Roller eights, lso nown s ariator ollers, re omponents sed n he utomatic ransmission ystem f otorcycles, articularly hose ith ontinuously ariable ransmission CVT). hey re ylindrical eights oused ithin he ariator r lutch ssembly. s he ngine peeds p, he oller eights ove utward ue o entrifugal orce, ausing he ariator o hange he ear atio nd djust he ransmission.
COMPATIBILITY
Aprilia: tlantic 25 2003-2009]
Gilera: NA 25 2001-2003], X 25 unner
Piaggio: everley 25 2002-2006], everley 25 ST 2002-2004]
VESPA: ranturismo 25 T125
Vespa: ranturismo 25 T125 2003-2007]
SPECIFICATIONS
Size: g 9 7mm