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Product Images

White Industries Dos ENO Single Speed Freewheel Red - 20/22T
White Industries Dos ENO Single Speed Freewheel Blue - 16/18T
Red - 20/22T
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White Industries Dos ENO Single Speed Freewheel 2
White Industries Dos ENO Single Speed Freewheel 1

White Industries Dos ENO Single Speed Freewheel


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Mfg PartNum:
MSRP: $146.35
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The White Industries Dos ENO is the perfect way to add some versatility to your single speed bike.

This smart design places two speeds on one freewheel, allowing riders to manually move the chain between gears when lower or higher gears are desired.

Unlike traditional disposable freewheels, the Dos ENO uses a top quality sealed cartridge bearing that keeps out mud, dust and grime and is easily replaced when worn. A precision machined inner driver and outer gear case eliminate tight and loose spots associated with lower quality freewheels. Finally, a 36 tooth engagement system and a case hardened, electroless nickel plated outer gear case provide instant power transfer to the pedals, outstanding protection from the elements, and jaw dropping looks.

The White Industries Dos ENO Freewheel is available in 16/18T (Blue), 17/19T (Red) and 20/22T (Red) sizes. Silver. Made in the USA.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.


Drivetrain Speed: Singlespeed/Fixed Gear 

Cassette Use: Road 

Cassette Type: Freewheels/ Fixed Cogs 

Blue - 16/18T

Mfg PartNum: FWSS1618T 

Red - 17/19T

Mfg PartNum: FWSS1719T 

Red - 20/22T

Mfg PartNum: FWSS2022T 


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1 stars
Reviewed 6/18/2015
by Grimes
Competitive Racer
Minneapolis, MN
Value Rating
Overall Rating
2 of 3 customers found this review helpful.
Great upgrade

I got this to upgrade my winter bike setup. I put the Surly 1719 dingle cog on one side and the Dos 1618 freewheel on the other (with 44/42t chainrings). This freewheel is replacing a 16t generic Shimano one and the difference in quality is incredible.

It might seem expensive, but for me it should be well worth it - the Shimano freewheel needs to be replaced after one winter, I'd need two of them to get the high/low gearing I want, and I don't have to deal with a removal tool in a vice whenever I want to change gears, so I'll be ahead if this lasts for more than two years.

On a side note, I'm very excited to hear how this sounds with some studded tires this winter.

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Reviewed 9/12/2013
by Anonymous
SE Portland
Value Rating
Overall Rating
5 of 6 customers found this review helpful.
great product that offers flexibility for single speed lovers, rebuildable

likes, solid

dislikes, not compatible with single speed chains, pawls are really loud

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Mechanic's Corner

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A guide to understanding and calculating bicycle gear inches.
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