This one went clunk, grind, judder to a stop.

[Martin Dann]

On the way home from work, takeing a long route, I got to a hill and
stopped due to some traffic lights. As I pulled away I changed down, to
the sound of some very crunchy noises from the back of my bike. I found
that the rear derailuer hanger had snapped. As it was 17:00 I rushed to
the LBS and bought a new hanger.

I have fitted the new one, reinstalled the chain and wheel, however I
find that the wheel has a bent spoke, and is out of true at that point.
The spoke is also a lot looser than any other spokes on the drive side
Is this wheel safe to cycle on, or should I replace it with the rear
wheel from my other bike (same size, number of gears etc.)
I would be unable to replace a spoke tonight.

Martin.

 

[Nick Maclaren]

In article <[email protected]>,
Martin Dann <[email protected]> writes:
|>
|> I have fitted the new one, reinstalled the chain and wheel, however I
|> find that the wheel has a bent spoke, and is out of true at that point.
|> The spoke is also a lot looser than any other spokes on the drive side
|> Is this wheel safe to cycle on, or should I replace it with the rear
|> wheel from my other bike (same size, number of gears etc.)
|> I would be unable to replace a spoke tonight.

It depends entirely on the weight of rim, weight of rider and how
bad the road is. At one extreme, you could ride Westwood rims with
half-a-dozen spokes missing if they weren't all together. But some
super-lightweight ones might crumple the first time you hit a
bump if you did that.

Sorry, but ....


Regards,
Nick Maclaren.

 

[Tony Raven]

Martin Dann wrote on 02/05/2007 23:05 +0100:
>
> I have fitted the new one, reinstalled the chain and wheel, however I
> find that the wheel has a bent spoke, and is out of true at that point.
> The spoke is also a lot looser than any other spokes on the drive side
> Is this wheel safe to cycle on, or should I replace it with the rear
> wheel from my other bike (same size, number of gears etc.)
> I would be unable to replace a spoke tonight.
>
> Martin.

If its just one spoke on a normal (32+ spoke wheel) it should be fine
for a short time till you can get it fixed. Just check the other spokes
though to make sure it wasn't the derailleur going into the spokes and
damaging them first.

--
Tony

"The most savage controversies are those about matters as to which there
is no good evidence either way."
- Bertrand Russell

 

[M-gineering]

Martin Dann wrote:
> however I
> find that the wheel has a bent spoke, and is out of true at that point.
> The spoke is also a lot looser than any other spokes on the drive side
> Is this wheel safe to cycle on, or should I replace it with the rear
> wheel from my other bike (same size, number of gears etc.)
> I would be unable to replace a spoke tonight.
>
> Martin.

You've got a spare wheel, but swapping it to much trouble?

btw if it a steel spoke with a bend in the middle it should be ok to
leave it. But the wheel obviously needs truing
--
---
Marten Gerritsen

INFOapestaartjeM-GINEERINGpuntNL
www.m-gineering.nl

 

[bugbear]

Martin Dann wrote:

Do I detect a passing reference to St. Custards?

BugBear

 

[Simon Brooke]

in message <[email protected]>, Tony Raven
('[email protected]') wrote:

> Martin Dann wrote on 02/05/2007 23:05 +0100:
>>
>> I have fitted the new one, reinstalled the chain and wheel, however I
>> find that the wheel has a bent spoke, and is out of true at that point.
>> The spoke is also a lot looser than any other spokes on the drive side
>> Is this wheel safe to cycle on, or should I replace it with the rear
>> wheel from my other bike (same size, number of gears etc.)
>> I would be unable to replace a spoke tonight.
>>
>> Martin.
>
> If its just one spoke on a normal (32+ spoke wheel) it should be fine
> for a short time till you can get it fixed. Just check the other spokes
> though to make sure it wasn't the derailleur going into the spokes and
> damaging them first.

Also check the derailleur cage isn't bent, and check that the low limit
screw is correctly adjusted so it doesn't happen again.

--
[email protected] (Simon Brooke) http://www.jasmine.org.uk/~simon/

;; killing [afghan|iraqi] civilians is not 'justice'

 

[dkahn400]

On May 2, 11:24 pm, Tony Raven <[email protected]> wrote:

> Just check the other spokes though to make sure it wasn't the
> derailleur going into the spokes and damaging them first.

Certainly sounds like that's what happened, doesn't it?

--
Dave...

 

[Martin Dann]

M-gineering wrote:
> Martin Dann wrote:
>> however I find that the wheel has a bent spoke, and is out of true at
>> that point.
>> The spoke is also a lot looser than any other spokes on the drive side
>> Is this wheel safe to cycle on, or should I replace it with the rear
>> wheel from my other bike (same size, number of gears etc.)
>> I would be unable to replace a spoke tonight.
>>
>> Martin.
>
> You've got a spare wheel, but swapping it to much trouble?

The wheel is from my other bike, which is in pieces at the moment.
However I did swop it when I got in from work tonight.

> btw if it a steel spoke with a bend in the middle it should be ok to
> leave it. But the wheel obviously needs truing

I am going to replace the spoke, and check the rim and hub for damage.

For the other replies, I have check the derailleur, do other spokes seem
damaged, the lower limit screw is OK etc.

Martin.

 

[Rob Morley]

In article <[email protected]>, Martin Dann
[email protected] says...
> M-gineering wrote:
> > Martin Dann wrote:
> >> however I find that the wheel has a bent spoke, and is out of true at
> >> that point.
> >> The spoke is also a lot looser than any other spokes on the drive side
> >> Is this wheel safe to cycle on, or should I replace it with the rear
> >> wheel from my other bike (same size, number of gears etc.)
> >> I would be unable to replace a spoke tonight.
> >>
> >> Martin.
> >
> > You've got a spare wheel, but swapping it to much trouble?
>
> The wheel is from my other bike, which is in pieces at the moment.
> However I did swop it when I got in from work tonight.
>
> > btw if it a steel spoke with a bend in the middle it should be ok to
> > leave it. But the wheel obviously needs truing
>
> I am going to replace the spoke, and check the rim and hub for damage.
>
I'd be inclined to slacken all the spokes to check if the rim is warped
but being held straight(ish) by spoke tension - if it is then it may
caause problems in the future because of uneven spoke tension.