DOS SIX Roller Variator for Derbi 505 Case iron bore with a

Case iron bore with a 2-ring piston should offer a long and reliable life

"Lever protections used in MOTO GP as front brake shelter become mandatory also in the POLINI ITALIAN CUP

These are original decals and might have a fold or bend in the larger stickers

New old stock aluminum variator covers for Peugeot mopeds

If you have the reed cases

DOS SIX Roller Variator for Derbi 505 Case iron bore with aNew 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.