Wolftooth Aluminum Singlespeed Cog: 20T

Great Mountain Bike single speed COG.

A quality and (extraordinarily) light weight SS cog. This is certainly worth the money. Niagara Cycle Works delivered the package ahead of schedule and exactly as advertised. Packaging was professional and no defects on the product.

Fits well. Nice and light. However, after only 2 rides I noticed the chain had dug into the tooth valley. I was mashing up a few climbs but isn't this what its intended for?

みんなサー○ーじゃつまんないでしょ？黒くて汚れが目立たないのも良い

Lighter than my Kickass Cog and Absolute Black Cogs.For durability, time will tell but no issues, running a 10speed xtr chain, I can see how someone commented that their chain was eating the cog... use an appropriate chain and you will be fine (11 or 10 spd).Final Note: Has a mm or two larger stance so it doesn't chew into the freehub. Great Price and Great Cog!