K2 / Proflex Riders Group

General => Tech Forum => Topic started by: loaded on December 07, 2005, 06:32:02 am

Title: cheap 856 Project frame on ebay
Post by: loaded on December 07, 2005, 06:32:02 am
Hey guys,
I was thinking about getting this but I already have enough bikes that don't work!  Looks like an ideal candidate for simons rear linkage modification, ie  No shock/ods and a hairline crack where the strut bolts to the swing arm.

ftp://http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=7202535279&rd=1&sspagename=STRK%3AMEWA%3AIT&rd=1
Title: Re: cheap 856 Project frame on ebay
Post by: Ionit on December 08, 2005, 09:06:42 am
That Frame looks good. I would get it if it wasn’t in Australia. That is truly an ideal frame for a project and cheap to. Us folk should modify more Proflex's. It would be a good reason to keep this site up and  packed with useful Info.

Shout out to the Moderators.
Title: Re: cheap 856 Project frame on ebay
Post by: kiwi on December 09, 2005, 01:50:28 pm
shout out to the moderators...what?
Title: Re: cheap 856 Project frame on ebay
Post by: jazclrint on December 09, 2005, 02:59:53 pm
Hey, I did my part. ;)  [smiley=laughing.gif] [smiley=nod.gif]

Rich
Title: Re: cheap 856 Project frame on ebay
Post by: loaded on December 10, 2005, 09:35:34 am
OK,
it's only got a day left and no one has bit on it.
I feel I have to buy this out of principle as it would be good spares of nothing else!  Even if I can't afford it!!!  Plus I'm now in New Zealand for christmas so will have to get the seller to post it to my unsuspecting housemates.  Who will no doubt berate me for buying yet another piece of outmoded mountain bike history!
::)
How easy are these things to weld up really??  Is there a special type of welding rod to use on this particular alloy?? queue shovlon........
Title: Re: cheap 856 Project frame on ebay
Post by: shovelon on December 10, 2005, 09:53:27 am
From what I gather, the crack is through the main pivot. The welding is easy, but the cleanup may be a bit of work. Someone handy with a dremel could artistically blend and reclaim important contact points.

Once prepared by beveling, and removing the paint, use a heat gun to increase the area temperature beyond 150 degrees F., but not more.

Use 5356 filler rod. Try to get complete weld penetration to the inside. Let cool and start blending the weld obstructions to your liking. Let sit to 7 to 10 days to let the stresses in the metal relax and go ride.

Terry