I Want to Ride My Velocipede Mystery Cache

A velocipede is defined as: an early form of bicycle propelled by working pedals on cranks fitted to the front axle.

It's doubtful you'll see any velocipedes while walking/biking towards this cache, but if you do please say so. You won't need to know anything about velocipedes to solve this puzzle either, but rather some rather basic knowledge of various forms of some modern day variances of velocipedes.

N 41° 41.ABC W 071° 17.DEF

A: The number of wheels on a unicycle.

B: The number of wheels on a bike MINUS number of wheels on a unicycle.

C: Laura wants to buy a bike at a yard sale. She has $15 and the bike costs $10. How much does she have left after buying the bike?

D: The shape of a bicycle wheel is closest to this number.

E: Zach and his two friends each have a bicycle. How many bicycle wheels are there?

F: The number of wheels on a tricycle.

Certitude will provide information on the hide. Hope you enjoy!

You can validate your puzzle solution with certitude.