Frozen suspension in the winter Winter is coming! Last season I put my road bike in the garage and just rode my mountain bike all winter. Something strange happened: my suspension fork froze. When spring came everything unfroze and was a-ok. Questions: 


Should my fork freeze when it is cold outside?  
Do you like having suspension when it is below freezing?  I mostly just do road/logging roads.  There are not really any trails where I am.  I don't see too much value to suspension in the winter.  Comments?  
If you want to use suspension in the winter do you need a special fork or can you service your fork somehow?
Disclaimer: I used to design and sell after market suspension parts for proflex bikes

There are three main strategies for the "spring" in fork suspension


coil spring 
elastomer stack
inert gas, e.g. air or sometimes something fancier.


Nowadays all springs are dampened somehow either by


using oil, 
negative air (opposing force on the spring)
friction (frequently used on cheaper elastomer stack forks)


Cold temperatures effect oil and elastomers but have no real affect on the other types of springs and dampers.  

In sub 0'C temperatures oil can become much more viscous and can't dampen the shock properly (oil is forced through little holes to slow down the spring-back of the fork) and thus make the fork feel like it is not responding.  If you keep riding, the friction might heat up the oil a bit.

Elastomers are harder to heat up.  I know Proflex riders in the nineties used to pour boiling water on the elastomers before going out for a ride.