Gen2/Rear Bearings
From Unofficial Zero Manual
< Gen2
The rear wheel contains 3 bearings and dust shields.
| Years | Platform | Kind | Type Code | Measurements | Lifespan (guide) |
|---|---|---|---|---|---|
| 2012-2014 | S | Unsealed | 6904-2RS | 20x37x9 | ~20,000 miles |
| X | 6204 | 20x47x14 | |||
| 2015-2020 | SDS | Sealed | NSK 6204DU | ~50,000 miles | |
| XMX | |||||
| 2020- | FST |
- References
- Precision bearings & replacement.
- Anyone know front wheel bearing size.
- Ceramic bearings for a 2014SR, with success reported for at least as long as the original bearings. The author is going back to steel.
- Per Terry Hershner
- The 2012-2014 wheel bearings are 6904 bearings which are bicycle sized bearings.
- They lasted me about 20,000 miles per set.
- Best is to use a 2015 wheel on the 2014 which will work but requires modification of the spacers.
- I did it on my 2012. It now has 2015 wheels.
