In ten pin bowling which coloured ball is the heaviest and how heavy is it?

16 pounds is the heaviest "regulation" ball.

"Regulation ten-pin bowling balls must weigh no more than 16 pounds (7.2 kg) (governing bodies do not regulate how light a bowling ball may be) and have a diameter of 8.5 inches (21.6 cm). Since the physical size of regulation balls is the same, while the weight may differ, lighter balls are much less dense than heavier ones. Thus, balls under 10 pounds will actually float when placed in water."

https://en.wikipedia.org/wiki/Bowling_ball


The color of the "House Balls" vary by manufacturer. Notably AMF, Ebonite and Brunswick.