Long Top Tube Bag

What Our Gearhead® Experts Are Saying:

"The Almsthre Long Top Tube Bag has become a permanent fixture on my road build. The bolt-on mount paired with the stem tether eliminates every bit of movement I had with strap-only bags, and the 1.0L capacity handles everything I need for a long training day without the bag sitting up high enough to interfere with my position. The AquaGuard zipper is genuinely waterproof, and the ripstop fabric has taken some real abuse without showing any wear."

Storage on a performance road or TT bike has always involved a tradeoff between capacity and aerodynamic penalty, and the Almsthre Long Top Tube Bag is designed to push that tradeoff as far in the rider's favor as possible. The extended, low-profile shape keeps the bag's frontal area minimal while delivering a full 1.0L of usable storage, sized at 14 inches long by 1.5 inches wide by 3 inches tall to sit cleanly along the top tube of bikes with lower stack heights where taller bags create cockpit interference or positional compromise.

Mounting is handled through a three-point system that gives riders genuine flexibility and security. Strap attachment suits frames without top tube bolts, while direct bolt-on compatibility with standard top tube mounting hardware eliminates the movement that purely strap-based systems can introduce over rough roads. A steerer and stem tether cord acts as a third contact point, anchoring the front of the bag independently of the top tube and removing the last source of vibration or lateral shift under hard efforts or technical terrain.

The single waterproof AquaGuard zipper seals the main compartment against rain and spray without the stiffness or durability tradeoffs of lighter water-resistant closures, and a front cord access port routes cables or earphone cords cleanly without compromising the weather seal. Silicone grippers bonded to the underside of the bag prevent side-to-side migration on rough road surfaces, and adjustable Velcro straps with anti-chafe protection can be trimmed to exact length for a frame-specific fit that leaves no excess strap material. The weather-resistant ripstop fabric rounds out a bag built for the demands of fast, all-conditions riding, where storage needs to work as hard as the rider carrying it.