BUCKLOS160mm 180mm 203mm Floating Disc Brake Rotor, Stainless Steel MTB Brakes Rotors with 6PC Bolts, Ultra-light Floating Disc Rotor fit Mountain Bike Road Bikes BMX（Black、Red）

These discs were exactly what I was looking for to complete my Mongoose Aftershock build. I used a BBR disc brake adapter (B00VSH3R5O) for the rear mount and calipers from the BlueSunshine (B076BV879V) BB8 brake set (note that the 48mm threaded hub adapters in the BlueSunshine kit are not compatible with the mounting spacing on these discs). I especially like the red anodized spokes on these discs as it fit with some of the other subtle red accents on my build. The build quality is great and they were straight and well aligned once mounted to the hubs. After getting them adjusted and dialed in they work very well. Keep in mind the mounting holes on these are centered on a 44mm diameter and are not compatible with some of the other mounting hubs with a larger pattern used on some e-bikes. I mounted these disks to DONSP1986 hubs (B08NDMPS4S) with built-in disc brake mounting accommodations.

I use this on a mountain unicycle, where it basically has to do 2x the work compared to a bike, since it's the only brake.I don't do long downhills where overheating would be an issue, but for my short, very steep runs, it's been great.

Good

Very good in general, which is why a few vented areas. I play a bit to make it sure is very straight and precise to ride the bike.

Easy to put on. Nice color. Work as intended, I use 4 piston hydraulic brakes.

Value here is ridiculous. Using on a spare wheel set with Hope brakeset, was in a rush and tried due to hearing good things. Fit is perfect, one rotor of two was slightly out of true due to shipping (shipped in cardboard sleeve only) but easily tweaked and has held true for a month. Bolts included are torx and seem of the same quality that avid ships, no issues for me using torque wrench. The finishing grind of the baking surface is not radial like high end rotors but they function very well compared to hope rotors.

Not that the weight makes that big of a difference, it's noticeable when holding them. Main reason for purchase was the color and build design to match the all alloy Bucklos Zoom 4 piston hydraulic brakes. The 2 piston, wired OEM brakes that came with my Ebike were not bad, but these are considerably better when matched with the 4 piston. Bought as a total set which saved a few bucks, they were easy for me to install and again, while not necessary, it is a very cool upgrade and I'm glad I did it.

Update 8/9: Loose rivet, should I refund?Like the color and the printing of torque for the mounting screws.After 20 miles one of the rivets is loose, (mild jingle, I can rotate it, perceptiple movement of rotor from base).? should I just return/refund/ignore/replace it. Under different times I would attempt to tighten the rivet myself, but it seems kind of early for one of the rivets to be losse.I now have 50-60 miles on the rotor and only the one rivet is looseSo far the rotor is working well and reduced the sounds from the rear brake.Please respond in next 7 days.Its an elecric bike and removing the rear wheel is a pita.