Because bore & stroke are the SAME. Manual:
http://www.mikekekich.com/92-98%20Ti...e%20Manual.pdf
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If it's as Timberwolf, then the clutch fraction plate = 21V-16321-00 (I.D 95mm O.D 125mm) x5
http://chinariders.net/showpost.php?...8&postcount=26 showed a great deal [SR150 (6pcs pack) ¥10.00] from parts wholesaler.