Let me start by saying this isn't a plug-and-play solution. If you're looking to convert your old rim brake bike to disc brakes, these adapters will get you there, but be prepared to roll up your sleeves.

The steel construction feels solid - no worries about durability here. I used them to upgrade my 90s mountain bike, and after some wrestling (more on that later), they're holding up perfectly to aggressive trail riding.

Installation was... an adventure. The front adapter required threading through the spokes (awkward!) and needed serious muscle to clamp down. The rear adapter's too-wide clamp had me improvising with washers as spacers. Pro tip: keep your bench vise and Dremel tool handy - I ended up trimming bolt lengths and doing some strategic bending.

Once properly installed though? Game changer. My new disc brakes perform flawlessly with these adapters as their foundation. The stopping power compared to my old rim brakes is night and day, especially in wet conditions.

Would I recommend these? Yes, but only if you're comfortable with modifications or willing to learn. They're not perfect out of the box, but for under $20, they deliver where it counts - letting you run modern disc brakes on an older frame.