catazer 13T/14T/15T/16T/17T/18T Fixed Gear One Speed Bicycle Free Wheel Cogs Sprocket & Lockring FlywheelFor Fixie Track Bike Hub

I was initially hesitant to purchase this cog as I had read other reviewers mentioning the poor machining of the component. Nevertheless, I decided to purchase a 14T cog to run a 41/14 setup.The item arrived without evidence of significant quality defects. The machining is fair, and the cog appears to be effectively taking the loads applied to it with on my daily commute. I cannot comment on the integrity or machining of the lockring as I used my existing one. I did attempt to place the lockring on just to see if it would fit - I encountered some difficulty, which I cannot definitively prove to be due to the manufacturing of the ring (I did not have sufficient grease to lubricate the threading at the time). Lockring aside, I've put about 40 miles on the cog as of this review - if any significant failure of the component occurs, I will most definitely update this review.The cog does its job well for a price that cannot be beaten. I'll most definitely consider purchasing another one of these cogs again should the need to upgrade gear ratio arise.

Fit as expected

The lock ring included in this set is absolute garbage and cost me over $150 because it popped off my bike and stripped my hub. The machining is awful. Don’t make the same mistake I did. Spent slightly more cash and get a proper long ring and cog. Biggest regret purchase of the past several years.

Cheaply made, stamped without refinement. 1/8".

Works as advertised

This is not a common part, the teeth are too wide for a regular chain and the lock ring and gear I got were different threads. I was able to thread the gear onto my surly hub but still not able to use

Es de excelente calidad y muy duradero

Nice cog and lock ring set for the cost. Cog was true and overall finish and machining is good.