Retrobike Forum Index

It is currently Fri Dec 09, 2016 3:04 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 35 posts ]  Go to page Previous  1, 2, 3, 4
Author Message
 Post subject:
PostPosted: Tue May 01, 2012 7:00 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader

Joined: Thu Mar 05, 2009 3:07 pm
Posts: 5762
Location: Portsmouth
What about the classic Backfire as seen on the cover of the 91 catalogue? If its an early one and you want to choose the right colour it makes sense, very Klein classic but different to the attractive but more common Dolomite.
Here is a link to my faded but original Backfire Attitude, it's actually brighter in the flesh, looks poor on the phone camera. Going to dig out a pic of my black Attitude too!

http://www.retrobike.co.uk/forum/viewto ... sc&start=0

Black.


Attachments:
IMAG2525-2.jpg
IMAG2525-2.jpg [ 428.83 KiB | Viewed 521 times ]
Top
 Profile  
 
 Post subject: Re: 1991 ? Klein Adroit
PostPosted: Wed May 02, 2012 11:28 pm 
Retro Guru
User avatar

Joined: Tue Aug 18, 2009 5:05 pm
Posts: 2070
Location: Boston, MA
kleinrenzo wrote:
mkozaczek wrote:
kleinrenzo wrote:
As well as the carbon fiber strips in the headset it doesn't make any sense to me why??


As to the carbon strip I imagine it had something to do with stress concentrations due to welding thin wall aluminum in the headtube. I don't think that the Adroit had a thinner headtube than the Attitude, at least there is nothing in the literature to indicate that, so why on the Adroit?? Maybe it had something to do with the fact that the height (length) of the headtube was constant from Adroit to Attitude, but the Attitude had the larger down tube and possibly larger top tube putting the welds much closer together creating a thermal stress zone.

As for the post, I imagine that they wanted to use a larger diameter seat tube but there wasn't any seatpost to fit that size on the market. That's they started making their own posts in 1992 maybe?? So, they had to adapt to the 1 1/4 tube to house the 27.2 post. I'll examine it to see ho far the 1 1/4 sleeve goes into the 1 3/8 lower section.



I would understand if they wrapped carbon around the welds but the carbon inside is ineed a mistery.
But the thinner part is a sleeve then? Sure they must have brands that made 31,6 mm seatsposts,but maybe not, i don't know.

Although this Adroit (from your website :wink: ) has got the same narrow bit at the top so it could be that nobody made 31,6 mm seatposts.

Image


From everything I've read, another benefit of adding boron to certain elements of the frame/fork was that it reduced high frequency vibrations which supposedly add to a rider's fatigue over a long ride. In other words, reducing the vibrations improved rider comfort.


Top
 Profile  
 
 Post subject:
PostPosted: Thu May 03, 2012 4:13 pm 
rBoTM Winner
rBoTM Winner
User avatar

Joined: Thu Feb 12, 2009 12:41 pm
Posts: 422
I'm finding this thread a real joy to read. The whole lot of information that is being exchanged is pretty cool. And Jon sure has a whole lot of information since he has to strip those frames he painted.

I have to agree the Gloss Black makes me drool... Damn!


Top
 Profile  
 
 Post subject:
PostPosted: Thu May 03, 2012 4:14 pm 
Retro Guru
User avatar

Joined: Thu Aug 19, 2010 7:09 am
Posts: 2393
Location: SoCal, US
I think for the time being this bike will just hang around, but I'm strongly leaning towards pearl black, like this

Image


Top
 Profile  
 
 Post subject:
PostPosted: Thu May 03, 2012 5:12 pm 
Retro Guru

Joined: Thu Aug 28, 2008 10:34 pm
Posts: 1510
Location: Surrey Hills
bingo!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 35 posts ]  Go to page Previous  1, 2, 3, 4

All times are UTC [ DST ]


Who is online

Users browsing this forum: cherrybomb, Giom6, grarea, PeteC, shogun and 42 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group