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White Industries ENO sprocket (18T)



Solid cog with zero movement giving reliable power delivery to your back wheel

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

What the scores mean

Good scores are more common than bad, because fortunately good products are more common than bad.

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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. 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.

Rate the product for quality of construction:
Rate the product for performance:
Rate the product for durability:

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.

Rate the product for weight, if applicable:

You can get alloy cogs if you want to compromise durability and save a few grams.

Rate the product for value:

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

Overall rating: 8/10

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,

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