38's vs 36's in XR750TT lsr...

[ralt12]

Does anyone have experience with the two sizes in a land speed record context? (with a XR-750TT)?

[slopoke]

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[ralt12]

Will anyone with experience with the two sizes have an opinion that they are willing to share here?

[AHG]

Hello,
   What year is your engine.
Are the intake ports oval or round.
Hopefully oval.
If so 38mm Mikuni flatslides work well.

[ralt12]

I have a '75 that we'll use with 36's, and a '94 that we have a choice to make for. 

[panic]

Those carb sizes were developed on the basis of enough range to break traction whenever the rider needed it. For sustained top end you could use bigger.