Help with dome size

[TeRC_FK]

I'm rebuilding my top end and need new domes. Below are the specs of my bike. I had 20cc domes previously and would like to know if I need to go with a different size. I've done searches and posted to other topics but haven't gotten any advice, which is why I'm starting a new topic.

• DUAL 35MM PWK
  
• VFORCE REEDS
  
• MILD PORT
  
• PRO DESIGN COOL HEAD
  
• TOOMEY T6
  
• ELEVATION AROUND -60FT; GLAMIS AND SUPERSTITION
  

[n2otoofast4u]

call a builder

[possum]

20s are fine. if u go smaller u will get into race gas. all depends what u want. even 21s would be good and safe.

[TeRC_FK]

Thanks for the advice. I probably go with 20s and run a race/pump gas mix to be safe.

[possum]

u will be fine just dont run it lean out there in glamis. thats where i ride.