Harley Softail Brembo GP4-RS Brake Upgrade | Radial Caliper Install

Upgrading the braking system with a set of Brembo GP4-RS radial monoblock calipers. In this video, I walk through the final install process and cover fitment details, hardware considerations, and first impressions once everything is bolted up. The GP4-RS calipers are a serious performance upgrade, offering increased stopping power, improved lever feel (Linnier), and better heat management compared to stock braking components. If you’re building a performance Softail or looking to level up your braking confidence, this setup is hard to beat. 🔧 What’s Covered in This Video: Brembo GP4-RS radial caliper overview Install process and mounting considerations Pad alignment and rotor contact check Brake line and hardware notes Initial brake feel and performance impressions This install is part of dialing in the bike to match the power and suspension upgrades — because speed is fun, but control is everything. Camera ‪@insta360‬ 💬 Drop a comment if you’re running Brembo calipers or thinking about upgrading your braking setup. 👍 Like, Subscribe & Hit the Bell for more Harley performance installs, suspension, and build updates. #Brembo #GP4RS #BremboBrakes #HarleyBrakes #RadialCalipers #HarleyPerformance #SoftailMods #FXLRST #M8Softail #BrakeUpgrade #PerformanceHarley #MotorcycleBrakes #PhoenixThrottleCo