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XLAB Stealth Pocket 500 C – Bolt Mounted Aerodynamic Top Tube Bag for Triathlon and Gravel Bikes

Free shipping on orders over $29.99

$49.95

$ 23 .99 $23.99

In Stock

About this item

  • Versatile and Easy Access – Mounts directly behind your bike’s stem, providing quick and easy access to nutrition. Dual SUPER-SLIDE zippers with a non-slip rubber zipper pulls help you open the bag from either direction and with quick, easy access.
  • Secure, Worry - Free Installation – Securely and quickly bolts onto your bike’s bosses. Designed with soft, non - slip surfaces where the bag meets the frame. This lets the bag rest gently against the frame without scratching or damaging it. Easily removed for cleaning. The bag’s rounded nose and tapered tail are a good option for bikes with brake and shift cables that enter the frame directly behind the stem.
  • Smart Storage: The sleek, element-deflecting exterior provides additional protection, durability. Makes it easy to wipe away nutrition residue or condensation. Insulated sides + a plastic stiffener help slow down heat build-up or the frozen cold all while protected from accidental hits. Large enough to carry 1 large nutrition bar and 5 gels or up to 7 gels.
  • Increased Aerodynamics: Mounting the bag directly behind the stem or cables reduces overall drag caused by your stem and headset spacers. The overall shape conforms to the 5:1 airfoil ratio resulting in a streamlined low drag aero profile. Reduced drag mean more speed with less effort.
  • Material and Spec – Non - porous nylon exterior. Reflective silver lining. Proprietary insulation material. Anti-slip base. High stitch count embroidery. Volume: 0.69 liter (42 cubic in)), Weight: 101g


XLAB Stealth Pocket 500 C – Bolt Mounted Aerodynamic Top Tube Bag for Triathlon and Gravel Bikes


Ryan Stephens
2025-08-19 15:01:14
This thing is really high quality. Great to keep a couple of gels or some tools and store them in something that won't cause a huge visual or aero loss.
NoLooseChange
2025-07-17 10:50:17
The bag connects to your bike with screws. I add protective tape on the bike first so the bag wouldn’t damage the finish and reinforced the bag with large washer to ensure the screw heads don’t wear though. Great setup, study and useful. Even added Velcro to secure a tubular battery within bag to keep phone charged on long rides.
Matthew Zisman
2025-07-10 14:49:46
This is a great add to a triathlon bike. Slim design does not exceed top tube width. Easily holds 5 gels (6 would seem cramped). Easy access zippers. Material seems to be good for sweating and spilling sports drink on. Makes accessing food much easier in aero position, and since tri jerseys/suits have small pockets compared to cycling jerseys, the extra nutrition space is really helpful.
Coralgabler
2025-05-25 17:47:19
Too expensive but works fine.
Marjorie R. Jones
2025-05-23 16:08:10
Waste of money. Too small
Lena
2025-05-03 14:10:57
We bought these for one set of bikes and went and bought them again for a second set of bikes we absolutely love them.They are small, but they do not get in the way
Mini Wheat
2025-04-29 11:36:25
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Randy Becker
2025-04-12 11:43:27
Fits great on my Dimond tri bike. It's not the best looking on my bike, but aero and does the job perfectly.Well done xLab.I can fit enough for a 70.3 or long training ride.
Claudio R.
2025-03-14 18:05:11
Compatibilità perfetta con BMC TM02, ospita comodamente ca. 4 barrette, anche 6 se scartate e dimezzate. Ingombro minimo sul telaio, la doppia cerniera è molto comoda e scorrevole. All'interno una forma di plastica semi rigida garantisce la forma alla struttura esterna.
Christopher Davies
2025-01-30 16:18:44
Hint. If you want a bit more space inside the bag, take out the inner hard plastic insert and cut off the two plastic ‘wings’ that give the bag it’s ‘aero’ shape. You need to put the long rectangular floor piece back in so you can screw it back into the bike. With this modification I can get an extra 3 gels in the bag.
Mr. J. A. Haigh
2024-11-26 16:02:30
Great product - can fit lots of nutrition in (for potential UK users, I got six Nakd bars in there today), so I'll bolt this onto the bike and fill it up afterwards. Would recommend it and seller. Thanks.
SEEMA PIRKHAN
2024-11-24 19:42:28
Good product
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