Feedback on converting to chain drive with a S&S 124 motor
HDF Community Team
Joined: Aug 2018
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From: New Hampsha
Road Captain
Joined: Nov 2017
Posts: 711
Likes: 143
From: .
Actually stainless steel is the weakest of all the carbon steel bolts. They're actually equal to a plain old carbon steel bolt grade two and cannot be heat treated for higher strength But are the most resistant to weather.... A grade five or grade eight carbon steel bolt is so much stronger in sheer strength... You really shouldn't use stainless... The proper length shouldered grade five or grade eight bolt will be more than sufficient...
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,064
Likes: 7,591
From: Poolville
Found this video on ARP bolt manufacturing pretty interesting...Also on my research I found out that the ARP bolts are superior to grade 8 actually at 170000 lb tensile strength.. interesting...
HDF Community Team
Joined: Aug 2018
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From: New Hampsha
(Duh, I guess that's obvious... Sorry!)
Road Captain
Joined: Nov 2017
Posts: 711
Likes: 143
From: .
Found this video on ARP bolt manufacturing pretty interesting...Also on my research I found out that the ARP bolts are superior to grade 8 actually at 170000 lb tensile strength.. interesting...
https://youtu.be/rwz19dt_5UE
https://youtu.be/rwz19dt_5UE
Thread Starter
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Road Master
Joined: Jul 2010
Posts: 869
Likes: 14
From: Long Island
Many of you said not to go with aluminum sprockets if I converted to chain drive. No one gave any opinions on this Speed King Cycles set up which has another plate that bolts onto the rear sprocket to add some extra strength in order to prevent the bolts from being sheered off https://www.speed-kingscycle.com/col...19041767456866 Right now I have a PM rear pulley with the stock width belt. Some said they still prefer a belt over a chain even with a 124. What are your thoughts on changing out the rear pully to a wider pully so that a 1 1/2 inch belt could be used? I saw some posts in other areas that said a 1 1/2 inch belt was much stronger than my stock belt. There were mixed reviews on which brand to use. Anyone here have any knowledge on a good strong 1 1/2 inch belt brand? And regarding stainless pulleys what do you recommend as well
Last edited by cycler; Feb 28, 2021 at 01:15 AM. Reason: link didnt work
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Road Master
Joined: Oct 2017
Posts: 815
Likes: 292
From: Uptown Bay Area, Cali
Many of you said not to go with aluminum sprockets if I converted to chain drive. No one gave any opinions on this Speed King Cycles set up which has another plate that bolts onto the rear sprocket to add some extra strength in order to prevent the bolts from being sheered off https://www.speed-kingscycle.com/col...19041767456866 Right now I have a PM rear pulley with the stock width belt. Some said they still prefer a belt over a chain even with a 124. What are your thoughts on changing out the rear pully to a wider pully so that a 1 1/2 inch belt could be used? I saw some posts in other areas that said a 1 1/2 inch belt was much stronger than my stock belt. There were mixed reviews on which brand to use. Anyone here have any knowledge on a good strong 1 1/2 inch belt brand? And regarding stainless pulleys what do you recommend as well
As far as the bolt locks and all that extra weight, see how it is correctly done just with bolts here:
https://www.hdforums.com/forum/dyna-...y-bolts-4.html
Even though the above is for pulley bolts, the same applies for chain sprockets.
Hope that helps,
Dave
Cruiser
Joined: Nov 2018
Posts: 166
Likes: 6
From: Chicago
Sorry bro, but I think you are over-thinking this. I believe you stated (sorry so many different posts on this subject) that you don't wheelie or do burn-outs, so a stock 1-1/8" belt is going to be fine. If you go chain, if you want aluminum for light-weight and most hp to rear wheel, PBI sprockets are the way to go. For the best of both worlds, longevity and a little more weight, Supersprox sprockets. For pulleys, stock is the best. You definitely don't want SS pulleys, they would weight a ton.
As far as the bolt locks and all that extra weight, see how it is correctly done just with bolts here:
https://www.hdforums.com/forum/dyna-...y-bolts-4.html
Even though the above is for pulley bolts, the same applies for chain sprockets.
Hope that helps,
Dave
As far as the bolt locks and all that extra weight, see how it is correctly done just with bolts here:
https://www.hdforums.com/forum/dyna-...y-bolts-4.html
Even though the above is for pulley bolts, the same applies for chain sprockets.
Hope that helps,
Dave