Main shaft TNT ORIGINAL complete for engine gearbox 139FMB-B on motorcycle 50 4t MASH FIFTY, A RC HIVE ...

Here is the complete TNT ORIGINAL main shaft for 139FMB-B engine gearbox on motorcycle 50 4t MASH FIFTY, A RC HIVE ...

If you have noticed a problem in the passage of your reports, that your gearbox is blocked, it is surely due to a breakage of the pinion teeth, a veiling of the shaft ...

Attention it's just the main shaft, if you need to order the secondary shaft it will also be available at the bottom of the product description!

Mounts on:

ENGINE 139FMB-B E4

MASH FIFTY E4

A RC HIVE 50CC E4