K2 / Proflex Riders Group

General => Tech Forum => Topic started by: kondilemma on May 03, 2007, 05:06:29 am

Title: JBWeld vs real welding
Post by: kondilemma on May 03, 2007, 05:06:29 am
Hi there--

Has anyone used JBWeld to attach a homemade disc brake tab to a Noleen linkage fork?   I never used the stuff, but remember a high school friend who used it to hold together his '83 Mustang's rear pinion gears.  And man, did he drive the **** outa that car, even after the patch job.

-Brad
Title: Re: JBWeld vs real welding
Post by: orange on May 03, 2007, 05:50:36 am
sure somebody did it here - was it Old Proflexer?
Title: Re: JBWeld vs real welding
Post by: Ziggy on May 03, 2007, 09:23:57 am
Bodging brakes.  Mmmmm sounds like a great plan... (http://idriders.com/newforum/YaBBImages/shocked.gif)

Maybe it'll work, but I sure as heck wouldn't trust it!  Good luck... :)
Title: Re: JBWeld vs real welding
Post by: jimbo on May 03, 2007, 11:36:19 am
A friend of mine, retired shop teacher, extended a Rockshox Judy fork to fit his home made 29" mtb.  He calculated the tensiol (sp) strength of the bonding and how much force the fork would be subject to during the cycling of the travel.  He's had this setup for at least 4 years and rides every week.  

His homemade 29" is a steel frame which he purposely made the ugliest bike you every saw so no one wants to steal it.

The old Judy fork has a sleeve on both legs which extends the legs.  There must enough overlap on the sleeve to the fork legs for the JB to hold.

Wayne is old as dirt and scoffs at our FS bikes, fancy jersey and mtb shorts.  He just shows up in a tee shirt and cut off jeans.  When he's not mtbing he rides his longboard tanker.  
Title: Re: JBWeld vs real welding
Post by: willem on May 04, 2007, 03:10:48 am
Works great - unfortunately I'm too burned out from posting instructions to do it again.
If you look under my gallery - or maybe it was my old gallery "will" - there are some pics.

If you're serious, you'll need some 1/4" 6000 series aluminum plate and a template. If you're really fired up, check the forum for old posts.

Never failed on two different sets of my forks.
Title: Re: JBWeld vs real welding
Post by: whisperdancer on May 04, 2007, 04:14:40 am
You can check it on the how to's section:

http://idriders.com/proflex/tech/tech_op2.shtml

and come up with something like this:

(http://idriders.com/proflex/gallery/images/XlinkAdapter5.jpg)