Variator rolls set 17x12x7.2 RMS 
Standard size and weight for the models:  
DERBI: 
Atlantis 50 99-01 
Atlantis Lc 50 99-01 
Predator Lc 50 98-01 
SUZUKI: 
Katana V-Y 50 97-00 
Suitable for tuning on: 
SUZUKI, ATALA, APRILIA, DERBI, ITALJET, MALAGUTI, TGB and CHINESE SCOOTER with SUZUKI AD (Air Cooled) or KATANA - MORINI (Liquid Cooled) based engine like HYOSUNG, MEITIAN, QINGQI, CHIN CHI and many others. 
 
                     |