[duelce]

you've seen the pros use those speed bags with a crank on the middle. the board looks like it's 2-3" thick and is more like a square than a circle.

does anyone know the general idea of how to construct one of those speed bags with a crank?

since these types of boards are not found on sale anywhere they have to be made custom.

it looks like this
YouTube - DLH Training for Mayweather

 

[NsBLife]

:laugh::laugh::laugh:

 

[duelce]

:laugh::laugh::laugh:

i see how it is,
anyway, i'll probably just get the valor ca-2
it comes with an adjustable crank for 300.