For climbers and the workshops that resole them
RAToM rubber is racing-slick rubber, hand-processed in Japan and cut into sheets for climbing-shoe resoles. It is not a new product line. It is the same GP Rubber a workshop already chooses as GP ZERO, GP1, or GP2.
RAToM supplies resole rubber as sheets, not as a finished shoe. The material is reclaimed Grand Prix racing slick, finished by hand in Japan, then sent to European resolers. Climbers meet it on the last. Workshops meet it on the bench.
Ask a RAToM partner workshop which sheet belongs on your shoe. The cobbler chooses the compound for the last, the terrain, and how you wear rubber. If you want the difference between the three sheets, read GP ZERO vs GP1 vs GP2.
We supply professional workshops across Europe. Stock GP Rubber, then choose the sheet per job. The comparison page is the compound brief. The inquiry form is how you join the network.
| Compound | Feel | Shore (shop spec) | Workshop use |
|---|---|---|---|
| GP ZERO | Highest-friction sheet we cut. Limited supply. | ~54A | Performance resoles when the climber wants maximum smear and is willing to wear it faster. |
| GP1 | Soft, sensitive, the core performance sheet. | ~55A | Default recommendation for indoor and technical feet. Soft on a tiny edge. |
| GP2 | Firmer, more support, still the same racing-slick base. | ~65A | Everyday, training, and climbers who go through a soft sheet too quickly. |
Shore figures as published on shop.ratom.eu product pages (20 Aug 2026). They describe the sheet, not a lab certificate.
Full comparison: GP ZERO vs GP1 vs GP2.
Ask a partner workshop which sheet belongs on the last.
Workshops: stock the three sheets, choose per job, then join via the inquiry form.
Sheets if your workshop asks you to bring them: GP ZERO GP1 GP2