Fork 6 ways damaged just by riding on it!

Workshop tales, trials and disasters.
Maintenance tips, techniques and myths.
Technical discussion, description and outright lies

Re: Fork 6 ways damaged just by riding on it!

Postby Nobody » Wed Jan 02, 2013 7:47 am

il padrone wrote:Tom just needs to take account of the fact that it has a 1" steerer tube, not the much stronger 1 1/8" that MTBs have. It should be fine for routine riding for many years, but doing kerb drop-offs, pulling wheel stands or other tricky stuff will significantly shorten the fork's lifespan. For any sort of stunt riding he'd need a much tougher MTB, preferably a jumps bike as he's a big lad.
Agree. Never had a crack in the steel 1 1/8" forks I have. Although lighter then, I used to give my Giant rigid 1 1/8" fork a hard time in MTB cross country racing. But it's still going 20+ years later. Because I still jump up & down curbs and regularly do stoppies in emergency braking practice at the end of my rides, I don't ride any 1" steerer frames anymore. I'm 82Kg currently.
Nobody
 
Posts: 6649
Joined: Thu Sep 18, 2008 12:10 pm
Location: Sydney

by BNA » Wed Jan 02, 2013 8:02 am

BNA
 

Re: Fork 6 ways damaged just by riding on it!

Postby spirito » Wed Jan 02, 2013 8:02 am

il padrone wrote: .... unfortunately, Speedwells never were much more than average road bikes.



il padrone wrote:BTW I am talking about Speedwells from the late 70s through to whenever the brand finally died out.


I'd agree with you re: 70's but you could have made that clear in your first statement.

Fwiw, I know of at least one frame builder that worked at Malvern Star during the late 40's and early 50's tin Sydney that believed the Speedwells (made by Smith Sons & Ree's just down the road) where clearly better made bikes.

I have been fortunate enough to own a few very good Spedwell's from the 30's to the 60's and some truly stunning Speedwell's have pass through my hands over the years. As I mentioned they also produced some very ordinary bikes as well, they had quite a wide range as was common by many Australian bike manufacturers.
Cranky Jim wrote: God did not invent gears. Men invented gears ... because we are not gods.
User avatar
spirito
 
Posts: 1380
Joined: Fri Nov 28, 2008 1:03 pm

Re: Fork 6 ways damaged just by riding on it!

Postby il padrone » Wed Jan 02, 2013 8:28 am

spirito wrote:
il padrone wrote: .... unfortunately, Speedwells never were much more than average road bikes.



il padrone wrote:BTW I am talking about Speedwells from the late 70s through to whenever the brand finally died out.


I'd agree with you re: 70's but you could have made that clear in your first statement.

My comments needed to be taken in context - stated in relation to the OP's bike - clearly not any sort of vintage Speedwell.

This is not the retro forum :wink:
Riding bikes in traffic - what seems dangerous is usually safe; what seems safe is often more dangerous.
User avatar
il padrone
 
Posts: 18511
Joined: Mon Apr 07, 2008 11:57 pm
Location: Heading for home.

Re: Fork 6 ways damaged just by riding on it!

Postby brentono » Wed Jan 02, 2013 9:42 am

wqlava1 wrote:
brentono wrote:Merits of hard wood inside the steerer tube. :idea:
(though it looks like the rust got to it)
Cheers
:mrgreen:

To stop the steerer pulling away from the lugged crown centre hole?

(And I like your choice of French Blue powdercoat, which I have for my Velosmith as well as Tom's fixie.)


Safety was your priorty.
"the crack between the steerer tube and the top of the fork crown"
Was pointing out, the continuous strain from the original crack, and twisting of the crown,
may have been alleviated with hard wood inside the steerer tube. Brake bolt goes through
crown,steerer tube and the wood, giving support. Also help to prevent sheering.
Was a safety point, and quite utilised back in the day (B.C.=before cyclepaths) on racing cycles.
Cheers
:mrgreen:

Blues Good :D
Image
Lone Rider- I rode on the long, dark road... before I danced under the lights.
User avatar
brentono
 
Posts: 3676
Joined: Mon Jul 13, 2009 12:33 pm
Location: Perth DubyaEh.

Re: Fork 6 ways damaged just by riding on it!

Postby Nobody » Wed Jan 02, 2013 10:38 am

brentono wrote:Blues Good :D
Image
So, do you use hardwood in that Time steerer, or are you more trusting of modern Al?
Nobody
 
Posts: 6649
Joined: Thu Sep 18, 2008 12:10 pm
Location: Sydney

Re: Fork 6 ways damaged just by riding on it!

Postby spirito » Wed Jan 02, 2013 12:34 pm

Nobody wrote: So, do you use hardwood in that Time steerer, or are you more trusting of modern Al?


Apparently, wood has quite a high carbon content (approx. 46 - 55%) ...

http://www.sciencedirect.com/science/ar ... 3403000333
Cranky Jim wrote: God did not invent gears. Men invented gears ... because we are not gods.
User avatar
spirito
 
Posts: 1380
Joined: Fri Nov 28, 2008 1:03 pm

Re: Fork 6 ways damaged just by riding on it!

Postby spirito » Wed Jan 02, 2013 12:35 pm

il padrone wrote:
This is not the retro forum :wink:


The whole of the interwebs is the retro forum (one day) :mrgreen:
Cranky Jim wrote: God did not invent gears. Men invented gears ... because we are not gods.
User avatar
spirito
 
Posts: 1380
Joined: Fri Nov 28, 2008 1:03 pm

Re: Fork 6 ways damaged just by riding on it!

Postby brentono » Wed Jan 02, 2013 1:00 pm

Nobody wrote:
brentono wrote:Blues Good :D
So, do you use hardwood in that Time steerer, or are you more trusting of modern Al?

Buy it (for sale on Mkt Place) and find out :wink: :P :lol:
(as you are probably un?-aware, only works on "vintage" lugged forks)
Cheers
:mrgreen:
Lone Rider- I rode on the long, dark road... before I danced under the lights.
User avatar
brentono
 
Posts: 3676
Joined: Mon Jul 13, 2009 12:33 pm
Location: Perth DubyaEh.

Re: Fork 6 ways damaged just by riding on it!

Postby Nobody » Wed Jan 02, 2013 1:59 pm

spirito wrote:
Nobody wrote: So, do you use hardwood in that Time steerer, or are you more trusting of modern Al?


Apparently, wood has quite a high carbon content (approx. 46 - 55%) ...
So it must be good. Steel has carbon in it too, so Al must be the evil one. :wink:

brentono wrote:(as you are probably un?-aware, only works on "vintage" lugged forks)
Cheers
:mrgreen:
Thanks for the reply. :)
Nobody
 
Posts: 6649
Joined: Thu Sep 18, 2008 12:10 pm
Location: Sydney

Previous

Return to The Shed

Who is online

Users browsing this forum: Yahoo [Bot]



Popular Bike Shops
Torpedo 7 Torpedo7 AU
Ground Effect Ground Effect NZ
Chain Reaction Cycles CRC UK
Wiggle Wiggle UK
Ebay Ebay AU

“Bicycles BNA Twitter
“Bicycles BNA Facebook
“Google+ BNA Google+
“Bicycles BNA Newsletter

> FREE BNA Stickers
> BNA Cycling Kit
cron