Review on 🚲 JIANKUN Bike Crank Arm Set 170mm 104 BCD with Bottom Bracket Kit and Chainring Bolts for MTB BMX Road Bicycle, Shimano FSA Gaint Compatible (Black) by Trey Samuels

Got six of these to convert our MTBs to 1x. Some of them came with plastic spacers and some came with aluminum spacers. But I don't think it matters. We ride easy trails most of the time and never do big jumps. We didn't experience any crank drops as other users have reported. After a few miles, some of our bikes started making a crackling noise when pedaling hard. I've tried removing, cleaning, adding lube, etc to fix the problem. But the noise comes back after 2 or 3 miles. I think the noise is coming from the bottom bracket. I will buy a genuine Shimano bottom bracket to see if the noise goes away.