Dual shocks was probably the first modification most riders would do. I forget the brand of shocks I used but they had a adjustable dampening valve plus the spring adjustment.
We also used dual sprockets when using the single #40 chain. My race trike used dual row # 40 chain. Remember we were using the Kelsey Hays caliper on the jack shaft the brakes on the axles came later and were made by Borg Warner. Chain breakage was not a ton of fun if you parted a chain climbing a big hill.
My race trike had a custom made fuel tank that was about 6 gallons.
Steve
We also used dual sprockets when using the single #40 chain. My race trike used dual row # 40 chain. Remember we were using the Kelsey Hays caliper on the jack shaft the brakes on the axles came later and were made by Borg Warner. Chain breakage was not a ton of fun if you parted a chain climbing a big hill.
My race trike had a custom made fuel tank that was about 6 gallons.
Steve