whats the difference between.....

the weight, 4u is lighter then 3u

 

In a way yes, but the power would be less.
4U rackets are more flexable and would be considered more fragile because of less material compared to their 3U counterpart. They do not perform the same either.

Just curious what racket do you have?
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Not everyone wants 3UG4!! I need 3UG5.

 

Theoretically, lighter rackets will be better for defense but attack will suffer, however it all comes back to the ability of the user

 

This would be dependent on the player.

 

some brands had their standards different.Like in my case,bonny 1 U is 80g something.Grips on Flexpro n stuffs also,as G1 stands for the smallest.Yonex,Kason,Oliver,Victor and some others r using the same standards,which is 5U stands for the lighthest n 5G is for the smallest grip.
So,just take a look at the weight stated on the racket,rather than to just follow Us or Gs,cause sometimes it can be confusing..

 

Hi Fitness,

I think a better question to help you make your decision is this.

Any one used a AT500 and what is the different performance differnence between a 3U and 4U AT500.

I will not ask the other question of What is the difference between a NS7700 3UG4 vs AT500 4UG4 because they are totally different racquets.

My answer to the first question is in real life, it depend on the player. In theory, a 4U AT500 has more gain in defense than loss in smashing power. Due to the head heavy design of AT racquet if the weight difference is distributed evenly over the shaft and frame (ie same balance point) the frame will lost about 2~3g of weight, that will be make up by small increase of head speed. However, decrease of overall weight will make it easier to get your racquet to the right place to defend a shot.

Please add additional input to help FitnessFreak pick the right racquet.