The ULAC Coursier GT Pro is the heavy-duty evolution of the original Coursier design, specifically built for seasoned bikepackers and endurance riders. With a massive 3.8L capacity, it nearly doubles the storage of standard bar bags, providing enough room for significant layers, specialized tools, or a full day's worth of nutrition.
Constructed from advanced waterproof fabric, this "Terrain" edition features a rugged, outdoor-inspired aesthetic. It’s not just about internal volume; the GT Pro is designed with external modularity in mind, featuring a front multistrap system and elastic bands to secure a mini-pump or a windbreaker for instant access.
Massive 3.8L Capacity: A high-volume cylindrical bag that bridges the gap between a small accessory pouch and a full-sized touring roll.
Waterproof Construction: Utilizes high-grade waterproof nylon and polyester fabrics paired with a water-resistant zipper to protect electronics and clothing.
Front Multistrap & Elastics: Specialized external attachment points allow you to lash a pump or jacket to the outside of the bag, saving internal space.
Signature Eyelets & Carabiner: Features the iconic ULAC front eyelet system for clipping on sunglasses, lights, or keys with the included triangular carabiner.
Stabilized 3-Point Mount: Uses two heavy-duty Velcro straps for the bars and a secondary multistrap for the head tube, ensuring the bag doesn't bounce on rough terrain.
On-the-Go Storage: Includes quick-access side mesh pockets for small items like gel wrappers or energy bars.
| Feature | Specification |
| Volume | 3.8 Liters |
| Dimensions | 240 mm (W) x 140 mm (Diameter) |
| Weight | ~290 g |
| Material | Waterproof Nylon + Polyester |
| Mounting | 2 x Velcro + 1 x Multistrap |
| Included | Shoulder Strap & Triangular Carabiner |
Long-Distance Bikepackers: If you are planning multi-day trips where internal storage for bulky items like a down jacket or a large tool kit is non-negotiable.
All-Weather Explorers: The combination of waterproof fabric and padded protection makes it a safe haven for expensive cameras or electronics in unpredictable climates.
Modular Gear Users: If you appreciate being able to attach gear to the outside of your bag for quick transitions between riding and stopping.
Small Frame Owners: With a 140mm diameter, ensure you have enough vertical clearance between your handlebars and the front tire, especially on bikes with small frames or suspension forks.
Minimalist Road Racers: If you only need to carry a phone and a spare tube, the 3.8L size might be overkill; a 1.5L Coursier Sprint would be more aerodynamic.
Out-Front Computer Users: The large diameter may interfere with some out-front GPS mounts. You might need a "bridge" mount or a stem-top mount to ensure your computer remains visible.
The GT Pro includes a removable shoulder strap, which is a game-changer for bikepacking. When you stop at a cafe or a campsite, you can unclip the bag in seconds and carry your valuables with you as a crossbody bag. Because of its 3.8L size, it can get quite heavy when fully loaded; always ensure the head tube stabilizer strap is pulled tight to prevent the bag from sagging into your cables or front tire.
