2007-2008 Yamaha Phazer Venture-Lite 500 Factory Service Manual, Page 77Get this manual
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GEAR SELECTION 8 Weight rivets
90386-09001 8FG-17624-10 15.0 (0.59) VESPEL TP-8549
(14.6 mm) Grooved
90386-09001 8FG-17624-20 15.6 (0.61) VESPEL TP-8549