Top End

• Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication • Lightweight piston with a tight piston wall clearance for a quieter running engine • Skirt coated for reduced friction and improved break...

Spring kit is designed with increased spring rates and high lift compatibility compared to the stock springsCompatible with boosted or turbocharged applicationsCNC-machined titanium retainers and Cr-Si dual springs provide valvetrain control at high rpms...

• Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication • Lightweight piston with a tight piston wall clearance for a quieter running engine • Skirt coated for reduced friction and improved break...

New replacement cylinder headInclude cam caps and cam cap boltsInclude C630 (nickel/aluminum/bronze) valve seats and guidesCompetition valve jobShortened valve guides to accept higher lift camsUnshrouded combustion chamberBlended bowl seat to portStock...

Top End Piston Kit - 66.35 Mm - Suzuki Rm250 Vtk22854B-1 Suzuki -- RM 250 -- (2007, 2008, 2006)

Top End Piston Kit - 63.95 Mm - Ktm 200Exc/Mxc Vtk22926B KTM -- 200 MXC -- (1998, 1999, 2002, 2003, 2000, 2001); KTM -- 200 EXC -- (2000, 1998, 2002, 1999, 2001)

Top End Piston Kit - 66.35 Mm - Suzuki Rm250 Vtk22854B Suzuki -- RM 250 -- (2003, 2005, 2004)

Top End Piston Kit - 63.96 Mm - Ktm Vtk22926C-1 KTM -- 200 XC -- (2007, 2006, 2009, 2008); KTM -- 200 XC-W -- (2011, 2009, 2010, 2012, 2016, 2006, 2008, 2013, 2015, 2007, 2014); KTM -- 200 EXC -- (2004, 2005, 2003)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Yamaha -- YZ 125 -- (2014, 2011, 2010, 2015, 2016, 2012, 2013, 2009, 2001, 1999, 2004, 2000, 1997, 2008, 1998, 2002, 2003, 2007, 2006, 2020, 2005, 2017, 2021, 2018, 2019)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Kawasaki -- KX 125 -- (2005, 2006, 2004, 2007, 2003)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Kawasaki -- KX 125 -- (2007, 2003, 2004, 2006, 2005)

Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005")...