Update: I just got off the phone with some friends in the business whom I've had the rare privilage of briefly working alongside of and learning from...who also happen to be the same guys who set-up the suspension on Lee Shierts record holding Busa and Lee's latest 200+ '05 GSXR1000 project bike...to wit...Max MCcallister and Lee and Martin of "TRAXXION DYNAMICS" and when I ran my front fork sag dimensions by Lee just moments ago he was like.."My god...that's like cruiser suspension sag numbers!!! LOL!!!"...and I agree..and did what I already knew I should do and went ahead and ordered up a set of stiffer front fork springs to facilitate proper front end suspension of my Busa per my 240lb rider weight by selecting Lee and Martins recommendation of 1.1 rate Traxxion OMNI Springs which incorporate a nylon buffer/spacer system much like what is used in top level dirt bike suspension except..made and calibrated for the Busa whereby the nylon buffer slides over the internal cartridge rod and into the ID of the spring itself which entraps the fork spring central to the internal cartridge rod (so it dosen't mislocate center and wind up sqeaking against the fork tube ID) annnnd....prevents the spring from "Bowing In The Middle" when uder great load.
The 1.1 Straight Rate Omni Springs ran me $109...the buffer/spacer kit was $14.95 and the fork spring compressor tool was $29.95...all together about $160 including shipping...but money well spent considering the possible alternative as...when your screaming like a woman cause you came into the curve of a decreasing radius a little to hot is no time to decide to upgrade your Busa's suspenders!!! I'll just tell the wife it's "Cheap Insurance". LOL!!!
But seriousely folks...the good news is that the stock oem rear has plenty of support and travel for spirited riding (provided it's properly adjusted) but...the front suspension on the Busa sux...as not only is the overall usable fork travel shorter than what's on RR type sprtbikes?..but according to the static sag numbers it's also sprung far to soft...for anyone..and imho?...(and Lee's)..together that's a recipe for disaster.
Vman: I had to do something to safely keep up with your huge ultra fast @$$!!! LOL!!! BTW...In speaking with Lee at traxxion he asked if we had any heavy duty riders as Traxxion is trying to come up with proper spring weight dynamics on the busa's rear shock to adequately and proper advise/accomodate the heavier riders amoungst us...I mentioned that your one he11uva rider and looking to do future track days with your busa...and they need to get some baseline numbers by putting a stock oem rear shock spring on their "Spring Dyno"...call Lee at traxxion...tell'em Bill Jinks sent ya..I'm certain they'll be happy to have ya ship'em your rear shock and maybe cut ya a brake...if not at least give ya some great suspenders to match rider weight for you...I've been in the hot pits with Max and his crew at Daytonas CCS championships...they know their pooh.
L8R, Bill.
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