Showa SFF Coil Spring Fork Tech Specs

Showa SFF Gen II Fork Specs

• Fork damper in left fork
• Larger midvalve piston
• Redesigned and larger free piston
• Subvalve is now stock (Similar to KYB & MXT subvalve)
• Fork spring in right fork
• Fork spring is shorter and lighter than Gen I
• Spring cartridge has been redesigned from Gen I
• 48mm fork tubes
• Production forks on 2013 Kawasaki KX250F, 2013 Suzuki RMZ250, & 2013 Suzuki RMZ450

Showa SFF Gen I Fork Specs

• Fork damper in left fork
• Fork spring in right fork
• Lighter than previous model Showa twin chamber fork
• 47mm fork tubes
• Fork spring preload can be adjusted via top cap clicker
• Click here for how to measure SFF fork spring preload
• Midvalve piston diameter has been increased to 27.5mm
• Production forks for 2011-2012 Kawasaki KX250F

• Fork dyno testing has shown an internal pressure imbalance
• The MXT Fork Subvalve was developed to solve this problem
• 6 clickers of preload adjustment is equal to 1mm of spring preload

 

Showa SFF Gen I Fork Parts

 

MXT SFF Fork Subvalve

 

Showa SFF Fork Tools

 

• Race Tech Spring Compressor