cable may have slipped or "settled". Take it back and have them re-adjust it. It'll only take them 5 mins, and they won't mind.
Cheers, Nick

mrtheedge2u2

best cure is to get a unicylce

zs_phil

iTrader: (1)

hmmm how about this one that a hulk hogan lookalike is modeling

mrtheedge2u2

saw that in a documentary.... think it was called 'when dinosaurs get drunk' .... was on sky one

zs_phil

iTrader: (1)

did it work and was it fast .....awd

dicky ticker

sounds like you may have a stiff link(s) in the chain. this will stop it bending properly around the gears / chainring,

best way to identify this is by turning the pedals (backwards) whilst you are off the bike. watch the chain as it goes around the gears and the stiff link or other problem should be easily identifiable.

if it is a stiff link its easily curable - it just needs loosening. hold the chain with one hand either side of the stiff link with your thumbs on the link. try bending the chain backwards and forwards (to and away from you). this usually works and will give you the extra little play you need in the joints

zs_phil

iTrader: (1)

cheers for that ill give it a try one thing i did notice when i was on the bike was i pedalled in the opposite direction and it got jammed so could be a stiff link .

ill try in the morning

dicky ticker

in my experience a stiff link is more likely to get stuck in the rear mech (derailluer) when pedalling backwards.

a stiff should cause problems in every gear too.

if it is a misalignment in the rear mech this should be less problematical in the middle gears

good luck

Luke

chances are they did not set the bike up well. return it and ask for it to be serviced/

nsld

if its a new problem its more likely to be cable stretch which all new bikes suffer from.

Easiest way to test is to put the chain on the largest front cog and the smallest rear cog and then test the tension of the gear cable for the rear deurallier. It should be relatively taught, if its really slack then its slipped or stretched.

Modern STI style gear shifters rely on pulling the cable a certain distance to get the step up, if the cable is slack to start then it wont pull properly and you wont get the smooth change.

Stiff link is less common and would usually lead to a jam in the rear mech around the pulleys as the angle of turn is to great and the link jams against the pulley frame. Its not impossible though.