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Old 02-03-2020, 10:33 AM
  #8  
sosam117
 
Join Date: Nov 2009
Location: Plainfield,IL
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Chris,
I purchased the .049 mufflers for my Cox Golden Bee (circa 1974) and Cox Baby Bee(circa 1978).
I have a TD 09 and I'll measure the cylinder for you.
The head (cylinder diameter ) of the .09 measures .78 inches (19.81mm)

Hope that also helps you to decide which muffler to purchase?

sosam117

Last edited by sosam117; 02-03-2020 at 10:38 AM.