The G5 is O’Brien’s flagship ski for their 50th anniversary in the water ski business. The green and black graphics pay tribute to the great O’Brien skis of the 60s and 70s. The difference is that the O’Brien skis from past decades were never nearly this fast or generated this much angle.

The G5 is best suited to a skier who approaches slalom skiing with more finesse than muscle. A skier who strives to exert less physical effort and rides the center of the ski will find an extremely fast and smooth ski. A skier who is used to getting around 6 balls with aggression and strength will find more angle and load then they can practically manage.

Off Side Turns:g5-2

Off Side turns on the G5 are almost guaranteed to result in massive amounts of angle. Tempered and calm skiing will result in a fast but smooth change in direction and a controllable amount of angle. Abrupt or aggressive moves by the skier to initiate the finish of turn will result in a radical change in direction.

On Side Turns:

On Side Turns are on the G5 as good as any ski tested to date. With the skier’s shoulders high off the water and at least moderate front foot pressure, the G5 seems to automatically backside the ball every time. More than any ski tested to date, the G5 gives the feeling of apexing early, arcing to the ball, and then finishing the turn early. The G5 makes it easy to carry considerable speed back to the center of the course.

As with Off Side turns, calm technical skiing is handsomely rewarded, and clumsy skiing is poorly tolerated. Back foot heavy or impatient On Side turns will result in a stall with the tip high. The ski will still acquire more than enough angle, but the skier will find the resulting rope load to be challenging.

From the wakes to the ball

The G5 is almost guaranteed to draw a path wide and early in front of the ball. Slalom skiing fundamentals, like controlling rope tension from the wakes to the ball, are the key to better skiing, but the G5 will get out wide and early even when those skills are poorly executed. The G5 is legitimately a very fast ski.

From the ball to the wakes

The G5 needs a skier who can take the angle achieved in the turn and then resist the temptation be overly aggressive to the wakes. If the skier simply maintains their stack, the G5 will create more than enough speed to get wide on the other side. For the skier who cannot resist the temptation to be overly aggressive, the G5 may create more than optimal load, which makes the skier vulnerable to mistakes at the next ball.  


Over the course of the review period, I rode the G5 up to my personal all time practice PB numerous times.  In addition, I ran passes near my limit that were as smooth as any I have ever run. On days where I was not well rested or not skiing my best, I found the G5 to be challenging.

For the technical skier who can regulate their aggression, the G5 is one of the best skis available today. For the skier guilty of depending on brute strength to run the course, the G5 may work at longer line lengths but will require an attitude change past 35 off.