Hi, I recently picked up a 98 vmax xtc, looking around for a heavier spring for the rear shock and am striking out....I am a larger fellow and would like to beef up the suspension. All of the part numbers I have found for the heavier rear spring from yamaha are non existant on the internet. wondering if anyone has used a helper spring or possibly a spring from a venture. they mention in the suspension tuning video yamaha put out that the springs for the steel body shocks wont work for the aluminum body shocks so i think the venture spring is a no go. thanks in advance.