Updated since 2014 to reduce the risk the 3nd gear leave out
Reinforced at the  gear kick support and for the 3rd tooth
The best drum set is the updated
reference 4121
For needles bearing assembly on the right side. Since 2009
Ø45.6 / 21 teeths
Ø49.9 / 23 teeths
Ø57.3 / 31 teeths
Ø66.5 / 36 teeths
 
Not right for TOKAWA engine