Hey guys i have the d series upper bracket, according to his site it uses a 3 rib 32 inch belt, however that defly too big. Im using an UR ultra r crank pulley maybe that changes the belt size. Either way its too big for me does anyone know the size ?

 

why not just wrap a tape measure or piece of rope around the pullies to get the measurement..thats what i do...the length in inches is the last three numbers of the part number of the belt.

 

yup seems like 28.5 - 29 will work.

 

Yeah, I have a 30mm belt on mine (with a UR crank pulley) and the belt the tensioner is out almost as far as it will go. I think 28.5 or 29 will be perfect.

 

29.5 is what worked perfect for me. 29 was too small actually