BUCKLOS PM/is Front Rear 180/203mm Disc Brake Caliper Mount Adapter Gear Parts Accessories, CNC Machined Aluminum Alloy Rotor Adapter with Bolts

Excellent adapter, Worked perfect and was very easy to install. After upgrading to a 203mm rotor my braking is so much better. You get a much shorter stopping distance and it requires less pressure on the brake lever to stop. This should be at the top of your upgrades.

If you want to upgrade your brake rotor from 180mm to a 203mm look no further easy install perfect fit and finish ...Just make sure you get the right adapter...

Bought these on accident after ordering the Shimano equivalent from Jensen. Used to install 203mm xtr rotors upgrading from 160mm on a Trek Fuel ex 9.9....They fit like a champ....I kept the Shimanos for another bike. Used these with the Bucklos ceramic pads....no regrets!!!

I totally ordered the it without looking at the size. I needed a 160 not 180mm. But I'll keep it when putting on a bigger disc brake rotor in future. Love the color and look tho !

This was delivered overnight and worked exactly as I wanted it to. I used it to shim out the caliper on my Juiced Hyper Scorpion so I could change from a 180mm rotor to a 203mm rotor. The first one they sent was the wrong size. A return was authorized right away.

Just bought a new fox 36 factory fork on my bike yesterday. Used this adapter to mount my 4 pot SLX caliper to the fork because I have 203mm shimano rotors. This mount had the caliper sitting too high off the rotor, so when I applied the brake, the uneven pressure of only half of the brake pad on the rotor caused one of my pistons to crack and fluid started leaking everywhere. They should have a warning on this listing about this. There is another review talking about his problems with this adapter on the same fork. Destroyed 90$ calipers because of that.

Works as it should

These adapters do not correctly offset my PM front brakes and PM fork since they slightly move the pads too far out instead of to the center of the brake rotor. I ordered the 180mm version and after installing and alignment, I noticed a bad noise from the brakes caused by the pads not fully covering the rotor surface. It's actually protruding out a bit. So instead of 180mm, it's more like ~185mm. The bolts that were included had heads and threads which were too large so it interfered with my brakes. That was fixed by using my own screws.