4B11T ACL Race Bearing Kit

4B11T ACL Race Bearing Kit (1T1237 4B1236H 5M1237H)

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They are an H-Series (harder material and more clearance) race bearing. These will fit in standard 4B11T rods and mains.These can be used in standard rebuilds or all out race motors.HX Bearing give 0.001" extra clearance. ...
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