FXSB Breakout Upgrade DIY: Fork Suspension / Tires / Brake -Part numbers, tools, tips
#41
#42
LA Dog, about the gear/pulley mod, I thought I read somewhere where you said the 68t rear pulley fits easily and you could even fit a 70t if you wanted, still plenty of adjustment. I started thinking, what would happen to the final drive ratio if you just did a 70t rear and no change to the front or is that even a viable option? Would the 70t still fit with the 32t front? Maybe need a different size belt?
Last edited by Rocker B; 11-13-2015 at 01:52 AM.
#43
LA Dog, about the gear/pulley mod, I thought I read somewhere where you said the 68t rear pulley fits easily and you could even fit a 70t if you wanted, still plenty of adjustment. I started thinking, what would happen to the final drive ratio if you just did a 70t rear and no change to the front or is that even a viable option? Would the 70t still fit with the 32t front? Maybe need a different size belt?
If you did the full enchilada and 30t front / 68t rear that gets you almost 10% and places the ratios back to the good ol' days before HD had to "tame" the ratios to meet fed and state req's. If you look at belt sprockets and final drive ratios on all HD bikes before say 1995 they were all geared much quicker. Any of the newer HD bikes will benefit from this upgrade. The bagger guys figured it out first which is where I got most of my intel. another member here from overseas had already done this to his BO and shared the correct rear sprocket P/N.
Last edited by LA_Dog; 11-13-2015 at 09:00 AM.
#44
Off top of my head it would be about a 7.7% gain in TQ / ratio reduction. the hard part would be actually finding a 70t that fits the Breakout wheel. the belt *should* still work, but only way to know for sure is to try it. It would be a close call. I think it would be easier to do a 70t with a 30t front- that would be a hoot at almost 13%.
If you did the full enchilada and 30t front / 68t rear that gets you almost 10% and places the ratios back to the good ol' days before HD had to "tame" the ratios to meet fed and state req's. If you look at belt sprockets and final drive ratios on all HD bikes before say 1995 they were all geared much quicker. Any of the newer HD bikes will benefit from this upgrade. The bagger guys figured it out first which is where I got most of my intel. another member here from overseas had already done this to his BO and shared the correct rear sprocket P/N.
If you did the full enchilada and 30t front / 68t rear that gets you almost 10% and places the ratios back to the good ol' days before HD had to "tame" the ratios to meet fed and state req's. If you look at belt sprockets and final drive ratios on all HD bikes before say 1995 they were all geared much quicker. Any of the newer HD bikes will benefit from this upgrade. The bagger guys figured it out first which is where I got most of my intel. another member here from overseas had already done this to his BO and shared the correct rear sprocket P/N.
#49
Hi LA Dog,
can you please confirm we need 49mm intiminators for FXSB? In the Everything Breakout thread you wrote 41mm.
Thanks!
can you please confirm we need 49mm intiminators for FXSB? In the Everything Breakout thread you wrote 41mm.
Thanks!
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SXR (02-03-2024)
#50
Here is a mod I posted on how to add the new super bright red LEDs to your tail light buckets. This is a 20 minute, easy mod with good results.
https://www.hdforums.com/forum/softa...l#post14647450
https://www.hdforums.com/forum/softa...l#post14647450