Subway gear change

[captainhastings]

Just bought a subway last week ( http://www.halfords.com/webapp/wcs/..._productId_712151_langId_-1_categoryId_165534 ) but I have noticed with the gears when I change to 6th gear it jumps to 7

I have seen this video http://bicycletutor.com/adjust-rear-derailleur/ but I am still not sure which screw I need to adjust.

I can take it back for a service at any time with in 6 weeks but I have only had it about 4 days so dont really want to go straight back

 

[youngoldbloke]

This seems to keep coming up - new bike from Halfords - within X days - gears need adjustment. They should be perfectly set up before the bike is sold, otherwise IMO it is not fit for purpose. Take it back and insist that they set it up properly. YOU should not even think that YOU might have to adjust them yourself yet, and it is not a 'service' matter, unless you have managed to ride the bike hundreds of miles in those four days!

(have you seen http://www.cyclechat.co.uk/forums/showthread.php?t=40064 )

 

[Garz]

Well depends on how much mileage you do (in this case four days it shouldn't happen), but after 400 miles on my bike over about five weeks the cables do stretch and may need tweaking. Just because a bike is new doesn't negate it from ever needing attention but I know where your coming from YOB.

 

[youngoldbloke]

Just because a bike is new doesn't negate it from ever needing attention but I know where your coming from YOB.
- obviously, I don't think I said or suggested that - and I don't think the OP has managed to do anywhere like 400 miles yet has he?

 

[cyberknight]

I have a year old subway assuming the gears are the same?

anyway you either have a twistable adjuster where the cable comes out of your rear derailler or where it comes out of the gear changer .

TBH though if its that new its still under warranty they have not set it up right take it back !!

 

[Garz]

]- obviously, I don't think I said or suggested that - and I don't think the OP has managed to do anywhere like 400 miles yet has he?

Did you read what I wrote in brackets? O.K. :

in this case four days it shouldn't happen

Calm down lad.

 

[captainhastings]

done 12 miles lol I will ring them in the morning
It did it on the first ride but I thought it might be me. But it does it with out any weight and just lifted off the ground

(have you seen http://www.cyclechat.co.uk/forums/showthread.php?t=40064 )

Yea I saw that which got me thinking I should do some thing about it now rather than wait till I take it for the free service.

 

[youngoldbloke]

Garz - no problem! - terryd - yes, would do that. It will soon be sorted I expect - Good luck!

 

[captainhastings]

Well I took it back and fair play the young lad that was there was going to do it straight away. But I left it there for a coupld of hours because I needed the space in the van. When I picked it up gave it a brief spin round off the ground and it seemed to hold the 6th gear ok.
Going to take it for a spin tonight then I will know for sure.
Seems to be 3 youths working there one has a couldnt care less attitude so I just avoid him and the other 2 seem ok

 

[cyberknight]

Yup you can get that i am lucky in that we have a good LBS who aer expensive and the halfords whee i got the bike from on cycle2 work has a dedicated section with a competent repair guy.

I needed a new free hub on mine this week ( mind you i do hammer the bike over 3000 miles this year with a hilly route ) and they guy at halfords did try to see if it was repairable for free before costing a replacement part

 

[Mr Pig]

Pretty much all of the bikes I've ever bought, no matter what shop, have needed some fetling to get the gears working spot on. It's no big deal.

It's probably not the little screws I think you're talking about. It's more likely to be the position of the derailleur relative to the gears above it. Put the bike in sixth gear. If the chain is not on the sixth gear when the handle bar shifter says it should be lift it and place it on it.

Now adjust the barrel adjuster on the back of the derailleur, the knurled plastic barrel the cable goes into. Turn the adjuster until the chain points straight down from the sixth gear, the piece of chain on the gear and the part underneath it should be in a straight line.

 

[captainhastings]

Well test run went fine changes gear no problems. Bit noisey when its on small cogs front and back I guess because the chain slackens quite a bit.
I tried to get up a short small hill and I was amazed how low the gearing went I was like a hamster peddling away. No resistance at all but the legs still went into melt down when i got to the top
My problem with the mechanics of it all is I am not good with that sort of thing. Cars and DIY I stall well away from. But I better get to grips with the bike lark

 

[Mr Pig]

It's not hard. The spotty oiks in Halfords can do it!

Oh no hang on, no they can't.

 

[youngoldbloke]

Bit noisey when its on small cogs front and back I guess because the chain slackens quite a bit.
Small to small, Big to big not a good idea, as you are moving the chain far away from the ideal chainline, also you may find the chain rubbing the front changer cage as it is pulled so far out of line.

 

[captainhastings]

Bit noisey when its on small cogs front and back I guess because the chain slackens quite a bit.
Small to small, Big to big not a good idea, as you are moving the chain far away from the ideal chainline, also you may find the chain rubbing the front changer cage as it is pulled so far out of line.

Yea sorry that was me I basically had it in low gears which as you say was big cog at the back and small at the front.
Even my daughter has better unstanding of the gears than me
When I heard the extra noise that I dont hear in the bigger gears I checked the chain and it was slacker than when in bigger gears so I put it down to that
Didnt look slack anough to cause a problem or any thing and its rding a treat now