I have bought and sold many bicycles throughout the years for personal use. I recently recognized that I needed a strong, dependable handlebar mounted light on my newest bike. I didn't want to spend alot of money, so I dug out my Trail Rat light and battery that I purchased back in the 1990's. I tested them and both still work like new. After realizing that I must have sold an old bicycle with the handlebar mount still attached, I ordered the standard mount from Niterider. After receiving the handlebar mount, I was impressed to see that it was still compatible with the system that I purchased from Niterider around a few decades ago! This review is a testament to the excellent quality and customer service offered through the company. I do not usually take the time to review products, but I stand behind this one. Additionally, I have not received any incentive to submit this review.