Contents
  1. Overview
  2. Flight characteristics
  3. Recommended uses
  4. Plastics & variants
  5. History
  6. Notable throwers
  7. Similar discs

The Kastaplast Grym X is a 12-speed stable to overstable distance driver. With published flight numbers of 12 / 5 / -1 / 3, it is most often described as suited for long controlled distance drives for power arms, forehand drives that resist turning over.

Overview

The Kastaplast Grym X is a 12-speed distance driver rated 12/5/-1/3.[2] It is the more overstable counterpart to Kastaplast's original Grym — the X denotes extra stability — and Disc Golf Puttheads describes the flight as a high-speed line that resists turn and finishes with a strong, reliable fade.[2] The rim measures 2.2 cm, wide enough to be genuinely fast while still gripping like a workable driver.[1] PDGA specifications: 21.2 cm diameter, 1.6 cm height, 1.1 cm rim depth, 176.0 g maximum weight.[1] The mold is now out of production.[3]

Flight characteristics

Flight numbers: manufacturer vs. community
SourceSpeedGlide TurnFade
Kastaplast (mfg) 12 5 -1 3 Published spec
Discpedia community Loading ratings…

Flight numbers describe the published behavior of the disc when thrown at its design speed. Real-world flight varies with plastic, weight, age, and thrower power. The community-averaged numbers above reflect crowd-sourced observations from real throws — typically slightly more understable than the manufacturer's published values, which is the most consistent pattern across nearly every commercial mold.

Disc Golf Puttheads recommends the Grym X for forehands, flex lines, and drives into headwinds where other drivers would turn over, noting it holds a straight line before finishing left for a right-handed backhand without dumping early.[2] Advanced arms get penetrating flights that fade reliably at the end, and the smooth rim and torque resistance make it a favourite for sidearm control drives and skip shots.[2] Newer players will generally lack the arm speed for a full flight, but can still use it as a wind driver or overstable distance option.[2]

Best for:

  • Long controlled distance drives for power arms
  • Forehand drives that resist turning over
  • Flex lines that finish with a dependable fade
  • Headwind drives where a neutral driver would flip

Plastics & variants

The Grym X is available in the following plastic blends from Kastaplast:[3]

K1, K1 Glow, K1 Soft

Plastic blend significantly affects flight character. Premium plastics like Champion, Z, or C-Line generally fly more overstable when fresh and hold their stability over time. Base plastics like DX, Pro, or Active beat in faster and become more understable workhorses with use.

History

The Grym X was PDGA-approved on April 6, 2016 (certification number 16-26) by Kastaplast AB of Sweden.[1] It arrived as the beefed-up sibling of the original Grym and became one of the brand's most recognizable power drivers, produced in K1, K1 Glow and K1 Soft; Puttheads notes the K1 Glow version reads a touch more overstable, which suits windy conditions and strong forehands.[2] Kastaplast has since retired the mold — it no longer appears anywhere in the company's current disc lineup, which lists Guld, Krut, Impa, Rask, Vass and Älva as its distance drivers.[3] Because Kastaplast removed the product page, there is no live official listing to cite for the Grym X; the specifications here come from the PDGA certification record.[1][3]

Notable throwers

Currently no information

Similar discs

References & further reading

Sources

Content on this page has been cross-checked against the following sources. Numbered citations in the prose above link to the matching entry here.

  1. Grym X — PDGA Equipment Certification (approved 2016-04-06, cert 16-26)
  2. Kastaplast Grym X Flight Chart — Disc Golf Puttheads
  3. All Discs — Kastaplast official lineup (Grym X absent; confirms out of production)

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