If you are a first time cyclist in the city, then having lights will make you more visible to cars and pedestrians. When drivers see you they give you extra space.
With a computer it will tell you the speed you're going and distance travelled. This can help you meet your goals brag to your friends.
Pace 15, Wireless Cycling Computer
Functions:
1. Current speed display KM / MPH
2. 12/24 hour clock
3. Display function auto scroll
4. Stop watch
5. Trip Distance
6. Total Distance
7. Trip Time
8. Average Speed
9. Maximum Speed
10. Calories Consumption
11. Fat-Burn Measurement
12. Temperature, also day max and min
13. Speed Tendency
14. Maintenance reminder, user settable
15. Back Light, configurable
Phoenix Magnetic Tail Light