Massi M4 Bike Oil is an oil with Colloidal PTFE developed exclusively for cycling. Tested and evolved under the parameters required by the technicians and mechanics of Massi professional road, cyclocross and MTB teams, Colloidal PTFE is an important evolution that allows the total dissolution of PTFE with the lubricating liquid, avoiding the high deposits they present traditional lubricants. Its thin and uniform slightly oily film allows a perfect lubrication that eliminates and repels water, avoids the retention of dust, protects against corrosion and facilitates the disassembly of seized or oxidized parts and their cleaning.