Originally Posted by curlybro
It should work fine for SS, but not fixed. Most QR devices cannot be tightened enough to handle the added torque that riding fixed creates.
1. there is no torque on the QR unless you hub is seriously ****ed.
2. There is no inherent difference in the force hte QR must resist between fixed and ss
3. There is however some difference if you skid.
4. There is also a substantial difference in the force during normal riding conditions if you are SS or fixed with a normal size cog compared to multispeed.
Therefore it is not neccessary but may be advisable to switch to a solid axle unless you are using a massive cog. If you leave both brakes on there is no real difference between ss and fg. Since a new axle is under $20 and it could't hurt to replace the bearings anyway you might as well switch to a solid axle. If not you should probably try to find a skewer with very sharp teeth.