In 2002 Doug White decided the world needed a better freewheel. Until then singlespeeders seemed to be content not knowing if their freewheel would last a week or a year, or fail a mile away from home or hundreds of miles. But what was certain was failure. Overnight the ENO freewheel became the standard to measure everything else against.
Starting with a driver made from heat-treated 4130 steel that houses 3 heat-treated S7 tool steel pawls (6 on the Trials model), we add an 8620 steel case-hardened and electroless nickel-plated outer gear turning on an Enduro chromium steel bearing. We basically designed all the weak links out of the system. And because everything wears out eventually, we designed them to be rebuildable.
Standard single and DOS freewheels feature 36 points of engagement while the Trials freewheels utilize a thicker outer gear (the base, not the teeth) and 72 points of engagement to make those insane moves a little easier to pull off.
Our freewheel bearings are ABEC 3 or 5 grade depending on freewheel type, are made from chromium steel, and use a special Mobil XHP222 extra high-pressure grease.
- Teeth: 16/18T
- Chain Width: 3/32"
- Threads: 1.37” x 24TPI
- Standard and DOS freewheels have 3 pawls and 36 points of engagement
- Trials freewheels have 6 pawls and 72 points of engagement
- Lockring color: Blue
- All freewheels are 18.4mm wide
- On DOS freewheels inside teeth are 6.1mm from the inner base of the threads and the outside teeth are 11.8mm from the base. Teeth are 5.7mm apart center to center