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856 weaknesses
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Topic: 856 weaknesses (Read 2782 times)
mizunole
Apprentice
Posts: 90
Karma: 0
856 weaknesses
«
on:
January 17, 2009, 01:46:49 am »
Just on a whim other than no disc break bosses, what are the structural weaknesses of the 856 frame?
Seat stay strut looks a little weak to me. But is that a real load bearing part? I have often wondered do I really want to put that much confidence in the threads of a bolt connecting the shock.
why is there a gusset on the drive side swing arm? (may be obvious)
Why no gusset on the down tube?
Why the staying power?
If they weren't durable, they wouldn't have been around so long (BTW anyone catch the Haro Extreme
http://cgi.ebay.com/HARO-EXTREME-XT-24-SPD-RST-19-5-INCH-FRAME-SIZE-LARGE_W0QQcmdZViewItemQQcategoryZ98083QQihZ014QQitemZ330301315815QQrdZ1QQsspagenameZWDVWQQsalenotsupported
listed on ebay? I used to drool over these reading Mountain Bike Action.)
«
Last Edit: January 17, 2009, 01:54:27 am by mizunole
»
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shovelon
Global Moderator
Guru
Posts: 2229
Karma: 16
Down there? DOWN THERE!???
Re: 856 weaknesses
«
Reply #1 on:
January 17, 2009, 08:11:31 am »
The only frame issues I have dealt with are small cracks at the swingarm mount on the frame. There is a hole just below the pivot that flexes and can crack. I have repaired 3 so far. The swingarm gusset was a response to cracking from pedaling stress(although I would never be able to pedal that hard
).
I have wondered myself why those shock bolts don't shear.
«
Last Edit: January 17, 2009, 08:23:42 am by shovelon
»
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OzM,(Ozzie)
K24000,(Red)
957small,(Shorty)
957Large,(Monty)
956 LE,(Peirce) <Sold>
Offroad "Proflex" (Serrota),
Serotta CST titanium softail
McMahon FS
orange
Administrator
Guru
Posts: 1496
Karma: 24
Re: 856 weaknesses
«
Reply #2 on:
January 17, 2009, 09:03:48 am »
they do - I have had 3 go between myself and a friend, but that was on an 857 to be fair. You need a really tough bolt up into the shock shaft.
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'95 855
'91 Diamond Back Topanga (project: 1st MTB)
'06 Surly Karate Monkey 29er
Custom built Edelbikes 29er #1104
Old Proflexer
Guru
Posts: 579
Karma: 9
Re: 856 weaknesses
«
Reply #3 on:
January 18, 2009, 06:48:49 am »
abused 'krusty' for years and never had an issue -
OP
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Yeah, they don't make 'em anymore - it's a classic - - -
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