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Pikey's broken hanger and spoke.....


pikey's picture

By pikey - Posted on 11 February 2009

....guess where my spare was???? back at home.

2
georgesadlik's picture

Shame about the hanger, maybe next time Pikey. Thanks for putting this ride on.

Cheers

George.

Alysum's picture

Isn't that the second time you've broken your hanger in a few months? How do you do that Eye-wink

Tom

Buck's picture

Pikey has breaking bike parts down to a fine art. He's particularly good on chains and tubes Smiling

lozza6's picture

legs of STEEEEEL!

pikey's picture

This was the first of three hangers I have broken that have failed via the aid of a big stick sticking me big.
The first two times were on straight smooth unobstructed single trail, one break happened at Thredbo's Cannonball run, not a stick in site.

I believe I am the victim of a mental mechanic problem causing one problem after the other, let me explain. I service my own bike and overall do a good job.
(By the way this is my original theory and is copy righted for the book I write for my retirement) Smiling

The problem starts with a:
1, Worn chain that causes cogs and cassettes to wear,
2, Worn drive trains start to affect the gears, turning them into automatics.
3, Automatic gears tend to want to perform at their best as you climb hills.
4, Climbing hills causes the most pressure on a chain and when automatic gear changing cuts in at that point it can often leave two or three links taking the full load.
5, Full pedal load causes chain break.
6, Chain break repairs means a shorter chain. (I have done three breaks on the one chain)
7, THEREFORE, when I put a new chain on I deliberately leave it a few links longer than I should so as to allow for the breakages.
8, Extra length on the chain causes greater volume of chain slap.
9, A slapping chain has three points of support, a: cassette, b: front cogs, c: the derailleur hanger.
10, What do you think is the weakest link?

I believe that if you ride big and long distances with floppy chains you too could have my problem!

I’m happy to receive advice for the obvious Eye-wink

Pikey

PS: Maybe I’m not such a good mechanic after all Sad

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The Liver is Evil and must be punished Sticking out tongue
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Paul's picture

The solution is simple and simple is the solution.

You need to address the root cause of your problems - twisted chain angles and changing chain angles under load.

If you remove the hanger, the rear derailleur (and therefore the rear cog), the front deraileur (and therefore the front cog) and went single speed all your chain breaking, derailleur wrecking, hanger snapping days would be over.

The solution is simple and simple is the solution.

Andy Bloot's picture

Never mind- I can't read
Hello

Bernd's picture

and you all know what it will be:
Rohloff!! point 6-9 will be done for Pikey's on and from 18.3.09 when I will hand deliver a Rohloff SLT-99 chain!!!!
or you could do it realy simple:
convert to SS !!!!!!!!!!!!! hahahha
Bernd

Alysum's picture

haha love the 10 points break down Eye-wink

Pikey may I suggest you get a bag of

Why not build a chain 100% powerlinks? Be good to know if it's possible and you'd be able to clean it thoroughly Eye-wink

Tom

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