CG3 Pro Side Loader Bottle Cage

What Our Gearhead® Experts Are Saying:

"The Hi Line CG3 Pro Side Loader Bottle Cage is the cage I reach for when a rider's frame geometry makes top loading impractical, which comes up more often than people expect on modern aero and endurance builds. The ability to set access direction before installation is a genuinely useful feature, and the aluminum and thermoplastic construction holds up without adding weight where you do not want it. Once it is dialed in, it disappears into the build completely."

Modern frame design has made the simple act of grabbing a bottle more complicated than it used to be. Aero tube profiles, integrated cable routing, and frame bag setups all create scenarios where a top-loading cage puts your bottle in an awkward position or an outright inaccessible pocket. The Hi Line CG3 Pro Side Loader Bottle Cage is engineered around that reality, offering pre-installation rotation to set left or right side access so the cage works with your frame geometry rather than against it.

The construction pairs an aluminum alloy frame with a thermoplastic base, a combination chosen deliberately for what each material contributes. The aluminum delivers the structural rigidity that keeps a full bottle locked in place through hard efforts, rough road surfaces, and out-of-saddle accelerations where flex in a lesser cage would translate directly to unwanted movement. The thermoplastic base keeps the weight profile lean without introducing brittleness into the parts of the cage that take the most handling stress during bottle exchanges.

For riders building out performance-oriented road, gravel, or endurance rigs where bottle accessibility and frame compatibility both factor into component selection, the CG3 Pro handles both considerations without requiring any compromises on either side. Set the access direction once during installation, and the cage disappears into the build, doing its job reliably every ride without asking for any further attention.