2.9 whipple belt size?

[mcallister]

Well I just ordered a 2.9 whipple with all the supporting mods and I'm not sure what size belt I'm going to need. I'm going to run the 3.5 pulley on the whipple, stock lower, and division x 4 piece idlers. Anyone have an idea what size I should get?

 

[mcallister]

Anyone?

 

[BO TY KLR]

are the idlers all 90mm?

 

[mcallister]

3 are 100mm and 1 is 90mm

 

['03snkbt]

Whipple 3.5 + 90mm tensioner + (3) 100 idlers = 77.2 gates or Goodyear gatorback