How much is too much.

[markharry66]

Got a second hand Giant defy at tail end of last year, lovely bike can tell its not the usual heavy load bso i am used to riding (sponsered by btwin normally().
Since day one gears have never indexed its hard three trips to local bike shop had replacement cables been re-indexed three times still it wont index or stay in gear on 4th gear down. Recently took it out as was informed it may take some time for gears to bed in (total rollcks of course).

Long story short hit a pot hole near old kent road and have broken spoke looks like new cassette, new chain and new spoke and new wheel.

At what point do you say bike just isnt worth it?

 

[PaulSB]

Got a second hand Giant defy at tail end of last year, lovely bike can tell its not the usual heavy load bso i am used to riding (sponsered by btwin normally().
Since day one gears have never indexed its hard three trips to local bike shop had replacement cables been re-indexed three times still it wont index or stay in gear on 4th gear down. Recently took it out as was informed it may take some time for gears to bed in (total rollcks of course).

Long story short hit a pot hole near old kent road and have broken spoke looks like new cassette, new chain and new spoke and new wheel.

At what point do you say bike just isnt worth it?

Without knowing what you paid for it but based on LBS visits x 3 and the above damage you may well have reached the isn't worth it stage.

 

[markharry66]

Without knowing what you paid for it but based on LBS visits x 3 and the above damage you may well have reached the isn't worth it stage.

only £175 second hand, probably £70 ish at local bike shops for repair

 

[Drago]

How much would it cost you to buy a replacement machine of comparable spec and quality that doesn't require work of any kind?

That's how much the "it's not worth it" point is set at.

Don't be like those fools with an older car that fails an MOT requiring £800 of work to fix satisfactorily who then saddle themselves with £400 monthly payments for 60 months on a new car because "it's more than it was worth."

 

[markharry66]

How much would it cost you to buy a replacement machine of comparable spec and quality that doesn't require work of any kind?

That's how much the "it's not worth it" point is set at.

Don't be like those fools with an older car that fails an MOT requiring £800 of work to fix satisfactorily who then saddle themselves with £400 monthly payments for 60 months on a new car because "it's more than it was worth."

yeah was looking at Boardman bikes but like the defy so 200 seems cheaper and better option to get it fixed not that it will ever get sold ever as will ride it into the ground before looking at something new.

 

[Punkawallah]

Is the derailleur straight?
£200 for a 2nd hand Giant seems reasonable. Obviously haven’t laid eyes on it, but my FLBS (only sells 2nd hand) would put that sort of price on one.

 

[markharry66]

Is the derailleur straight?
£200 for a 2nd hand Giant seems reasonable. Obviously haven’t laid eyes on it, but my FLBS (only sells 2nd hand) would put that sort of price on one.

Going off to local bike shop this week to find out

 

[markharry66]

Going off to local bike shop this week to find out, just seems strange only slips on the one cartridge gears change okay 3rd and 5 th gear work fine just the 4th that slips tried indexing etc myself still does it

 

[Marchrider]

Take the cassette off and disassemble, reverse (flip over) the fourth gear so that it now runs backwards (you only have to file one little bit of metal away). and reassemble

buy a new spoke

cost of repairs about a fiver

 

[markharry66]

Take the cassette off and disassemble, reverse (flip over) the fourth gear so that it now runs backwards (you only have to file one little bit of metal away). and reassemble

buy a new spoke

cost of repairs about a fiver

Thanks Marchrider will give it a go

 

[Big John]

Bog standard cassettes are pinned. Expensive ones come with separate sprockets and spacers. Good luck with disassembling it. I'm not even sure that would work anyway.

 

[Marchrider]

My theory being that if the person before you spent most of their riding in 4th then it is probably just that cog that is worn down, flipping them over gives a new lease of life (the chain is no longer pulling on the same ramp)
and these cogs work fine running backwards, 3rd 4th and 5th re all currently reversed on my bike

Do note - if you disassemble the cassette (grind the rivet heads off) when you put it back on the freehub loose (no need to re-rivet) you will have to make sure you tighten the locknut to its full specified torque (40nM ?) if you don't it will soon rattle, and 40nM is very tight!

Bog standard cassettes are pinned. Expensive ones come with separate sprockets and spacers. Good luck with disassembling it. I'm not even sure that would work anyway.

have been doing it for years, just grind the heads of the 3 long rivets and that's it apart, and interestingly 4th gear is always the first one I need to flip, and I have never known it not work.

and the really weird thing is, if you run the cog, lets say for 500 mile backwards, you can flip it to the correct direction and it as if it has been repaired. it is all to do with the profile of the curved ramp the chain is pulling against, running it backwards must somehow wear this to a better shape?

 

[Ajax Bay]

40nM is very tight!

Dimensionless!

 

[Marchrider]

Dimensionless!

40 newton meters - i think that is what it says on the lock nut, or is it 45?

i think it is Nm rather than what I said nM, which may be nano meters ?

and nano meters are small, 1/1000 of a micron - thats little isn't it , our high precision lathe only goes down to 5 microns, and that is beyond tiny, inconsievely small

 

[Profpointy]

If the frame is OK, and the right size for you, then everything else is just consumables really. It's not like a car where you get to a good-money-after bad stage where everything starts to fail.

Wheels, gears, chains, cables etc all have a finite life. No real need to replace the whole bike.

The only caveat to this is if you think you want to significantly upgrade components but the frame is nothing special. In this case it might be cheaper and easier to start again with a complete new bike.