I've just found the specs of the above mentioned racquets:
Yonex Vcore Tour 97
- Composition: Elastic Ti/High Modulus Graphite.
- Beam: 20 mm.
- Head Size: 97 sq. in. .
- Length: 68,50 cm.
- String Pattern: 16 - 19.
- String Tension: 26 - 24 Kp.
- Weight (unstrung): 310 g.
Yonex Vcore Tour 89
same composition, beam, length, string pattern and tension
different
- Head Size: 89 sq. in. .
- Weight (unstrung): 325 g.
My guess is that the 97 version is probably an update of RD TI 80 Lite.
Tour 89 Pic:
Tour 97 Pic:
Now, I "only" have to find Tour 97 for a test, to compare with the Vcore 98
and RD TI 80 Lite that I already own.
Yonex Vcore Tour 97
- Composition: Elastic Ti/High Modulus Graphite.
- Beam: 20 mm.
- Head Size: 97 sq. in. .
- Length: 68,50 cm.
- String Pattern: 16 - 19.
- String Tension: 26 - 24 Kp.
- Weight (unstrung): 310 g.
Yonex Vcore Tour 89
same composition, beam, length, string pattern and tension
different
- Head Size: 89 sq. in. .
- Weight (unstrung): 325 g.
My guess is that the 97 version is probably an update of RD TI 80 Lite.
Tour 89 Pic:
Tour 97 Pic:
Now, I "only" have to find Tour 97 for a test, to compare with the Vcore 98
and RD TI 80 Lite that I already own.