Cylindrical pin to retain 5th gear on main shaft

Cylindrical pin that locks 5th gear onto the main shaft, Guzzi calls it "roller". Used on 5 speed big twins 1972-2011.850GT, Eldorado, V7 Sport, 750S, S3, 850T, 850T3, 850T4, V1000 G5, 850 LeMans, LeMans II, CX100, SP1000, SP II, SP III, Strada, LeMans III, LeMans 1000 all years LeMans IV and LeMans V, 850T5, Mille GT, 1000S, California II, California III, California III injected, California 1100, EV, EV Touring, Jackal, Bassa, California Special, Special Sport, California Stone, Stone Touring, Aluminum, Titanium, Stone Metal, Quota 1000, Quota ES1100, Daytona 1000, Centauro, 1100 Sport carb, 1100 Sport injected.  This item is available by special order only, allow an additional typical 2 to 4 weeks for delivery.