• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!

    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

TR2/3/3A Harley Davidson shock oil for Lever shocks?

karls59tr

Obi Wan
Bronze
Country flag
Offline
I've heard that HD front fork shock oil can be used in the Armstrong lever shocks. Is there more than one type of this oil and how much firmer does the shock become ?
 
A little hard to find, but if you can find 30 weight, it adds a fair amount of stiffness. I've never tried to measure it, but assuming the stock oil is 20 weight, you should see something like 20-30% more damping (assuming the shocks aren't worn out or broken).

If of course the increased forces don't break the shock. I've heard of racers sometimes using STP to thicken up the oil for more damping, and blowing the sides out of the shock.
 
Back
Top