First off from what i have found out 2013 & 2014 Breakouts shipped to Australia all have a 132 Tooth Belt Part No: HD40059-09A
My bike is a 2014 CVO Breakout & i have fitted a 30 Tooth Sprocket to the front & a 70 Tooth Sprocket to the rear.
Going off the Gearingcommander web site ( Picture Attached ) with the standard 132 Tooth Belt & standard pulleys the Belt / Sprocket length is 576.01mm
With a 133 Tooth Belt & the 30 / 70 Pulley Swap the Belt / Sprocket Length is 576.95mm
With a 134 Tooth Belt & the 30 / 70 Pulley Swap the Belt / Sprocket Length is 584.06mm
My wheel is hard foward with the 132 Tooth Belt & the 30 / 70 Pulley swap and with the 260mm Tyre its rubbing on the plastic inner liner.
a few rough measurements i have calculated for the different Tyres are as follows:
240/40 Has a side wall measurement of 96mm
264/40 Has a side wall measurement of 104mm
Thats a gain of at least 8mm in height & that's not allowing for the fact that the Tyre is squeezed onto the standard 8" Rim.
Gearingcommander web site lists the Tyre circumference as follows:
240/40-18 = 2039.5mm
260/40-18 = 2089.8mm
2039.5 / 3.14 = 649.52mm Diameter
2089.8 / 3.14 = 665.54mm Diameter
Difference here is 16.02mm same as my calculation above once this is divided by 2
Given that the standard 132 Tooth Belt & standard pulleys the Belt / Sprocket length is 576.01mm between the center of the front sprocket to the center of the rear sprocket.
To keep the Tyre the same distance from the plastic guard liner I would need to add 8.0mm to the measurement & end up with somewhere around 584mm center to center.
am i better off with a 133 tooth belt or go to a 134 tooth belt.
Be interested to hear from others what belt they have run with a 30 / 70 pulley swap & also what size rear Tyre & if their bike is standard suspension or if it's been lowered.
01-30-2024, 12:17 AM
