Been using this product on my road bike (conventional drop-outs) for years. Works like a charm, dependable, simple operation, and aesthetically pleasing. Just bought a couple more for my gravel bike for thru-axle use, and although it's just a bit trickier to use for thru-axle, it's still a great way to keep the chain in place when the bike goes into the trunk of my car (both wheels come off) for drive-and-rides that I do x2-3/month. This chain keeper may seem a bit pricey, but for me it's been well worth the cost. A great value for a long-term accessory. You won't be disappointed or regret getting one (or more!).