New DOS SIX Roller variator for Derbi mopeds! This is designed to fit your Flatreed, Piston Port, or Pyramid Reed engine. Simple bolt on upgrade for any setup. Will work great for mild stock setups all the way up to the hottest blasters built. 6 roller design allows multiple tuning options over a 3 roller setup. You will likely have side cover issues with Piston Port or Pyramid Reed engines. These fit nicely under Flat Reed engine covers though. Aluminum cast variator and stamped steel ramp plate. This setup comes with a brass center bushing and new plastic guides. Also included is a new rear contra spring! The 6 included rollers are 18 x 14 and weigh 4 grams each. You can use 16 x 13 weights in this setup if needed. All of the parts are interchangeable with your old Derbi factory 6 roller variator or TJT setup. You may find the variator guides need minimal adjusting to drop into a TJT. Comes with 1 variator, 1 ramp plate, 3 guides, 6 weights, and 1 spring.
