![TOP END KIT 71.50/+0.50 8.7:1 Yamaha YFM250B Big Bear [SRA] YFM250B Bruin 2WD [SRA] YFM250X Bear Tracker 2WD [SRA] YFB250FW Timberwolf 4WD [SRA] YFB250 Timberwolf 2WD [SRA] 1992-2009](https://omxsports.com/wp-content/uploads/2025/08/wiseco_pk1055_1-1.jpg)
TOP END KIT 71.50/+0.50 8.7:1 Yamaha YFM250B Big Bear [SRA] YFM250B Bruin 2WD [SRA] YFM250X Bear Tracker 2WD [SRA] YFB250FW Timberwolf 4WD [SRA] YFB250 Timberwolf 2WD [SRA] 1992-2009
$254.95
MPN: PK1055 YAMAHA YFM250B BIG BEAR [SRA] YFM250B BRUIN 2WD [SRA] YFM250X BEAR TRACKER 2WD [SRA] YFB250FW TIMBERWOLF 4WD [SRA] YFB250 TIMBERWOLF 2WD [SRA] 1992-2009
1 in stock
Top End Kit 71.50/+0.50 8.7:1 Yamaha Yfm250b Big Bear [Sra] Yfm250b Bruin 2wd [Sra] Yfm250x Bear Tracker 2wd [Sra] Yfb250fw Timberwolf 4wd [Sra] Yfb250 Timberwolf 2wd [Sra] 1992-2009 Mpn: Pk1055
Fitment
Yamaha Yfm250b Big Bear [Sra] 2007 2008 2009
Yamaha Yfm250b Bruin 2wd [Sra] 2005 2006
Yamaha Yfm250x Bear Tracker 2wd [Sra] 2000 2001 2002 2003 2004
Yamaha Yfb250fw Timberwolf 4wd [Sra] 1994 1995 1996 1997 1998 1999 2000
Yamaha Yfb250 Timberwolf 2wd [Sra] 1992 1993 1994 1995 1996 1997 1998
| Weight | 2.5374 lbs |
|---|---|
| Brand | WISECO |
| MPN | PK1055 |
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