The Kastaplast Grym is a 13-speed understable distance driver. With published flight numbers of 13 / 5 / -2 / 2, it is most often described as suited for long s-curve drives on open fairways, tailwind distance bombs.
Overview
The Kastaplast Grym is a 13/5/-2/2 distance driver and was, by Kastaplast's own account, the company's longest-flying mold.[2] Kastaplast's product copy reads: "made for long and smooth S-curves and tailwind bombs. Grym is a workable big D driver for the common player, or a turnover hang glider for the bigger arms," adding that "with its clean thin shape and a comfortable 22 mm rim, Grym merges speed and glide into a workable goto driver."[2] The PDGA records the mold at 21.1 cm diameter, 1.8 cm height, a 2.2 cm rim and a 175.1 g maximum weight.[1] Grym is Swedish for cruel — or, colloquially, awesome.[2]
Flight characteristics
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.
Recommended uses
The Grym rewards a smooth release more than a hard one. Its natural shot is the long hyzer-flip that stands up, turns, and glides out — the reason it works for moderate arms who cannot power a stable speed 13.[2][3] Stronger throwers use it as a turnover and roller disc rather than a workhorse driver.[2] It is a tailwind and open-fairway disc: with -2 turn at speed 13 it is not a headwind mold, and several throwers report it plays flippier than the numbers suggest at low elevation.[3]
Best for:
- Long S-curve drives on open fairways
- Tailwind distance bombs
- Hyzer-flip drives for arms that cannot power a stable speed 13
- Rollers
- Wide-open turnover lines
Community notes — how players actually use this disc
Plastics & variants
The Grym is available in the following plastic blends from Kastaplast:[6]
K1, K1 Glow
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
Kastaplast's Grym was PDGA approved on 26 June 2015 under certification number 15-59, making it one of the Swedish maker's earliest distance drivers.[1] An overstable counterpart, the Grym X, followed on 6 April 2016 and eventually became the better-known of the pair.[4] Both molds were retired: Kastaplast discontinued the Grym, Grym X and Kaxe Z, marking the end with a single limited "last run" in a deep shimmering green before taking them out of production.[5] Neither Grym appears on Kastaplast's current distance-driver collection, which now lists Guld, Krut, Impa, Rask, Vass and Älva — for that reason no manufacturer URL is recorded here; the original kastaplast.se product page is no longer live and only survives quoted by retailers.[2][6] Retailers report that Kastaplast first announced the mold with preliminary flight numbers of 12/5/-2/2 before the final 13/5/-2/2 rating was settled; the 13-speed figure is what both Kastaplast and every current listing use.[3]
Notable throwers
Currently no information
Similar discs
- Innova Tern · 12/6/-3/2
- Dynamic Discs Sheriff · 13/5/-1/2
- Innova Mamba · 11/6/-5/1
References & further reading
- How to read disc golf flight numbers — Discpedia primer
- PDGA Approved Disc List — search for "Grym" to find the Kastaplast Grym entry (PDGA-approved 2015)
- Kastaplast official site — manufacturer product page
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.
- Grym from Kastaplast — PDGA approved-disc record (cert 15-59)
- K1 Grym — Only the Best Discs (quoting Kastaplast's official mold description verbatim)
- Kastaplast Grym — Infinite Discs product and review page
- Grym X from Kastaplast — PDGA approved-disc record
- Kastaplast Grym, Grym X and Kaxe Z Retired — Ace Runners Disc Golf
- Distance Driver — Kastaplast (current official collection, Grym absent)
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