Good morning kiddies, here is today's quiz.

Q: What do you get when you cross a bent 5mm thick piece of steel rod of length 300mm with a 700mm bicycle wheel rotating at almost 300 rpm?

A:

(Note: I have already removed one of the spokes so I can purchase new ones - I already have some spare spokes for the cassette side at home)
So, I'm riding down the M4 eastbound and I am about 1Km west of Homebush Bay drive when BANG, CLUNK, CLUNK, BANG SKID... I had gone over a nicely camouflaged piece of steel rod which tangled in my rear wheel. Two spoke ends (the bit that the spoke screws into) snapped, some very deep scratches in my frame, and some marks in my rim.

My problem now was how to get into the office. I initially thought to ride slowly to Strathfield station but thought I would not be about to get my bike into a train as they are all very full by the time they get to Strathfield. My only other option was to massage the remaining spokes to get the wheel to spin again (I had to disengage the brake calipers completely). This took about 5 minutes and I was off. I was very nervous as the wheel was clearing the frame by about 5mm. But I made it and I will soon be purchasing some new spokes.

This afternoon though I will be training it to Blacktown and enjoying a nice 5Km ride home before I get to fix my bike again.

There is nothing better than to be face a challenge and overcome it.

Views: 115

Comment by Ma Dame Vélo on March 11, 2009 at 7:53am
Well, commiserations and congratulations. Glad you can put a positive "spin" on an unfortunate bit of luck Peter. Please go and buy a lottery ticket. You need a change in fortune. :-)
Comment by Neil Alexander on March 11, 2009 at 4:08pm
That's amazing, Pengy! Not that the wheel broke (Well, duhh!!) but that you worked out that it was going around at 300rpm at the time. Expressed like that, it seemed to us impossible. But we did the math (OK our Kubuntu-based but ill-named SpeedCrunch calculator on this tediously slow laptop did the math) and we came up with a very believable 39.6km/h. Lucky you didn't come off.
Comment by Ma Dame Vélo on March 11, 2009 at 4:16pm
Yeah, that PeterH is one smart penguin.
Comment by Neil Alexander on March 11, 2009 at 4:28pm
He can fly, too. (But, shhh, don't let on.)
Comment by Peter H on March 12, 2009 at 6:28am
My luck, like my wheel is in pieces on the floor. Last night I was not able to get the wheel true without causing a flat spot so I decided to remove all the spokes. There were several other spokes that had stretched about 3mm so they will be replaced.

This will be a learning experience if nothing else.
Comment by Ma Dame Vélo on March 12, 2009 at 7:34am
Well, look on the bright side Peter, at least you can fly...:-)
Comment by Peter H on March 12, 2009 at 7:46am
Oh yes, and I did have fun flying to work in the train... It's days like that this that make me enjoy riding.
Comment by Neil Alexander on March 12, 2009 at 7:52am
Hmmm, sorry to have to say this but, if the spokes have "stretched" that much, we don't like your chances of ever getting the rim round again. Wheel building can be frustrating enough even with brand new everything.
Comment by Peter H on March 12, 2009 at 8:08am
I compared the existing spokes with the new ones I purchased. The spokes on the cassette side are 290mm and the other side are 292mm. The stretched ones were about 295mm (there were three of them). As you can see in the picture there is one spoke that is visibly bent.
Comment by Duncan on March 12, 2009 at 8:26am
Bah humbug to the 'never round again', I say.

I have been riding on a front rim that was severely taco'd by an errant basketball (yes, bike paths are great basketball courts, apparently). I took it apart, flattened it back out, then put it back together. It's been fine for over a year now.

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