Compare Disc Golf Discs

Pick two or more discs and see exactly how they differ - flight, feel, distance, and price, side by side.

Build your comparison2 of 4 discs · ready

KastaplastGrymDistance Driver13/5/-1/2

RPM DiscsKahuDistance Driver13/5/-1/2

Grym vs Kahu

These 2 distance drivers share the same flight numbers - the deciding factors are plastic selection, price, and availability.

Key differences

Diameter21.2 vs 21 cm (+0.2)Height1.6 vs 1.5 cm (+0.1)Rim width2.2 vs 2.4 cm (-0.2)

Flight Paths

Overhead view · right-hand backhand

Tap to show / hide

Tap a disc to show or hide its path. Picks that share flight numbers are nudged apart so each one is visible. Estimated from flight numbers.

KastaplastGrymDistance DriverOut of Production

RPM DiscsKahuDistance Driver

Flight Numberslonger bar = more of that trait

SpeedRim & velocity

Grym

Kahu

GlideStays aloft

Grym

Kahu

TurnHigh-speed bend

Grym

-1

Kahu

-1

FadeLow-speed hook

Grym

Kahu

Specifications

Differences only

Spec

Kastaplast

Grym

RPM Discs

Kahu

Flight rating

13/5/-1/2

Stability

Stable (+1)

Beginner score

31/100

Est. carry

450 ft

Type

Distance Driver

Recommended skill

Intermediate, Advanced

Diameter≠

21.2 cm

21 cm

Height≠

1.6 cm

1.5 cm

Rim depth

1.1 cm

Rim width≠

2.2 cm

2.4 cm

Max weight≠

175.1 g

179 g

Bead

Beadless

Plastics

PDGA Approved≠

Yes

On Amazon

Not on Amazon

Production status≠

Out of production

In production

Price from≠

Not listed

$15.99

The Verdict

Grym or Kahu?

The Grym and Kahu fly almost identically (13/5/-1/2). Choose the Grym for far more plastic and weight options (0 blends) and easier availability; choose the Kahu to spend less.

Grym: StableKahu: Stable

Where to buy

Grym

See retailer

Out of production

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Kahu

$15.99

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FAQ

Is the Grym or Kahu more overstable?

They are equally stable (both +1) - turn -1/-1, fade 2/2.

Should a beginner pick the Grym or Kahu?

Both rate the same for beginners (31/100). Pick by feel and price.

What is the difference between the Grym and Kahu?

The Grym and Kahu fly almost identically (13/5/-1/2). Choose the Grym for far more plastic and weight options (0 blends) and easier availability; choose the Kahu to spend less.

View each disc