HD new lefty bearing : V-Twin Forum: Harley Davidson Forums

tarheelrdr · 09-10-2009, 10:30 AM

Has anyone tried using the lefty bearing in the bottom end instead of having the Timken conversion installed?
Thanks
Tim

Coolmaker · 09-10-2009, 04:07 PM

Cladnbal just did...

TXCHOP · 09-10-2009, 07:49 PM

Yup, theres a couple threads here about that very thing. Dont it myself 2 times now. ONe build was at 118tq and the other at 120. Neither have even flintched.

Mtclassic · 09-10-2009, 08:12 PM

Quote:

Originally Posted by TXCHOP

Yup, theres a couple threads here about that very thing. Dont it myself 2 times now. ONe build was at 118tq and the other at 120. Neither have even flintched.

I have not gotten a new screaming eagle catalog yet, what does it entail? split the cases and machine work?

TXCHOP · 09-10-2009, 08:18 PM

Its just a replacement "stronger" roller bearing. Looks the same or similar as stock.

BVBOB · 09-10-2009, 08:35 PM

Did a 4" stroke 107 all bore build last spring, had Hyperformance true and weld the crank and do the case boring, used the "leftys" on both sides, the bike made over 120 torque and has been ridden pretty hard all summer with no issues.

Geezer-Glide · 09-10-2009, 08:47 PM

If I recall, it also holds tighter tolerances than the stock bearing.