[How to Tutorial] [Bike Mod] GV250 GV125 GV125C H-D Aftermarket Pillion Backrest

Custom Hyosung GV250 & GV125C: Harley-Davidson Pillion Backrest Mod

Are you looking to improve the passenger comfort on your Hyosung GV250 Aquila or GV125C? One of the most popular styling and comfort upgrades for these cruisers is the addition of a sissy bar or pillion backrest. While official Hyosung accessories can be hard to source, this DIY tutorial explores how to adapt Harley-Davidson aftermarket parts to fit the GV-series frame.

This specific modification focuses on using just two main brackets. For the fabricators and CNC hobbyists in our community, this is an excellent opportunity to create custom metal sheets that bridge the gap between the Hyosung fender rails and standard H-D backrest mounting points. By using high-quality steel or alloy, you can achieve a “factory look” for a fraction of the price of OEM parts.

Why use Harley-Davidson aftermarket parts?

The aftermarket support for Harley models is vast, offering various heights, pad styles, and finishes (chrome or matte black). By following this guide, Hyosung riders can tap into that market to give their 125cc or 250cc cruiser a unique, custom look while ensuring their passenger feels secure during longer rides. Whether you are building a “bobber” style or a full touring rig, this mod is a great starting point.

Disclaimer: This tutorial was contributed by a community member. HyoRiders does not take responsibility for any structural modifications made to your motorcycle. Always ensure your bolts are torqued correctly and use thread-locker where necessary. Download the full technical PDF guide below for step-by-step instructions.

Note: If you have successfully completed this mod, please share your photos in the main forum gallery to help other riders with their builds!