sony sensor cap weighs 2g and moves balance 1 point

bageldog

Semi-Pro
in my yonex duel g 310 version, i found that the little green but cap weighs in at 2.2 g. when you take it out, it changes the balance almost 1 full point towards head heavy (more than 1/16 of an inch, just under 1/8, using a ruler and balancing on edge of a table). kind of a convenient way of fine tuning! i would imagine this effect is slightly more pronounced in lighter rackets (eg vcore f 97 290) and less so for heavy ones (duel g 330).
 
There is no good reason to take the weight off a 310 gram racket ;)

Taking out that trap door can also effect how racket vibrates and sounds.
 
I would love the manufacturers to make that trap door weigh 10g, which is what the sensor weighs. Then someone could add the sensor without effecting weight/balance of the racquet.
 
I would love the manufacturers to make that trap door weigh 10g, which is what the sensor weighs. Then someone could add the sensor without effecting weight/balance of the racquet.

Donnay did it since 6 years ago, too bad other brand did not learn from that even when they come up with this sensor thing. I spent an hour to lead 2 trap door to 8.6 g and can't really go any higher. well, 1.4g difference is tiny anyways. BTW the price trap door is 2.6g.
 
well, I added a wilson shockshield grip, which weights 30g (vs 12g for the yonex grip I removed), so any weight I can remove from the handle at this point is quite welcome.
 
what surprised me the most was that such a small weight on an already extremely heavy handle (with the shockshield grip) still moved the balance point a significant amount
 
well, I added a wilson shockshield grip, which weights 30g (vs 12g for the yonex grip I removed), so any weight I can remove from the handle at this point is quite welcome.

No idea on Yonex, but Wilson shockshield will all plastic still on is around 27-27.3g, I have used 6, both color, weight all of them, different batch etc, your installed SS is likely 24g or so.
 
I would love the manufacturers to make that trap door weigh 10g, which is what the sensor weighs. Then someone could add the sensor without effecting weight/balance of the racquet.
I have added several layers of lead tape to the trap door to equal the weight of the sensor, easily done.
 
maybe my scale is off, but it shows 29.5 g. and it gives appropriate readings for racket weights and lead tape lengths
 
I have added several layers of lead tape to the trap door to equal the weight of the sensor, easily done.

That works if you like the weight/balance of the racquet with the extra weight. I had a Textreme 95 that once I put on an overgrip and the Sony Sensor ended up being around 348g, 11 pts head light. I preferred that racquet without the extra weight. I would have liked to see Prince come out with the same spec (335g, 8 HL) WITH the 10g trap door, so it would still be 335g , 8HL after .
 
I doubt you did... I've actually done it, it's not several layers, it's 20+
I cannot be bothered to count .
Several is non specific, could be 20, quite thick . not that technical . Just keep cutting squares and sticking them on until the wieght matches the sensor.
Why do you think it is difficult?
 
That works if you like the weight/balance of the racquet with the extra weight. I had a Textreme 95 that once I put on an overgrip and the Sony Sensor ended up being around 348g, 11 pts head light. I preferred that racquet without the extra weight. I would have liked to see Prince come out with the same spec (335g, 8 HL) WITH the 10g trap door, so it would still be 335g , 8HL after .
True, I have weighted the racquet around the sensor.
 
I cannot be bothered to count .
Several is non specific, could be 20, quite thick . not that technical . Just keep cutting squares and sticking them on until the wieght matches the sensor.
Why do you think it is difficult?

Nice try on the save, try actually stick 20 plus layer of tiny lead tape and come back tell me it's easy, just admit you haven't done it and be done with it.
 
Nice try on the save, try actually stick 20 plus layer of tiny lead tape and come back tell me it's easy, just admit you haven't done it and be done with it.
Not that tiny. About 15mm x 19mm , unless you have excessively large chubby fingers ?
 
Not that tiny. About 15mm x 19mm , unless you have excessively large chubby fingers ?

Yeah keep trying to save, never saw anyone use several to refer to 20+. Also most people or even tennis shop only have half inch leadtape, must also be easy to get 15mm x 19mm that's not commonly used for modding tennis racquet.
 
Yeah keep trying to save, never saw anyone use several to refer to 20+. Also most people or even tennis shop only have half inch leadtape, must also be easy to get 15mm x 19mm that's not commonly used for modding tennis racquet.
Extremely easy . Wilson lead tape is about 14/15mm (Imperial size ). Cut one strip to 19mm on a wooden chopping board . Then place on top of lead strip and keep cutting until desired weight is achieved. It really isn't that tricky, give it a go , it will only take a few minutes .
 
I guess you are all 7.0 pros hitting 130 mph serves, but nobody on this board will notice a 2 g 1 pt difference.
You just think you do, but if somebody modified your racquet like that without telling you?
No difference, guaranteed.

But again, I'm probably just a crappy tennis player not to notice such stuff.
 
Extremely easy . Wilson lead tape is about 14/15mm (Imperial size ). Cut one strip to 19mm on a wooden chopping board . Then place on top of lead strip and keep cutting until desired weight is achieved. It really isn't that tricky, give it a go , it will only take a few minutes .

No idea where you get them, all my local pro shop only have 1/2 and 1/4... Also pic?

Lastly I've done it, took me a long ass time, I really like to see your finished trap door.
 
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