Many riders ask, "What is the difference between the Extreme, Absolute Dry, and the Gold?" The Extreme is for MTB's and can be used on the road, but the Absolute Dry is for the road, only, and the Gold is for all bikes. Here's why: The bicycle, because it's on rubber tires, is not grounded, making the bicycle a static electricity machine. As the bicycle rolls along, it's constantly throwing off negative charged electrons, whereas the dirt along the ground is positively charged, and comes up to the bike to replace the discharge. The dirt is going to stick to whatever is sticky on the bike; of course the chain is the number one spot.
Road bikes generally tend to pick up more dirt from the discharge, so a thicker, dryer membrane is needed. Whereas the MTB, needs something that can take more dust from the front wheel being kicked up on the chain as well as water crossing, etc. The Gold, is the most recent addition to the Rock "N" Roll chain lube line-up. the Gold, works on all bicycles, staying cleaner and giving smoother pedaling, and shifting, then any lube we know of.