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PostPosted: Sat Jun 26, 2010 11:05 pm 
Newbie

Joined: Sat Jun 26, 2010 10:36 pm
Posts: 2
Location: Phoenix AZ, USA
Just installed a 29er front end; breathing new life into what is still a beautiful bicycle. The trails in Phoenix are steep and rocky, and now the head tube angle sits at a mere 68 degrees unloaded, finally making my Mantra rideable in this region. [/b] It weighs 12kg with a 100mm RockShox Reba Race fork and Bontrager Race 29er wheel. It rides exactly like I need it to out here. Really can't get enough of this bike!


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File comment: 2000 Klein Mantra 96er - New Upgrade!
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PostPosted: Mon Jul 12, 2010 1:19 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 08, 2009 3:31 pm
Posts: 3949
Location: a mote of dust suspended in a sunbeam
great idea, nice work, and thanks for sharing the pic!


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PostPosted: Mon Jul 12, 2010 7:54 pm 
BANNED USER
BANNED USER

Joined: Mon Mar 15, 2010 11:24 am
Posts: 9923
lovely klein you have there 8) but aargggghhhhhhhh 29er 700cc wheels aarrgghhhhhhhhh you have ruined it, excuse me while I gouge my own eyes out as the pain is unbearable :shock: :lol: :lol:


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PostPosted: Tue Jul 13, 2010 10:05 am 
Retro Guru
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Joined: Tue Aug 07, 2007 12:22 pm
Posts: 2942
Location: Platsa, Messinias, Greece
I'm a big fan of 29" front wheels - lots of advantages and no disadvantages that I've found. I don't know why more people aren't trying it.

That Klein looks very short wheelbase though (or maybe it's just an illusion) - do you have any problems with toe overlap?


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 Post subject: klein 69
PostPosted: Wed Feb 29, 2012 4:26 am 
Dirt Disciple

Joined: Wed Feb 29, 2012 2:18 am
Posts: 17
I have a Klein 69er as well, the 29 in front actually fixes the angle issue Kleins have and no toe clip here. I'm not sure why people are so against it, try it if it doesn't work post it and if it does post it so everyone knows.


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PostPosted: Wed Feb 29, 2012 8:19 am 
retrobike rider
retrobike rider
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Joined: Sun Feb 19, 2012 10:08 am
Posts: 6852
Location: Nth Somerset, UK
They look great.

I really have got to get myself a Mantra sometime soon :shock:


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PostPosted: Wed Feb 29, 2012 11:54 pm 
Retro Guru
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Joined: Wed Dec 14, 2011 2:27 am
Posts: 454
Location: Brasov, Romania
Thank you Mantra owners for your openmindedness! It felt refreshing to see this post, really!

Cheers,
Mx


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 Post subject: Re: klein 69
PostPosted: Sat Mar 03, 2012 11:28 pm 
Dirt Disciple

Joined: Wed Apr 06, 2011 10:37 pm
Posts: 99
Location: Warrington
the0r1st wrote:
.. the 29 in front actually fixes the angle issue Kleins have


What's the problem with the angles?

:?:


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PostPosted: Sat Mar 03, 2012 11:31 pm 
Dirt Disciple

Joined: Wed Apr 06, 2011 10:37 pm
Posts: 99
Location: Warrington
adamdski wrote:
The trails in Phoenix are steep and rocky, and now the head tube angle sits at a mere 68 degrees unloaded, finally making my Mantra rideable in this region.


Could I ask what size frame that is?? You've got a layback post a long way out, so I guess you're a tall chap....


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PostPosted: Sun Mar 04, 2012 2:58 am 
Dirt Disciple

Joined: Wed Feb 29, 2012 2:18 am
Posts: 17
Klein Mantra's have a tendency when going down steep technical inclines to stink bug, going over the handle bars. By putting a 29" front tire with longer forks the angle changes and helps not to stink bug.

Not tall at all but maybe longer than average arm length and the frame is a medium. By having the seat back it allows me to put my body weight further back on steep inclines to prevent stink bugging.

Is you review all the mtbr.com posts regarding Klein Mantras this is a common issue.

I've gone over the bars a few times and learned how to compensate for this and added some customization to help with its weaknesses. With the 29" in front I have yet to stink bug and am able to go faster and take on more technical inclines.


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