Final update on knuck modding, April 2012 - You can obtain great durability simply by using RPM knucks and having them bored to accept 8x16x5 bearings. I will do the boring at no charge. Just send me your parts. But be sure and email me before sending anything!!! Also, be aware that there may be some fitment issues with certain later versions (such as the 8.0), and you may need additional parts.

Here's a web page (at the MGT Forum) describing the process that I will do for FREE: http://www.ultimaterc.com/forums/showthread.php?t=86129

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