OS Front Bearing #23731020


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OS Front Bearing #23731020

This is a replacement main crankshaft front bearing. The bearing measures 7x19x6mm,Made by NTN in Japan


  • OS B2101 Speed/XZ-B/XZ-B Speed/XZ-B Speed II/ XZ-B V2 ABC VII

  • OS AD/AD-2/Ronda/2104/2103 type-R/Ongaro edition/TY-2

  • Full line of ALPHA .21 engines.

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