O.S .12tz any good???


Old 08-05-2009, 01:37 AM
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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
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Old 09-30-2009, 11:10 PM
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Last edited by ah_DaN; 06-19-2011 at 11:32 PM.
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