- 104mm BCD 4-Bolt SharkTooth Pro Mountain Chainring Made in USA- New 2017 Model

I haven’t tried out yet. I give 5 stars just the way is designed

The description states the chainring is 7075 alloy but the one I received was stamped 6061 which is a softer alloy and will not wear as well. A 32t was also 6061 rather than the advertised 7075 and in addition the 32t was a narrow/wide which was not in the description and not what I wanted.

Good purchase

I looked at the technology behind this and adding the fact that is made in the USA (along with the convenient price) pushed me to pull the trigger and got it.I got a 32 teeth ring, and when I received it I couldn't stop admiring how beautiful is machined. The fitment was absolutely perfect.The issue came fairly quickly... Performance was good for about 30 miles of trail riding (nothing crazy, I don't do jumps or drops or "gnarly"stuff), then I started dropping chains.I didn't blame the ring right away, I took off the rear derailleur, serviced the clutch - I readjusted the whole drive train.My chain line is within 1mm of perfect center, so after excluding everything else and still dropping chains, I decided to try and substitute the ring.I had a cheap chinese 32t ring laying around, fitment was now ideal on the crankset, so I needed to get some filing done to make it fit, but once I put it on the chain dropping stopped.I really wanted to like this ring, unfortunately the performance on trail riding were quite poor. This might be a good ring for road or a hybrid build, but not for mountain biking