Database › Isometric › ISO-300L
Discontinued
Isometric series
ISO-300L
Isometric 300 Long
2001–2001
Archive photo wanted
Isometric · 2001

Isometric 300 Long

Model ISO-300L

Balance
Head-light
Stiffness
Not documented
Weight
3U
Made in
Not documented
Rarity
★★☆☆☆
Market value
No verified sales yet
Original MSRP $115
¥14,000 Japan list price excl. tax, 2001, at that year's average rate
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Price history

No verified sales on record yet, so we don't publish a market value for the Isometric 300 Long. Asking prices don't count — only completed sales do. A price chart appears once 3 clean verified sales are logged.

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Isometric 300 Long: Yonex Japan’s navy Long of 2001, not Peter Gade’s Isometric 300

One season in Yonex Japan’s lineup

The Isometric 300 Long was a navy blue, all-carbon Isometric that Yonex Japan marked as new in its April 2001 racquet lineup, under item code ISO300L. It lasted one model year: the racquet was still on Yonex Japan’s current list in February 2002 and gone by April, and Yonex Japan’s old-model index then filed it with its 2001 models. Only Yonex Japan’s pages document it, and no export name for it is known. Its name invites a mix-up with the “Isometric 300” Peter Gade remembered from his teens, an earlier racquet.

Head-light, supple and Long

Yonex Japan’s product page lists an all-carbon frame and shaft and a single weight, 3U, in grip sizes 4 and 5, with a soft case supplied with the frame. Its copy describes a head-light (Yonex’s word is 先軽, “light at the tip”), supple Long racquet built for outstanding shuttle flight, and credits the Isometric head shape with a large sweet spot. In the same 2001 lineup Yonex Japan called the long Ti 10 “10 mm Long” against a regular size of 664 mm overall; the 300 Long’s page carries the line’s Long-size mark but prints no length. Yonex recommends 15–18 lb for the mains and 17–20 lb for the crosses, with BG80 for hard hitters and BG85 for control players. It gives no stiffness word, balance figure or country of manufacture.

Not Peter Gade’s Isometric 300

No player is documented using the Isometric 300 Long. Its name overlaps with an earlier racquet. In Yonex’s Legendary Players feature, Peter Gade recalled “my ISOMETRIC 300, which I used as a teen pro” as “a revolutionarily flexible model”, and Wikipedia’s uncited equipment list for him gives an “Isometric 300” up to 1997. Gade’s teens ended in December 1996, more than four years before Yonex Japan introduced the 300 Long, so his racquet was a different one. No Yonex catalog or product list on record shows a plain Isometric 300; Yonex USA’s 1999 Isometric page carries an export Isometric Tour 300, which has its own page, and no source says whether that was Gade’s.

One navy frame, one Long sibling

Yonex Japan documented one design, navy blue (color 019), and no edition. Its Isometric companions in the 2001 lineup were the Ti Swing Power, the 750 Muscle and the cheaper Isometric 250, which has its own page. The turquoise Isometric 400 Long, documented a year earlier, had left the list with the 2000 models. The two Longs share the all-carbon build and the 3U weight but differ in color, case and recommended tension (14–16 lb mains for the 400 Long); Yonex never calls one the successor of the other.

¥14,000 and one model year

Yonex Japan listed it at ¥14,000 before tax for the frame with a soft case, between the Isometric 250 at ¥12,000 and the 750 Muscle at ¥19,000. The racquet left the current list in spring 2002, and Yonex Japan filed it with its 2001 models in the old-model index, which kept its page online for years afterwards. A listing that shortens the name to “Isometric 300” may mean a different racquet. No verified sales are recorded yet.

Mix-ups rather than fakes

No counterfeit of the Isometric 300 Long is documented. The likelier errors are of identity: an “Isometric 300” may be Gade’s 1990s racquet or the export Tour-300, a turquoise frame of the same build is the 400 Long, and the 1992 Isometric 500 is also navy. Yonex’s description of the frame’s printed graphics is not documented, so the full model name and the navy finish are the checks.

A Long in a range full of Longs

The 300 Long dates from a period when Yonex sold Long versions across its range. Yonex’s 2000 Asian catalog lists Long Ti-10, Ti-8, Ti-7 and Ti-6 frames, a Swing Power 500 Long and a Carbonex 20 Long in its spec chart, and Yonex USA’s 1999 Isometric page an Isometric-250 Long. Among them the 300 Long is one of the plainest: all carbon, one weight and one color, without the titanium mesh or Muscle Power Frame of its pricier 2001 companions.

Authentication

Yonex Japan’s specification for the Isometric 300 Long: item code ISO300L; navy blue (019); all-carbon frame and all-carbon shaft; 3U only, grip size 4 or 5; Long size; head-light; sold as a frame with a soft case. Yonex prints no country of manufacture for it, so a made-in claim needs the frame’s own marking. A turquoise frame of the same build is the 400 Long, and a 2U frame is not a 300 Long. How the model name appears on the frame is not documented: match it to “300 Long”, not “Tour-300” or a bare “300”. On a frame about 25 years old, check the joint, the grommets and the hoop for cracks.

Outlook

For Isometric collectors the 300 Long is a one-season Japanese model with a complete Yonex Japan record: item code, list price, color, weight and recommended stringing. Its appeal lies in that clear identity, so confirm the navy finish and the full name, and treat any link to Peter Gade or to the 1990s as a mix-up with the earlier Isometric 300.

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