To be mated with the excellent ENO hub, White Industries manufacture a splined fixed gear cogs made out of 8620 case hardened steel, 78 grams of it for a 18T cog to be exact. The cogs are precision cut to mate to the fixed gear hub, rather than the traditional screw on method.
Time will tell if it is a better union between cog and hub but it certainly looks to be, both on paper and in the flesh. There is no apparent taper on the spline interface so play could perhaps develop but the tolerance is very tight and the quality of materials is very high and that should be enough for it be trouble free for a long, long time. The cogs are available in sizes 14t-20t in both 3/32" and 1/8" widths. A standard English 1.29 x 24 tpi threaded lock ring is needed to keep the cog in place. Once mounted to the White Industries ENO hub there is no play and no slip, just a solid connection and direct power delivery that you can depend on, ideal for those who like to skid or punish their knees with resistance braking.
Splined fixed rear cog for ENO hub. Solid cog with zero movement giving reliable power delivery to your back wheel. Ideal for those who skid.
road.cc test report
Make and model: White Industries ENO sprocket
Size tested: 18T
Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?
To mate perfectly with the splines on the ENO hub.
Tell us some more about the technical aspects of the product?
8620 case hardened steel, 78grams, available in sizes 14t-20t in both 3/32" and 1/8" widths.
Potentially a very long time but without a taper on the spline, play could develop between the cog and the hub but the tolerances are high so this might never happen.
You can get alloy cogs if you want to compromise durability and save a few grams.
This will last a long time but if you are changing terrain and want to experiment with different ratios it is going to get expensive.
Tell us how the product performed overall when used for its designed purpose
Solid, dependable performer.
Tell us what you particularly liked about the product
Did you enjoy using the product? yes
Would you consider buying the product? yes, if I have an ENO or splined hub
Would you recommend the product to a friend? yes for the same reason as above.
Anything further to say about the product in conclusion?
Works perfectly with the White Industries ENO hub
About the tester
Age: 36 Height: 78 Weight: 178
I usually ride: Sparton, brakeless fixed My best bike is:
I've been riding for: Over 20 years I ride: Every day I would class myself as: Expert
I regularly do the following types of riding: commuting, sportives, fixed/singlespeed, mtb,