SE Racing P.K. Ripper frame ID breakdown

 '79-'84 = Loop tail

 '85 on  = built in seat clamp, non loop tail mid 

 '85       = straight chain stays (only one year before the change) 

 '86 on  = curved chain stays

 '87-'92 = lower Pitbull brake mount with lower brake cable guides 

 '93 only = upper and lower brake cable guides 

 '94 on  = canti or v brake mounts 

 '95 on  = 1 1/8 threadless stem/headset

 '98 on  = 'SE' downtube decal instead of 'P.K. Ripper' 

 '99      = last year for US made products before sale to Another company.