Feedback on converting to chain drive with a S&S 124 motor
Road Master
Joined: Oct 2017
Posts: 815
Likes: 292
From: Uptown Bay Area, Cali
Dave
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Road Master
Joined: Jul 2010
Posts: 869
Likes: 14
From: Long Island
Chain drive
After doing some extensive research I was thinking about going with the speed king cycles kit minus the chain. This set up locks up the sprocket so the bolts dont sheet. Anyone have any input on this vendor and the 9 spoke sprocket,?
https://www.speed-kingscycle.com/col...19041767424098
https://www.speed-kingscycle.com/col...19041767424098
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Road Master
Joined: Jul 2010
Posts: 869
Likes: 14
From: Long Island
I just looked up Speed King Cycles and that 9 spoke is 7075 T6 aluminum. Comes with grade 8 pulley bolts and ARP locking bolts for their locking mechanism. Is 7075 T6 aluminum strong? Or the same as what you have? Any recommendations on a rear sprocket. I was looking at the EK 530DRZ2 drag bike chain rated for 300hp and 11,500 tensile strength as well as the EK 520DR2 drag bike chain rated for 240hp and 10,500 tensile strength. How would those chain run with my set up? Or are they made for drag racing and not your normal use?
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,062
Likes: 7,591
From: Poolville
That's a chain and It's non O-ring.. Don't get it.. D.I.D. makes a chain that's good to 10,600 tensile, O-ring and made in the USA... And only use steel sprockets.. Forget about Aluminum..
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Road Captain
Joined: Nov 2017
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From: .
Yeah dont use aluminum on high torque engines. Seen a lot of dudes that had problems with bolts shearing from the wheel and tried some sprocket locking thingy and they dont help. IMO its just a show off piece and adds rotation weight -> power loss. Use quality bolts. Im using arp, STAINLESS, and havent had any problems... yet. I was careful at the beginning afraid i was gonna shear the bolts with my riding style, but now i dont even worry at all. Black arp bolts are not as good protected as the stainless, so the possibility for them to rust and weakened is bigger.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,062
Likes: 7,591
From: Poolville
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...