Product description
SR25 Retro Arms SiCr Spring with Progressive Irregular M130 Coil
Main spring made of chromium-silicon steel, for Long type gearboxes.
The progressive coil makes it easier to wind the spring without losing its power.
Spring dimensions:
Inner: 11.3 mm
Outer: 14.5 mm
Length: 185 mm| Colour | Grey |
| Product weight [g] | 15 |
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