Suspension and Components› Shocks, Struts, Coil-Overs and Components

Hyperpro

Streetbox Progressive Fork Spring Kit and Shock Absorber Kit

$22.37

SKU: SB-KA06-6AT

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Hyperpro Streetbox is a suspension upgrade kit designed for the Kawasaki Z650. It includes a progressive front fork spring kit and an adjustable emulsion shock absorber. This kit aims to improve cornering, reduce braking distance, enhance tire life, and provide better bike balance and feedback.
Show original supplier description
The Hyperpro Streetbox is a comprehensive suspension upgrade solution for the Kawasaki Z650, designed to enhance the overall riding experience. This kit includes a replacement progressive front fork spring set and a fully adjustable emulsion shock absorber. The benefits of installing the Streetbox include easier cornering, a shorter braking distance, improved tire life, and better overall balance and feedback from your motorcycle. The shock absorber features manual preload and rebound adjustment with 50 distinct clicks, allowing for precise tuning. It also includes a separation piston, suitable for applications requiring horizontal mounting. The shock is built using Hyperpro's modular system, ensuring it is fully serviceable with replaceable parts. The shock absorber itself is equipped with a black progressive spring as standard, with a purple spring available as an alternative option.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHyperpro
Part NumberSB-KA06-6AT
CategorySuspension and Components
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy