Streetbox Carline Springs: Equipped with dirt-specific progressive

Springs: Equipped with dirt-specific progressive or linear springs optimized for vintage MX geometry

shiny finish reduces surface roughness and friction — hence ZERO Friction

the correct fork oil

See the menu below for the available raise/lower options for your motorcycle

The stock rear shock uses a very hard spring that compresses minimally

Streetbox Carline Springs: Equipped with dirt-specific progressiveThe 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.