- EXPANDED STORAGE SPACE: Holds 7” phones, tools & snacks in the 12.2-inch compartment. Rigid EVA frame maintains shape with 2L capacity (28.5x24.5x18.5cm)
- 3-TOOL-FREE INSTALL IN 10 SECONDS: Secure the universal bike frame bag with 3 reinforced straps and a click-lock buckle (no screws or adapters). Adjust once, ride worry-free—unlike flimsy Velcro-only competitors
- ZERO THIGH RUB EVEN ON SINGLETRACK: Curved ergonomic design prevents chafing during aggressive climbs. Tested on mountain trails and road bikes—no more awkward leg adjustments
- WATER-RESISTANT IN DOWNPOURS: TPU-coated zipper and tightly stitched seams resist rain and splashes. Unlike basic bags, our weather-resistant bike top tube bag keeps essentials dry during heavy rides—no more soggy phone or tools
- NIGHT RIDE READY: Reflective ACRUNU logo boosts visibility in low light. Pair with lights for safer gravel bike touring or urban commuting after dark
Imagine cruising down a trail with everything you need within arm’s reach—your phone, snacks, and repair tools snugly tucked into a bag that never slows you down. The ACRUNU Top Tube Bag is designed for riders who demand easy access and reliability, whether you’re tackling rocky singletrack or racing on pavement.
Built Tough, Packed Smart
Crafted from tear-resistant 600D polyester, this commuter bike bag holds up to 2L of gear (28.5x24.5x18.5cm) and features a hidden zippered pocket for valuables. The rigid frame keeps its shape even when full, while the anti-slip base grips your bike securely.
No Wobbles, No Hassle
Our 3-point fixation system locks the bag in place on rough terrain. Adjust the straps once, and you’re set—no more mid-ride adjustments or distractions. Plus, the low-profile design clears space for carbon frames and hydration hoses.
Weatherproof Peace of Mind
Got caught in a downpour? The waterproof cycling triangle bag keeps your phone dry with its TPU-coated zipper and storm flap. Wipe off mud or dust with a damp cloth, and it’s as good as new.
Ride Safer, Day or Night
The reflective logo isn’t just branding—it’s a safety feature. When headlights hit it, you’ll stand out instantly during night gravel rides or foggy morning commutes.
Size: 11.22x9.64x7.28 inches / 28.5x24.5x18.5cm
Material: Heavy-duty polyester EVA foam padding
Gear up smarter. Click “Add to Cart” and make every ride smoother with ACRUNU.
