Rear width

Just bought an '07 Badmax. What am I measuring when placing rear wheels/tires on axle. The rr is close to the bearing. Do I measure inside of wheel to inside of wheel? What distance do you recommend??

Thank you in advance.
 

rebsfan4

Member
Just bought an '07 Badmax. What am I measuring when placing rear wheels/tires on axle. The rr is close to the bearing. Do I measure inside of wheel to inside of wheel? What distance do you recommend??

Thank you in advance.

http://www.ultramaxracing.com/owners0.shtml#start

39 1/8 is the recommended RTW from Ultramax on the Badmax. A good start is to place the RR tire 1/8 - 1/4 off of the rr cassette hanger and then set the LR as necessary to achieve the recommended RTW. Measure the RTW from outside edge to outside edge of each tire. That is where the tire comes in contact wuth the racing surface.

This is not ultramax website but, it does show the proper messuring point for RTW on a kart. Just click on any chassis set up page and view where they show to get RTW.

http://phantomchassis.com/chassis-setup-sheets.html
 
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