Kastaplast K1 Hard Järn - Joey Buckets Tour Series 2026
Flight numbers
Full specifications & PDGA data
| Mold | Järn |
|---|---|
| Plastic | K1 Hard |
| Type | Putter |
| Diameter | 21.3 cm |
| Height | 1.8 cm |
| Rim depth | 1.4 cm |
| Rim thickness | 1.3 cm |
| Inside rim diameter | 18.8 cm |
| Rim depth / diameter ratio | 6.6% |
| Rim configuration | 51.5 |
| Flexibility | 9.77 kg |
| Max weight | 176.8 g |
| PDGA approved | Yes — cert 21-136, Dec 2021 |
Physical dimensions and certification are published by the PDGA. Flight numbers are published by Kastaplast.
The Järn is an overstable approach disc with a flat top and a strong, dependable fade. It has little glide, so it stays where you aim it, and is used for controlled approaches, spike hyzers, forehand upshots and shots into wind.
About K1 Hard plastic: K1 Hard is a firmer version of Kastaplast's K1 blend, with a stiffer feel and less flex. It is durable and holds its flight for a long time.
Joey Buckets Tour Series 2026. The disc image is a reference only. Stamp colour may vary.
The Järn is an overstable approach disc with a flat top and a strong, dependable fade. It has little glide, so it stays where you aim it, and is used...