R/C Tech Forums - View Single Post - Team Associated RC10 B5m Mid-Motor & Rear Motor Thread
Old 08-01-2014, 06:53 PM
  #6488  
RC.Jon22
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Originally Posted by CaseyAnthonyFan
Dont they come with the B5M kit? Thanks

Kit comes with standard orings, the xrings are grooved and give you an even better seal. I think they're a worthy upgrade, IMO, but it is an optional hop up part.
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