The Restrap Race Top Tube Bag is part of Restrap’s ultralight “Race” series—designed for fast-paced bikepacking, audax, and ultra-endurance events. With a 1.5-litre capacity, rigid structure, and weatherproof materials, it aims to provide quick access to essentials without interfering with your pedalling or cockpit setup.
In this review, we assess the Race Top Tube Bag’s construction, fit, usability, and long-term durability, with a focus on how it performs for minimalist riders and multi-day adventures.
Key Specifications
| Feature | Detail |
|---|---|
| Capacity | 1.5 litres |
| Weight | ~120 g |
| Dimensions | 370 mm (L) × 110 mm (H) × 45 mm (W) |
| Material | X21 technical waterproof fabric |
| Zippers | YKK Aquaguard two-way zip |
| Mounting | Velcro + Hypalon + bungee |
| Side Pockets | Stretch mesh (both sides) |
| Made In | United Kingdom |
Design and Build Quality
Rigid, Waterproof, and Built to Last
The Race Top Tube Bag is constructed from X21 technical waterproof fabric, paired with a 6oz nylon inner lining and YKK Aquaguard zippers. The result is a bag that shrugs off rain, mud, and abrasion while maintaining a sleek, low-profile silhouette.
- Rigid plastic inserts help the bag retain its shape, even when empty
- Two-way zipper allows access from front or rear
- Reflective logos on both sides improve visibility in low light
- Reinforced Hypalon base protects against frame rub
The craftsmanship is top-tier—stitched cleanly, reinforced at stress points, and clearly designed with longevity in mind.
Mounting and Stability
Rock-Solid Fit with Minimal Fuss
The bag attaches via:
- A wide Velcro strap at the front (around the head tube)
- A narrower rear strap with a plastic buckle
- A bungee cord system that loops around the steerer tube
This three-point system keeps the bag exceptionally stable, even on rough gravel descents or technical singletrack. The narrow 45 mm width ensures it stays out of the way of your knees—something many top tube bags struggle with.
Storage and Organisation
Smart Layout, Roomy Interior
With a 1.5-litre capacity, the Race Top Tube Bag hits a sweet spot between minimalism and utility. It’s large enough to hold:
- A smartphone or GPS unit
- Power bank + charging cable
- Snacks, gels, or electrolyte tabs
- Arm warmers or a lightweight buff
- Multi-tool or CO₂ inflator
Inside, you’ll find:
- Four internal sleeves for organisation (though they’re quite narrow)
- Elastic strap for securing a phone or battery pack
- Two external mesh pockets—ideal for wrappers, lip balm, or a small snack bar
The only downside? The internal sleeves are horizontal and tight, making them less useful for on-the-fly access.
On-the-Go Usability
One-Handed Access, Glove-Friendly Zips
The YKK Aquaguard zippers are smooth and reliable, with toggles that are easy to grab even with gloves. The rigid structure means the bag doesn’t collapse when unzipped, so you can open and close it with one hand while riding.
- Zipper toggles are glove-compatible
- Two-way zip allows flexible access
- No cable port, which may be a drawback for riders charging devices on the go
Despite the lack of a dedicated cable port, the bag’s layout makes it easy to route a cable through the zipper if needed.
Weather Resistance
Built for British Weather
The combination of X21 fabric, sealed seams, and Aquaguard zippers makes this bag highly weather-resistant. In testing, it held up to prolonged moderate rain without any water ingress.
- Zipper garage helps prevent leaks
- Waterproof lining adds redundancy
- Double-bagging valuables is still recommended in heavy storms
While not submersible, it’s more than capable of handling typical UK conditions.
Real-World Performance
Streamlined, Durable, and Surprisingly Spacious
Over several multi-day rides and gravel events, the Race Top Tube Bag proved to be:
- Unobtrusive—no knee rub, even on aggressive frames
- Secure—no wobble or sway, even when loaded
- Convenient—easy to access while riding
- Durable—no signs of wear after weeks of use
It’s become a core part of our bikepacking setup, especially for storing items we want to access without dismounting.
Pros and Cons
Pros
- Excellent build quality and weatherproofing
- One-handed access with glove-friendly zippers
- Rigid structure holds shape when empty or full
- Narrow profile avoids knee interference
- External mesh pockets are genuinely useful
- Made in the UK with sustainable practices
Cons
- No cable port for charging devices
- Internal sleeves are narrow and hard to access on the move
- Premium price (~£65) compared to budget options
Comparison: Restrap Race Top Tube Bag vs Apidura Racing Long vs Brooks Scape
| Feature | Restrap Race (1.5L) | Apidura Racing Long (2L) | Brooks Scape (0.9L) |
|---|---|---|---|
| Capacity | 1.5 litres | 2 litres | 0.9 litres |
| Weight | ~120 g | ~160 g | ~100 g |
| Waterproofing | Yes (X21 + YKK) | Yes (Hexalon + welded) | Yes (PU-coated) |
| Cable Port | No | Yes | Yes |
| Price (approx.) | £64.99 | £74 | £49.99 |
| Best For | Fast, light setups | Max capacity + charging | Compact, stylish use |
Final Verdict: Is the Restrap Race Top Tube Bag Worth It?
If you’re looking for a high-quality, weatherproof, and stable top tube bag that won’t interfere with your ride, the Restrap Race Top Tube Bag is one of the best options available in 2025. It’s ideal for bikepackers, endurance racers, and gravel riders who want quick access to essentials without compromising aerodynamics or comfort.
While it’s not the cheapest option, its build quality, thoughtful design, and UK-made craftsmanship make it a smart investment for serious riders.
