Jeff Ryan, the JR in JRI was the student of Bob Fox, owner/designer of FOX shock. Jeff then went on to Penske shocks and after Roger sold Penske shock to an investment company Jeff decided to branch out on his own and start up JRI with others from Penske.
Detroit Speed is using JRI because they are a better shock than afco, and 2 because Mike Maier of Maier Racing introduced JRI to Detroit Speed being they are in the same town.
Last edited by chetly; 10-30-2012 at 02:11 PM.
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