Just one problem after another

snaphappyspen

So...we went for a ride today, only 10 miles mainly up hill. We stop for a bite to eat and set off again...theres a big clank and then my crank changes down to the first cog....i put it back to the second one and as im pedalling it looks as though there is a bend in the middle cog...i have only had this bike 2 months or so is there anyway its covered under warranty for this?

Or will a light tap with a hammer sort it out ok? I cant understand what happened to it i wasnt doing anything strenuous on it, simple hills and roads....

stu8975

Unless the ring 'just bent by itself'...then no, you won't get it on warranty....damage from impacts are not usually covered under any warranty.

snaphappyspen

I cant understand when it could have bent as it was fine until we stopped i set off again and it seemed bent, are they easy enough to replace? they seem cheap online.

stu8975

Pretty easy, remove chainring bolts and take off. You may get away with tapping it with a rubber mallet if its not major Fubar.

snaphappyspen

stu8975 wrote:

Pretty easy, remove chainring bolts and take off. You may get away with tapping it with a rubber mallet if its not major Fubar.

Thats what my idea was, i think ill give it some slight encouragement to move back. All i can think of is i may have put too much pressure on it as i went up the hills, i.e. stopping and starting again im a stocky lad and thats all i could think it could be.

Is that possible?

nicklouse

chain rings can look bent even when they are not.

new bike take it back for checking.

snaphappyspen

nicklouse wrote:

chain rings can look bent even when they are not.

new bike take it back for checking.

Yeah i have rung the LBT i got it from as it was due a free check 2 weeks ago and im going to take it down there first before i do anything about it, it seems bent as i look down at it. It clicks at the spot it looks bent and skips rings and tries to drop down a peg

Tank-slapper

Have you checked that the bottom bracket is done up properly?

In any case, take it back to the shop and politely complain.

snaphappyspen

I have checked it today as i have been in London for awhile, and what has actually happened is the middle crank in one spot has moved slightly inwards at one point, i took a hammer to it, this morning and it seems to have fixed the problem now.

cavegiant

That last post was worrying,
Still get shop to check.

If you repeatedly break rings (and are stocky lad like me), you can still get deore steel ones.

much stronger, longer lasting and shift better than fancy alloy ones. bit more weight, but for me the pros outweigh the cons.

Northwind

Aye, and the weight difference isn't much anyway, it's like 40 grams for a middle IIRC. The real winner for me is that they stay fresh for longer, it's not just that they last a long time but they shift like new for ages too. Lovely. XT starts out feeling perfect but can go downhill pretty fast and spends half its life feeling tired.

snaphappyspen

cavegiant wrote:

That last post was worrying,
Still get shop to check.

If you repeatedly break rings (and are stocky lad like me), you can still get deore steel ones.

much stronger, longer lasting and shift better than fancy alloy ones. bit more weight, but for me the pros outweigh the cons.

i took it for a quick spin today and it is still slightly bent, now if i were to invest in a new second for it what would i be looking for i.e. size, make, i need it to be a strong one.

Is it easy to replace? if so how? a link would be helpful.

Dan

twonks

How did you take a hammer to it if you don't know how to replace it?

If it is bent you will need to hammer it against a solid flat surface when it is off the bike totally. Doing so whilst it is on will most likely do nothing except flex the whole assembly with the hammer blows.

Have a read and search on how to remove your crankset and then it should just be a matter of allen ot torx bolts to get the ring off.

TBH I'd have taken it back to the shop unless you have obviously smacked t whilst out riding.

kevolution

Slightly loose chainring bolts can allow a ring to bend under load.
This is a problem created by the shop if this is the case, as they failed to tighten the bolts as part of the PDI.
You should get it replaced under warranty.

If you want to buya new middle ring though, get a Deore M510. They fit most chainsets, and are tough as old boots for £15.

snaphappyspen

kevolution wrote:

Slightly loose chainring bolts can allow a ring to bend under load.
This is a problem created by the shop if this is the case, as they failed to tighten the bolts as part of the PDI.
You should get it replaced under warranty.

If you want to buya new middle ring though, get a Deore M510. They fit most chainsets, and are tough as old boots for £15.

I have been out on it again clocked up 30 odd miles and it seems to have sorted itself out really.

I will take all you suggestions into account though.

As always Thank you!