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progressive springs for the second stage
High-Performance Fork Springs: Wound from premium steel
Ready to bring your classic motocross racer back to life
After conversion
all in one durable
Streetbox Lowering Kits progressive springs for the secondThe Hyperpro Streetbox includes a progressive front fork spring kit and an adjustable emulsion shock. This comprehensive solution improves cornering, braking, and overall bike balance, making it ideal for street use.
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