View Full Version : Stiffness of AK90 - anyone put one on an RDC?

08-25-2009, 08:06 AM
I'm curious to know the RDC-measured stiffness of an Asian K Factor Tour 90 (AK90). Posters have compared it with the US K90 in old posts - some say it's about the same, others say it's more flexible. I think it's difficult to compare stiffness when the frames are so different in static weight and swingweight.

Has anyone put an AK90 on a Babolat RDC to measure stiffness? Or does anyone have the RDC + AK90 to do it?

Short of that, AK9/USK90 users now have several years of play with these frames. I'd be interested in hearing any updated impressions of how these frames compare in terms of stiffness.

08-26-2009, 01:50 AM
bumpety bump

08-26-2009, 05:05 AM
In my experience, Japanese are always more flexible than Americans:twisted:

08-26-2009, 09:05 AM
I wish I had your experience!:oops:

08-26-2009, 10:28 AM
I had my AN90 measured on a swingweight machine (NOT RDC) along with a RDS001 mid, the AN90 measured 69 and 001mid 68. There is 1 point difference and that sounds about right since in TW specs, a N61 90 is 66 and 001mid is 65. So its safe to conclude there is no difference in stiffness between the Asian N61 90 and US version.

08-28-2009, 06:41 AM
Thanks Rexking - that's good to know.

Anyone put an AK90 on an RDC?