I was wondering if anyone can throw light on this. The bicycle's chain is one of the most important parts according to me, yet I find it most neglected since we don't have access to may stores that stock bicycle friendly spares and parts. As basic as lubrication, which is so important to avoid wear & tear, especially in the monsoons, is something easily neglected. While most cycle shops recommend the regular (WD-40 or other) machine oil, I have done researched and believe that synthetic bicycle chain oil, perhaps containing suspended Teflon is the best. However, I'm not sure where I can get a good one around Thane.