Spring steel rocker arm suitable for the following mopeds with Beta 521 engine:
Total length: 35 mm
Ø Bore: 6.1 mm
Original spare part number: A8024
| Spring design | Leaf spring | 
| Manufacturer | Pony | 
| Material | Spring steel | 
| Total length | 35 mm | 
| Ø mounting hole | 6.1 mm | 
| Pony / Cilo (Beta 521 & 512) | Beta 512 Beta 521 (engine) | 
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