Bike ITBs - Size

  1. #1
    what size are the following itbs

    gsxr 750 / 1000
    cbr (anything that is equal the above 929/949??)

    just needing to know sizes for next set so I can get appropriate trumpets
  2. #2
    What size are you after, Trumpet diametre/where the trumpets/stacks locate?

    Can get some dimensions tomorrow for you man. Would go out now, but its a bit chilly in the barns.
  3. #3
    Look for sprintboy29, thats colin satchel, say what they are for and he can turn them down to suit.


    Gsxr are 42mm tapering to 48 iirc.
  4. #4
    Do you mean the diameter of the bodies? If so it depends what model they are off of.

    Gsxr 750 and 1000 years 2000-2003 are 42mm.

    Gsxr 750 pre-2000 are 40mm.

    There are more sizes, ill try find them tomorrow.
  5. #5
    Later GSXR 1000 are 44mm
  6. #6
    I believe 2007 CBR1000RR to be 46mm across the throttle plate, but I will double check when I am next home.
  7. #7
    Quote:
    Originally Posted by ed-bradley View Post
    What size are you after, Trumpet diametre/where the trumpets/stacks locate?

    Can get some dimensions tomorrow for you man. Would go out now, but its a bit chilly in the barns.
    Dan just looking at what size the itbs are since they are the more commonly used ones then was going to buy trumpets to suit, but probably best just take pictures of what you got and let me know

    Quote:
    Originally Posted by welshpug View Post
    Look for sprintboy29, thats colin satchel, say what they are for and he can turn them down to suit.


    Gsxr are 42mm tapering to 48 iirc.
    seen him on ebay cheers

    Quote:
    Originally Posted by Bobo0907 View Post
    Do you mean the diameter of the bodies? If so it depends what model they are off of.

    Gsxr 750 and 1000 years 2000-2003 are 42mm.

    Gsxr 750 pre-2000 are 40mm.

    There are more sizes, ill try find them tomorrow.
    yup thats the ones inner and outter diam

    Quote:
    Originally Posted by Sandy309 View Post
    Later GSXR 1000 are 44mm
    thanks Sandy

    Quote:
    Originally Posted by yr51ocw View Post
    I believe 2007 CBR1000RR to be 46mm across the throttle plate, but I will double check when I am next home.
    ok cheers floppy hair rock god
  8. #8
    just to bump this up are there any bodies that are bigger than 45mm?
  9. #9
    Jenveys, certain Triumph and 1300 bikes.

    what are you building that requires larger than 45mm?