In this post coach Tyler Ferrell explains what is the motorcycle move, why it is helpful and how he uses HackMotion sensor’s biofeedback to teach it during his lessons.
The terminology used: Flexion (-)/Extension (+) = Bowing/Cupping of the lead wrist
Watch the video below to see how Tyler uses HackMotion sensor.
Tour professionals at impact have around -25 degrees more flexion (more bowing) of the lead wrist than they had at address. So if average pro player has 25 degrees extended (cupped) lead wrist at address, he on average has 0 degrees extended (flat) wrist at impact.
By studying the data of tour player wrist motion from the top of the backswing to impact we can see that they do something a little different from most amateur golfers. Many of them flex the lead wrist with a motion similar to a “motorcycle move” and get the clubface square to the target line earlier and that allows them to hit more powerful and solid shots.
What is the “motorcycle move”:
At the top of the backswing take your lead hand and pretend it is no longer on a golf grip but on a motorcycle grip. Feel the knuckles of your lead hand turn clockwise as you start your downswing. This will give you the feel of closing the face earlier in your downswing. If you turn you knuckles but don’t keep rotating your body you will hook the golf ball or start the ball well left of your target. If you turn your body but don’t knuckle down enough you will leak it to the right.
Take a look at 3 drills that Tyler Ferrell recommends to use with Hackmotion Biofeedback.
3 HackMotion Biofeedback Drills
Drill 1: For players who tend to really cup the lead wrist at the top and open the clubface too much. They have too much wrist extension at the top, so if they make the wrist flatter at the top, it is also easier to get it flat or slightly bowed during downswing and impact.
1. Set Hackmotion real-time biofeedback to make a sound when lead wrist is flat or slightly bowed, biofeedback range -20 degrees (flexion/bowing) to 0 degrees (flat).
2. Make practice swings and get immediate audio signal once you get into the correct position. If you are out of the position, there is no audio signal.
Drill 2: For players who tend to extend (cup) the wrist during the downswing. Practice the motorcycle move during transition, when hands are around chest height.
1. Set Hackmotion real-time biofeedback to make a sound when wrist is flat or slightly bowed, biofeedback range -20 degrees (flexion/bowing) to 0 degrees (flat).
2. Make a practice swing and when hands are at shoulder height during downswing dynamically move from lead wrist extension to flexion.
Drill 3: Exaggerated feel at the bottom of the swing to feel the wrist not extending.
1. Set Hackmotion real-time biofeedback to make a sound when lead wrist is flat or slightly bowed, biofeedback range -20 degrees (flexion/bowing) to 0 degrees (flat). Get into normal address position (around 30 degrees extended).
2. Take a short backswing to 9 o’clock and really flex (bow) your lead wrist so the sound signal is playing. Then hot the ball, keeping the signal playing.
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In-depth Overview of Motorcycle Move
If you want a more in-depth analysis of the motorcycle view take a look at this Tyler’s video from GolfSmartAcademy where he uses AMM data to analyze different tour player swings. Please note that the AMM data will be upside down when compared to Hackmotion sensor’s data. In AMM system’s data flexion (bowing) is positive value and extension (cupping) is a negative value.
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