macnum gearing

[davepenny]

hi guys going to start raceing the macnun can someone let me know if i would be better useing the 86 spur or the 80 spur will be useing a 8.5 thanks

[Battle_axe]

hi guys going to start raceing the macnun can someone let me know if i would be better useing the 86 spur or the 80 spur will be useing a 8.5 thanks

The 80 is best to get the weight as close to the Axle as you can