If you've got a BIG platform...

[Mrs Mitts]

you might like this fab looking vintage large Everlast speed ball.
13" x 8" ending tonight on ebay!

http://cgi.ebay.com/VINTAGE-EVERLAST-4211-GYRO-BALANCED-LEATHER-SPEED-BAG_W0QQitemZ350374609535QQcategoryZ30101QQcmdZViewItemQQ_trksidZp3910.m7QQ_trkparmsZalgo%3DLVI%26itu%3DUCI%26otn%3D3%26po%3DLVI%26ps%3D63%26clkid%3D6890625414476378948

[biguglybear]

That'd be almost like hitting a beach ball! Don't know how old that thing is, but I'm surprised they had "gyro balanced" technology back then--whatever that means precisely.

[Dutchman]

I've got four that are that size and larger. It takes a platform size of 30" minimum to accomadate them. And yes they make you work for it.

[PIEFURZ]

I think that Tim's board would handle it

I think that Tim's board would handle it. It would be something to see and try out. One of the bags I started out on was a military bag and one a little smaller but still big. Wish I knew the models or dimensions. I got fairly good speed on the basic punching, all I knew at the time.

[paranday]

PIEFURZ, maybe yours was an Everlast 4213? In the early 1990s that one was called the military model in the catalog. Made in USA. It's what's seen in my avatar. 11"x8" is the size, nice bag, fits on a 24" platform.

Say Dutchman, can you post photos of your big bags sometime? Can't remember if I ever asked you.

[Tim]

I think that Tim's board would handle it.

That big board was a 30" diameter, so it should have handled it.

It's the Ringside Heavy Duty platform