When should I get my bike serviced?
As a rule of thumb, Reid recommends you get your new bike serviced after the first 6 weeks of riding for adjustments as parts bed in. Following this, it makes sense to at least get a service pre-Summer and pre-Winter. This schedule varies based on how much riding you do and what preventative maintenance you do yourself.
Of course, if you notice any noises, looseness or wobbles, these should be attended to immediately. Often it is something small and can prevent costly repairs. Preventative maintenance is often cheaper than a big fix or replacement.