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Multi-Buy Savings!
Code: 1878-XL
XLab Delta 300 Rear Mount System


  • Mounts directly to Quintana Roo Prsix & older Cervelo seatposts
  • Carry your rear hydration the aero way, tucked behind you
  • Complete sing bottle hydration system with mount & cage
  • Included Gorilla XT Cage grips a tight 14lb grip on bottle for zero bottle launches.
  • Carry your entire repair with the optional Multi-Strike Repair Holder

Replaces Frame Bottle

  • Standard frame-mounted bottles have high aerodynamic drag, so place your bottle at the rear instead. The DELTAS are mounted on the saddle rails for no measurable drag.

Refills Front Drink System

  • Use the Deltas to refill a front drink system. Just bring the spare bottle forward from the Delta and refill. If you have the popular XLab Torpedo aerobar mounted system then simply replace the empty front bottle with the spare bottle from the Delta.

Adds an Extra Bottle

  • These systems are also ideal for longer training rides or Century rides, where an extra bottle is necessary so you can have your favourite mix with you at all times.


  • Aerodynamic Location – Mounts to Cervélo seatpost, hiding in the rider’s draft allowing for clean aerodynamics and easy access. Great way to increase your speed
  • Stable Design – Strong, sturdy mounting. The material used on the carrier is high strength and will not sway, allowing for fast, safe access to the bottle
  • Versatile – 3 different mounting positions for a custom fit. Compatible with ISM Adamo saddles with transition hook
  • Special Cage Design – The cage design is funnel shaped allowing for easy insertion of your bottle
  • High Gripping Cage – The Gorilla XT Cage grips the bottle with 14 lbs of tested force to prevent slippage
  • Anti-Vibration – Using Loctite and locknuts, the screws are locked in place for safety and security


Delta 300 Includes:

  • 1 XLab Cage Mount
  • 1 XLab


  • Delta 300: Aluminium Mount, Carbon Fibre cage, Stainless Steel rod


  • Delta 300: 107g with Mount, hardware and cage


  • Delta 300: 3 Year Warranty on Mount and rod. Lifetime warranty on the Gorilla XT Cage.
Great bottle holders, good grip and no launching! Cheapest price around and quick delivery to Australia.