I have not found much difference in the durability of steel sprockets...they are gonna last longer than the chain but need to be replaced with the chain for maximum durability...have not compared the finish quality of Vortex brand to others.
I was curious because I have been running a Renthal aluminum rear sprocket on my dirtbike and expected it to have worn rapidly...quite the contrary...it is marvelously crafted and is holding up fabulously for more than 2 seasons. Wondering if I could have one last on a street bike?...
I tried a renthal aluminum 49t on my 01 Cr500r. It didn’t last long where we ride at Brushy Ridge. It appeared the teeth got longer and longer with each ride.. Brushy has some sand and water on the way to the Mx tracks. Lot of trails, woods, single track, and straight up hills with rocks and roots…
Went back to a rear steel and never looked back. My son rides our Cr250r had a crotch rocket 520 Regina chain on it for years.
He changed it to a did x ring chain a while back and started spitting rings out after the first sand and water crossing encounter. Pitch is still ok for now but it’s not “if” now it’s just “when”…
I use the RK 520mxz5 on the 500 and 420mxz4 on our Cr85r that my nephew now rides..I won’t keep a chain much longer than the second or third adjustment after the initial break in adj….depends how far back the wheel is getting…Once the pitch starts getting long, the dirt, sand, water, and grit eats them up and quickly rolls the sprocket teeth..
Chains are kinda like oil. Everyone has their favorites.. I never strayed too far from Honda’s OEM choice for long before returning. The Regina chain is as tough as an RK though…IMO