Since I happen to know there will be (at least) 6 people fitting WP 4860 forks to various airheads in the VERY near future and since I know Solo doesn't want us cluttering up his thread with our BS, I thought it'd be a good idea to have all the USD folks solve our problems in the same spot. I'm using "open chamber" 4860s off of a 2006 KTM 250SXF. They'll be going on a reinforced ST frame by way of HPMGuy's triple clamps. I plan to build my own front wheel using a 1.85"x21" rim on an aftermarket KTM hub and use the stock KTM master cylinder and caliper. Here's a good writeup of the differences between various years and models of 4860 (and 4357) forks as well as servicing data and some relevant info about fitting them to other bikes. http://crossroadz.com.au/F650GS/Modifications/Forks/ForkNotesWP.pdf A good service manual available free from KTM: http://slorider.com/KTM/manuals/WP4860MXMA2003.pdf Two videos detailing all the considerations of fitting 4860s to the F650 (but plenty of relevant info): http://www.garagenight.tv/ep-11-ktm-forks-on-a-bmw/ http://blip.tv/garage-night/garage-night-episode-12-ktm-forks-on-a-bmw-part-2-2375953 Anyone else?