Offset Driver Reviews
*.900 Cor Golf Drivers
*.900 Cor Golf Drivers
'I'd like to thank you for introducing me to your offset driver. I played with it on Saturday and found the fairway 75% of the time. I had never, ever done that before! Thanks.' W.R.900 Cor Golf Drivers
“Ordered your Ultra Edition offset driver for seniors and I am more than pleased. I normally drive around 215 to 220 yards. The first round I played with the new driver we measured several of my drives by GPS at 240 to 250 yards. My friends are amazed at how well I hit the club. Now I'm interested in your fairway woods and irons. Thank you.' D.C
'Three weeks ago I received your light weight offset driver with 47' senior shaft and I have had a chance to play a number of rounds with it. Just wanted you to know how pleased I am with the club. I'm 80 years old and hit a drive the other day 238 yards for the first time in many years. Even my bad hits go as far as the good hits with my old driver. I now have the ability to reach par 4's and 5's in regulation so it's made the game fun again. Thank you and I will order more clubs from you soon. D.S.
May 24, 2019 The terms 'coefficient of restitution' and 'COR' came into the mainstream golf lexicon as ultra-thin-faced drivers began to proliferate in the early 2000s. An effect of the thin faces is known as the 'spring-like effect' or 'trampoline effect': The face of the driver depresses as the ball is struck, then rebounds, providing a little extra oomph. Aug 29, 2016 The stock shaft in the JPX-900 hybrids is a Fujikura Pro available in 83X, 73S, 63R and 63R2, and the clubs will sell for $249.99 beginning on September 16. Related: See what GolfWRX Members are saying about the new JPX-900 Drivers, Fairway Woods and Hybrids in our forum.
'This ultra light offset driver has been a great tool for correcting my tendency to slice my drives. I will soon be 72 and am happy to be driving the ball 200 yards again. Thanks for having a product that actually performs as advertised.' D.G.
'I got your offset driver with super senior shaft and it is now the best club in my bag. Very pleased with the extra distance and how easy it is to hit straight.' J.C.
.900 Cor Golf Drivers
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What is COR? Equipment editor Hannah Holden talks us through what COR stands for and how it affects the design of your golf equipment
When talking about equipment there are numerous phrases or acronyms that are used a lot but aren’t explained very well, generally this is because they can be quite technical and complex topics so here I will try break one down – what is COR in golf clubs?What is COR in golf clubs?
COR stands for Coefficient of Restitution. This is defined as the ratio of the final velocity to the initial velocity between two objects after their collision.
Basically COR is a measurement of the energy loss or retention when two objects collide.
The COR measurement is always expressed as a number between 0.000 and 1.000, where 0.000 means all energy is lost and 1.000 shows a perfectly elastic collision where no energy is lost.
It isn’t actually physically possible to score 1.000 in a real life situation as this would mean no energy is lost during impact.How is COR calculated?
The club speed after impact is subtracted from the ball speed after impact. This is then divided by the club speed before impact.
So for example if a players club speed before was 110mph and they created a ball speed of 160 and had a club speed of 76 after impact the COR would be 0.76.
The current limit to COR in golf clubs is 0.830, if a club is tested above this it would be ruled non-conforming. This means the club cannot transfer more than 83% of its energy to the ball.How is COR measured?
To measure COR you need to launch a ball at the clubface. The speed velocity of the ball before and after it has made contact with the clubface is then measured. This is a complicated test to run so the R&A introduced a measurement called Characteristic Time (CT) to measure the elasticity of the clubface.How does COR effect driving distance?
Whenever you hit a shot there is always some energy lost when the club hits the ball. At impact the ball is compressed against the clubface and can squash up to 30% of its diameter against the driver face. This is where the energy is lost.
With a high COR face design the face flexes inwards so the ball isn’t compressed as much. This means the face loses more energy as the clubface is flexing more. The ball however loses a lot less energy due to the reduced compression against the face.
This means the ball comes off the face faster providing an increased ball speed and ultimately giving you more distance with your driver.
If you have any questions, please let me know in the comments below or you can tweet me.