Silicon-steel springs with high carbon content. heat-treated. dynamically balanced. kiln painted. designed and calculated for each specific application.

Modellek:
- APRILIA SCARABEO 100 2T (for Multivar and original variator - rigidity increase compared to original spring: +5%)
- BENELLI K2 100 2T (for Multivar and original variator - rigidity increase compared to original spring: +5%)
- ITALJET MILLENNIUM 100 2T (for Multivar and original variator - rigidity increase compared to original spring: +5%)
- MBK BOOSTER 100 2T (for Multivar and original variator - rigidity increase compared to original spring: +5%)
- MBK NITRO 100 2T (for Multivar and original variator - rigidity increase compared to original spring: +5%)
- MBK OVETTO 100 2T (for Multivar and original variator - rigidity increase compared to original spring: +5%)
- YAMAHA AEROX 100 2T (for Multivar and original variator - rigidity increase compared to original spring: +5%)
- YAMAHA BW'S 100 2T (for Multivar and original variator - rigidity increase compared to original spring: +5%)
- YAMAHA NEO'S 100 2T (for Multivar and original variator - rigidity increase compared to original spring: +5%)