Niiyen 160mm Bicycle Disc Brake Rotor Stainless Steel Bicycle Rotors Mountain Bike Flange Disc Brake Kit Threaded Hubs Brake Disc Rotor Flange Adapter with 6 Bolts

Every measurement is accurate checked with vernier caliper. Slight warp on one of them I ordered that was corrected just riding it one time. Stops me quick and effective with the hydraulic brakes I also installed. No little wines while riding and I beat on them too. 6 bolts off 6 bolts on and slide caliper over. It doesn't have a direction printed but it is directional, you want it the same orientation as the one you removed

Great quality, as pictured, functionality works, fits nicely. Easy installation. Excellent value!

Rotor Good Bolts BAD to the Bone - 1 star. As others have reported the bolts look good from far and are far from good... One had the head shear off on installation with the slightest of torque. See images with a hole clear through the head of the bolt... I was lucky enough to be able to get the rotor off and then used vice-grips to remove the remaining stud. After that experience I got replacement bolts and threw the bolts that came with this rotor in the recycling bin. The Rotor worked as a replacement for my Dualtron Thunder 2 albeit a bit thinner 1.7mm vs. OEM's 2.0mm according to my calipers. The 48mm BCD bolt spacing is different from the standard for bicycle rotors, so this is a rapidly delivered and affordable option for those in need who have prime with a compatible application with that bolt spacing. I softened the OEM rotor bolt Loctite/thread-locker with a torch and then this was rapidly swapped out once I got the motor phase wires free from the dualtron's swing arm. A heat gun could also likely be used to soften the bolt thread-locker. Amazon carries 3 identical-looking rotors with the 48mm BCD spacing and round center all +/- a dollar or two of one another. Amazon also carries Nutt brake pads and CST tubeless tires for the Dualtron Thunder/Thunder 2, et al.

If you don’t got that lil janky ahh break off already then it’s gon be a issues for you lol easy install threads on easy could be cheaper I wish it was great stopping power too damn good Looks amazing Razor mx400 build

Don’t buy this product I bought 2 rotors and every Allen screw is over torqued and strips like nothing I’m refunding this horrible product definitely don’t buy from this seller

Looks great and working great thanks.

Perfect for a razor sx500

Easy installation, long performance & good fit. Good price for quality. Appearance looks like any other rotor.