XLAB Delta 400 Rear Water Bottle System

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Curbside Pickup

XLAB Delta 400 Rear Water Bottle System

The Delta 400 is XLAB's lightest and stiffest adjustable rear carrier with repair storage options. The Delta 400 mounts your bottle to the saddle rails placing it where it is not only easy to reach, but is also hiding in your wind shadow. This is an aerodynamic solution with no measurable drag, unlike frame-mounted bottles.

The carbon fiber XLAB Gorilla XT cage holds your bottle most tightly and requires 14 lbs of grip force to remove the bottle.

Use this as your only bottle for a short ride, or to refill an aerobar mounted system.


  • Aerodynamic: Hides in rider's draft
  • Mounts to saddle
  • Fits most saddles (For ISM Adamo Saddles with Transition Hook, Adamo Attack™, and PN1.1 models, choose the XLAB Delta 425.)
  • Highly adjustable: Can adjust cage angle and cage height
  • Stable design: Uses locking hardware and a strong, sturdy mount
  • Tightest grip cage: Takes 14 lbs of grip force to pull a bottle out
  • Takes standard water bottle for easy swapping and easy clean-up
  • Compatible with Aero Pouch 300 Bag or Multi-Strike Repair Holder


  • Mount
  • Gorilla XT cage
  • Installation hardware and instructions
More Information
Manufacturer's Part #2294
MaterialAircraft aluminum mount, carbon fiber bottle cage
Weight141.5 g