Gyms with speedbags in Central NJ?

[JimR]

Any gyms in NJ, hopefully near East Brunswick, that have a speedbag platform? My old gym - Jersey Strong - used to have speedbags, they were removed after...

[JimR]

I understand they're more prone to vibration, but I don't have much wall space and I'm concerned about it mostly being drywall. So any recommendations...