Welcome to the new and improved Proflex / K2 Tech Forum!
Hey!That's nice to hear...I do know that I have some light reduction to do on the spindle end ODs, as the bearings were a tight fit when I test fitted them. A temperature differential would probably take care of it, but I didn't want to have a hard time disassembling it the next time around. Sound like the right approach to try to reduce the diameter a thousandth or so?Thanks!- Doug :-)
Hello all,I installed my sealed bearing upgrade this weekend and WOW, there was a noticeable difference. With the Risse Astro 5 installed on the rear I really noticed a reduction in stiction...but there's an issue with my Astro 5 right now, so mid-ride I swapped it out with the stock Noleen unit, which also seemed to perform better. As per Terry's suggestion I chucked the spindle in my drill press and applied a fine sandpaper to the spindle ends while spinning to make the bearing installation a little smoother. Worked like a charm :-)I'll upload a few pictures when I get a chance. Thanks again to everyone who created the tech specs and installation instructions!- Doug :-)
Is this system aplicable to the 955 ?
Update to my Oz sealed bearing conversion.All has been well since I installed it, but lately it had developed a creak which I mistook for the cable ferrule. Over the last couple of months it got loud enough that I carried an oiler with me. On my my ride last weekend it came back and pinpointed it to the swingarm pivot. Thinking the worst I took it apart but could find nothing, but did notice a bit of flaring where the large diameter on the shaft flared where in contact with the inner washer. Ah-ha, looks like the washers were a tad loose on the pivot flange insert and moving ever so little but when dry conveyed a creak thru the frame.I ran it up to the shop and turned 1 mm off the length of the large diameter and 1 mm off the overall length. I think that some frames may be slightly different and mine was a bit narrower. See the original diameter lengths on this drawing. The large diameter length is now 52.8mm, and overall length is now 83mm. Terry
I am liking the look of this conversion for my 855 and the newest addition to the shop too. Upon disassembling the 856 pivot, I found that the through-hole is not concentric in the frame pivot. ??
Simon, your conversion is great in terms of performance. How much weight does this mod add?