Streetbox Spring Color:Black (+$10) Material Quality: High-strength billet aluminum

Material Quality: High-strength billet aluminum caps and shot-peened steel springs for maximum durability

on-the-fly tuning

it's a transformation

High quality replacement shock absorber with a fixed reservoir

Streetbox Spring Color:Black (+$10) Material Quality: High-strength billet aluminumThe Hyperpro Streetbox! This streetbox contains a replacement progressive front fork spring kit set and an adjustable emulsion shock absorber. The springs and shock provide easier cornering, a shorter braking distance, improved tire life, give a better balance in the bike and better overall feedback of your bike. The shock features manual preload adjustment and rebound adjustment with 50 clicks. The shock is equipped with a black color progressive