O.S .12tz any good???
08-05-2009, 12:37 AM
#76
thats the original bearing, but u can also try normal high speed front bearing with both rubber seals attached. im using it now on my os speed engine. 1 race old, about 2 liters went in and it still hold 
09-30-2009, 10:10 PM
#77
OS TZ12
Last edited by ah_DaN; 06-19-2011 at 10:32 PM.
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