Did you know that most factory lubes usually test as very high friction. The lubricant is greatly suited for the manufacturing process and packing / shipping, and not for lowest friction. As such, never put a new chain on for race / big event day. Plan ahead, put new chain on in advance, run it for approximately 300km (clean conditions), then remove from bike and completely solvent clean and lubricate with you lubricant or choice (just a reminder the lowest friction lubricant on the market is Molten Speed Wax…)