RADE Seatpost Rear Cargo Assembly

Fits Hiboy S2 / S2 Pro / S2 SE / KS4 / KS4 Pro / Max

Transform your Hiboy into a true utility commuter.

The RADE Seatpost Rear Cargo Assembly is a lightweight modular cargo support system engineered for the Hiboy S2, S2 Pro, S2 SE, KS4, KS4 Pro, and Max platforms. Designed for commuters, grocery runs, daily carry, and urban utility riding, the system mounts via the seatpost to provide a stable cargo platform for baskets, milk crates, delivery bags, and modular accessories — without compromising ride feel or scooter handling.

Unlike generic scooter baskets that mount directly to handlebars or flimsy rear brackets, the RADE system uses structural support members and reinforced mounting architecture to create a cleaner, more stable cargo platform designed for real-world daily use.

Built for riders who actually use their scooters.

Features

• Fits Hiboy S2, S2 Pro, S2 SE, KS4, KS4 Pro, and Max
• Seatpost-mounted rear cargo platform
• Stable cargo support geometry
• Lightweight structural design
• Compatible with milk crates and utility baskets
• Modular accessory mounting capability
• Improved load stability over generic scooter baskets
• Commuter-focused utility design
• Clean integrated appearance
• Hardware included
• Easy installation

Ideal Uses

• Grocery runs
• Daily commuting
• Delivery riding
• Lock and gear storage
• Backpack-free riding
• Campus transportation
• Urban utility setups

Construction

• Structural carbon fiber support system
• Reinforced seatpost mounting interface
• Corrosion-resistant hardware
• Modular cargo mounting platform
• Engineered for vibration resistance

Compatibility

Compatible with:

• Hiboy S2
• Hiboy S2 Pro
• Hiboy S2 SE
• Hiboy KS4
• Hiboy KS4 Pro
• Hiboy Max

Important Notes

• Seatpost must be installed on the scooter
• Cargo basket/crate may be sold separately depending on selected configuration
• Intended for urban and commuter cargo applications
• Always secure cargo properly before riding

RADE develops premium utility systems for modern personal mobility platforms — combining lightweight engineering, modular functionality, and clean integrated design.