Finish Line Teflon Synthetic Grease

Product Information

Loads, even with MTB jumps, are not the problem with bicycle bearings – their number one nemesis is the dirt intrusion (even more than water washout, except for very wet/salty conditions). NLGI 1 hardness will do the job just fine.

Reason seems to be advocating for research and evidence that substantiate Relja’s views/opinions. I say the value of the post is in the explanation of grease technical specifications that allow others (like me) to make our own evaluation based on local conditions and habits. I thought Relja clearly made the point that there is no ‘optimal grease’ for every situation. Personally, Relja’s recommendations were a most welcome addition to the post. Criterion 1 – Good functioning in a temperature range of -20 to +80 °C. Greases shouldn’t become too hard at the lower, nor become liquid at higher use temperatures. As will be explained, greases that fulfil thiscriteria need to have a dropping point of at least +100 °C(for hot climates better +120 °C), and the lowest operating temperature (“use temperature” in the remainder of this text) of at least -20 (for cold climate cycling preferably -30 °C). Most widely used grease type. Widely available, at a low price. Fulfills all the criteria a bicycle bearing grease should satisfy. Water and rust resistance is not as good as that of calcium greases, but it is more than good enough for bicycle bearing application. Wider use temperature range than similar calcium greases. In case of high quality synthetic base oils, temperature range is even greater, though this raises the price significantly, without much measurable benefits for use with bicycle bearings. Perhaps for extreme (-40°C cold) uses. Exception where MoS 2greases are useful can be coaster hubs (hub brakes), where excellent heat resistance can help grease hold it’s own better. However, there are significantly cheaper, almost as good alternatives, like lithium complex greases. Fact: Lithium grease is one of the cheapest greases on the market and is by far inferior to nearly all polyurea greases in all aspects besides price.”Of important criteria listed in paragraph 3.1. these greases only have problems with fulfilling Crit. 1. (for extreme conditions of bicycle use), while Crit. 3. is probably best satisfied of all the other grease types, except some enormously expensive ones. Consistency (hardness) is measured with a cone, by methods standardized underASTM 217 IP 50, or DIN 51804, part 1. Measuring unit represents depth the measuring cone enters the tested grease. Testing procedure is shown in the picture 1. Picture 2 This grease is good enough in resisting water washout and it doesn’t get dried out after some years of “neglect”. Having used scores of lubes over fifty years, I still fall for the hype now and then. Random observations: First major bike rebuild, circa 1965, saw me using some ancient Texaco canned pumpkin-colored grease my father had forever. It was sort of NGLI 1.5-2, smelled strong, and worked – yet, upon the next overhaul a year or two later, found rusty bearings still coated in brown wet grease. Placing the disc caliper behind the fork (a copy of a common design used in motorcycling) results in the braking force trying to pull the hub out of the flanges – downwards.

These are high quality greases with excellent lubricating, water resistance, extreme pressure bearing and oxidation resistance properties. My ’06 Specialized Roubaix came with press-in cups, loose balls, and a split-crown race – pretty much the worst piece of crap bearing possible, and despite NEVER riding in the rain, I could have grown potatoes in the lower headset after 3yrs. Rusted, pitted and absolutely filthy. I rode it all yr around too, so it didn’t get FUBAR sitting around in my bedroom, it got FUBAR from dust and the occasional puddle splash from rouge irrigation systems. Polytetrafluoroethylene (PTFE) was accidentally discovered in 1938 by Roy J. Plunkett while he was working in New Jersey for DuPont. As Plunkett attempted to make a new chlorofluorocarbon refrigerant, the tetrafluoroethylene gas in its pressure bottle stopped flowing before the bottle's weight had dropped to the point signaling "empty". Since Plunkett was measuring the amount of gas used by weighing the bottle, he became curious as to the source of the weight, and finally resorted to sawing the bottle apart. He found the bottle's interior coated with a waxy white material that was oddly slippery. Analysis showed that it was polymerized perfluoroethylene, with the iron from the inside of the container having acted as a catalyst at high pressure. [4] Kinetic Chemicals patented the new fluorinated plastic (analogous to the already known polyethylene) in 1941, [5] and registered the Teflon trademark in 1945. [6] [7]

Downloads

Shimano is the primary wheel manufacturer that uses cup and cone. MOST others do not. Please update your own knowledge base. In addition Shimano bearings do not use grease to ‘hold them in place.’ So that argument is worthless again.”