Although most of the golf drivers on the market these days are in the oversize category, most manufacturers will offer three basic club head sizes for drivers. 
 
Standard – Measures 150-155 cubic centimeters (volume). The standard size offers better control for advanced players, and a potentially faster swing. Better control generally means being able to modify your swing and/or the club angle and hit the ball with a fade or draw depending on the need. However, a smaller sweet spot means a standard head is very unforgiving for miss-hits. 
Midsize – Measures 155-250 cubic centimeters. The midsize offers a larger sweet spot than the standard head; however some control is lost for precision shot-making. 
Oversized – The largest club head size, 250 all the way up to 460 cubic centimeters. The oversized offers …

When choosing the best golf grip for your driver, you need to look at three characteristics: size, construction material, and weight.

Grip Size
Grip size is extremely important in controlling the club. A grip that is too large may make the club feel loose and can limit a player’s ability to release the wrists through impact, creating a fade or slice. A grip that is too small can cause the club to twist in your hands as a result of unconsciously squeezing the club at the bottom of the swing. This action creates an early wrist release and a closed clubface at impact, resulting in a pull, draw or hook. A properly fitted grip size allows the player to return the clubface to the square position at impact and hit the ball …

Selecting a golf driver with the correct loft for your game is extremely important if you want to get the most distance possible off the tee.

Loft is defined as the measurement, in degrees, of the angle at which the face of the club lies relative to a perfectly vertical line, such as the shaft of the club. Drivers are the least-lofted clubs (not counting putters), while wedges are the most-lofted, sending the ball out and up at the highest angle. Manufacturers typically offer driver lofts between 7.5 and 16 degrees. Lob wedges, the highest lofted club, are around 60 to 64 degrees.
In 2003 Golf Digest conducted a study to determine the most ideal lofts for players of various ability levels. They looked at the physics of ball flight. A common …

Often called the engine of the golf club, choosing the best golf shaft for your driver is essential for improving your golf game and getting the most distance and accuracy off the tee. 
 
There are several important characteristics you need to look at to determine the type of shaft for your driver: the degree of flex, the type of material it’s made out of, the location of the kick point, the amount of torque, and the shaft length. 
Degree of Flex

Flex is a measurement of the degree to which golf club’s shaft bends during the golf swing. All shafts, no matter how stiff, exhibit flex under the forces of the golf swing. To determine the degree of flex you need in a golf driver shaft, you need to know your swing speed. …

The coefficient of restitution (COR) is the measurement of the amount of energy lost or retained by an object when it hits another object. It is a number between 0.00 and 1.00.
An object with a COR of 0.00 is in-elastic and all of its energy is lost in the collision. Think of a golf driver head with fresh playdough covering the face, hitting a golf ball made out of chewed gum. They stick together and don’t move anywhere and all energy is lost at impact and absorbed.
A COR of 1.00 means all of the energy of the collision is transferred to the new object in a perfectly elastic collision. A sports example would be in pool or billiards, when the cue ball hits the target ball. The cue ball stops, …

The moment of inertia (MOI) is a physics term that measures the ease or difficulty of setting an object in motion around an axis of rotation. A higher MOI means more force will be needed to get that object rotating.
The MOI of an object changes when its shape changes. To understand this, think about a figure skater (Katarina Witt, Gold Medalist, and Playboy Playmate is my favorite). When Katarina began a skating spin, if she pulled her arms in, she would reduce her MOI and she would spin faster. Arms extended, her MOI increased and her spin slowed.
Now how does this apply to the golf driver? (After googling “Katarina Witt Playboy pictures” of course.) There are several important MOI’s associated with the design of a club head. The primary one …