Quick Summary
The XLAB Stealth Pocket 500 C is a bolt-mounted top tube bag for triathlon and gravel bikes. It mounts behind the stem and is shaped for a streamlined fit around the front of the bike, with dual SUPER-SLIDE zippers for access from either direction.
The bag also uses insulated sides, a plastic stiffener, a non-porous nylon exterior, a reflective silver lining, and an anti-slip base. It is listed at 0.69 liter and 101 g.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Product type | Bolt-mounted top tube bag for triathlon and gravel bikes. |
| Mounting style | Bolt mounts onto bike bosses behind the stem. |
| Access | Dual SUPER-SLIDE zippers allow opening from either direction. |
| Capacity | 0.69 liter, which is suited to a small on-bike storage load. |
| Weight | 101 g. |
| Exterior | Non-porous nylon exterior with reflective silver lining. |
| Support features | Insulated sides, plastic stiffener, and anti-slip base. |
What to Compare Before Buying
- Mounting points: This bag bolts to bike bosses, so check that your frame has the needed bosses in the right position.
- Front-end clearance: The rounded nose and tapered tail are meant to work around cables that enter the frame behind the stem, so compare that shape with your bike layout.
- Storage size: The stated 0.69 liter capacity is small, so compare it with the amount of nutrition or other items you plan to carry.
- Access style: Dual zippers matter if you want to reach contents from either side while riding or stopped.
What Else You May Need
You need a bike with the required bosses for bolt-mounted installation.
Before You Decide
Confirm the bolt-mount setup, the available frame space behind the stem, and whether the 0.69 liter size matches what you want to carry. If your bike routing or boss placement is different, choose another top tube bag style.





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