• This is the LIGHTEST crank pulley combination available.
• The 2 pc. inter-locking design allows you to change drive pulley diameter quicker at track.
• The crank adapter fits all the pulleys so it reduces cost of replacing damaged pulleys.
• These pulleys are stackable and will adapt to pin drive Gilmer and HTD pulleys.
Available in 1:1, 15% or 30% Reduction