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PostPosted: Sat Nov 24, 2007 11:53 pm 
The Guv'nor
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Joined: Sun Jul 03, 2005 11:19 pm
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Location: Retrobike HQ
anyone know what bearings klein used in their MC-1 headsets? They look standard enough but have no marking.

Also looking for glue / locking compound. I've heard loctite RC680 is the one. Anyone confirm this?


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PostPosted: Sun Nov 25, 2007 12:02 am 
BoTM Winner / PoTM Winner
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http://forums.mtbr.com/showthread.php?t=358651

also a grip of klein links here
http://forums.mtbr.com/showthread.php?t=339257


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PostPosted: Sun Nov 25, 2007 12:43 am 
Klein Guru / BOTM Winner

Joined: Fri May 05, 2006 6:06 pm
Posts: 984
Location: Houston TX
John wrote:
anyone know what bearings klein used in their MC-1 headsets? They look standard enough but have no marking.

Also looking for glue / locking compound. I've heard loctite RC680 is the one. Anyone confirm this?


the bearings are Klein specific, not standard at all. they might be still available through your friendly Klein/Trek dealer. part no. 971604 2.0" outer diameter. they are the same top and bottom on the MC1 frames.

yes, Loctite RC-680

http://www.loctite.us/int_henkel/loctit ... CH125B.pdf

most important is that the bearing seats in the frame and on the fork are perfectly clean and that there are no scratches etc. otherwise the bearings will get stuck. put the bearings and ideally also the fork into the fridge for a while so that they shrink. take them out, wipe them dry, apply the Loctite and carefully put them into the frame. heating up the frame with a hair dryer helps too. don't forget to mount the bottom seal and then apply some Locite on the bearing seat of the fork and push it in. if everything is perfectly clean it does not need too much force to mount the fork.

alternatively you can mount the seal and the lower bearing on the fork and then press fork and bearing into the frame.

Carsten


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