For any road cyclist the accessories are important for staying comfortable on the bike.
No matter what road cycle clothing you wear, you will always find need for the accessories to increase your comfort and to keep you warm - especially in winter. Gloves, arm and leg warmers are a must for these colder days, but sturdier riders may want for knee warmers of even three quarter length bib tights.
There are so many cycling accessories out there to choose from it can be hard to isolate what you actually need, but a good pair of arm and leg warmers are ideal choices, along with a skull cap and a buff to keep your neck warm should be plenty to keep your performance high when the temperature gets low.
In summer and spring you may find yourself needing some new mitts or a gilet to keep your torso a little warmer on those days when you don't need your jacket but it's still a little cold, as with a short sleeve base layer this will keep you warm until summer arrives.