Product review – Dumonde Tech Bicycle Chain Lube (BCL) “If you’re still in doubt about what lube to buy, It quite simply is the shit.” Andy DeVol, December 12, 2004September 10, 2014, Bicycle Products, Featured, Dumonde Tech, product review, 0 By Ed Sanchez Products tested – Dumonde Tech Lite and Original BCL Duration tested – 1 year As a...