Interpreting the results Zero Friction Cycling Test Data
ZFC testing occurs in 6 blocks,Results are given in wear % of chain life
0% equals No Wear and 100% means chain is at end of life.
Block 1. 1000km Dry riding at 250w, to test penetration/coating ability of the lube
Block 2. 1000km Dry contamination, chain is sprayed with sandy loam while riding to assess contamination resistance
Block 3. 1000km Dry riding no contamination. This tests whether the lubricant retains the contaminants or can clear them
Block 4. 1000km Wet riding. Chain sprayed with water to test water resistance
Block 5. 1000km Wet contamination, chain sprayed with water and sandy loam
Block 6. 1000km Extreme we contamination, chain is sprayed with water and 2x sandy loam contamination mixture.
The test is designed to replicate real world situations to help you choose the best chain lube for your bicycle. Up until 2020 only 1 lubricant had made it through all 6 test blocks below 100% wear, and 95% of lubricants tested fail the test before reaching block 6. SILCA WS2 technology has produced lubricants in all 3 lubricant type categories which make it to block 6 including the current all-time test winner, SILCA Secret Blend hot wax which has beaten the previous record holder by nearly 4x!
(Please note, there is no 'Dry Lube' category. Dry lubricants test poorly in efficiency and often will not survive to Block 2 of testing. These lubes tend to be mostly solvent mixed with dry lubricant powder and are both environmentally harmful as well as fast wearing and inefficient.)