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nex-gensports

Aero cage-less water bottle

(2 customer reviews)

$44.99

Includes frame mounting bracket, screws and brush.

The Nex-Gen ‘cage-less’ aero water bottle is the world’s first truly cage-less drink bottle designed to fit bicycle frames of all shapes and sizes with potential to reduce overall weight and significantly enhanced aerodynamic features resulting in less drag.

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Description

AERO CAGE-LESS WATER BOTTLE
• Volume: 500mL
• UCI approved
• Colors: Black or white
• Material: HDPE – FDA approved toxin free
• Cleaning brush included

MOUNTING BRACKET
• Size: Fits all standard 65mm waterbottle cage screw threads
• Color: Black
• Material: High-density Nylon reinforced with glassfiber
• Screws: 2-pieces standard M5 titanium included

WARRANTY
5 years unconditional.


The Nex-Gen ‘cage-less’ aero water bottle is the world’s first truly cage-less drink bottle designed to fit bicycle frames of all shapes and sizes with potential to reduce overall weight and significantly enhanced aerodynamic features resulting in less drag.

The patented bottle holder mount which attaches to any bicycle frame using industry standard water bottle threads at 65 mm spacing. The mount is manufactured from IM –FRP resulting in low cost, low weight with maximum durability and strength. The mounting bracket replaces the industry standard external water bottle cage which is designed to only work with cylindrical water bottle shapes.

The aero-shaped water bottle features a unique and patented internal receptor cavity that is moulded when creating the bottle shape using a new and unique moulding technique. The bottle cavity and mount mate securely when the bottle is fixed in place. Upward pressure on the bottle releases the bottle from the mount. Refitting is simplified because of the funnel-shaped entry to the bottle cavity.

Additional information

Weight 0.115 kg
Dimensions 10 × 10 × 20 cm
Select color

Black, White

Tech talk

Concept designer: Paul Farrell
Aerodynamics modelling & development: Paul Lew

aero bottle cage system

HISTORY

The humble water bottle has been a part of cycling since the earliest records of humans riding bicycles.

Racing cyclists up until the 50’s used to carry glass and later aluminium bottles in leather pouches or eventually wire cages mounted to their handlebars.
Italian professional rider Rene Vietto is credited as being possibly the first to place a water cage onto the frame down tube. This eventually became universally adopted.

Despite changes to cage and bottle materials, the basic design of the cylindrical water bottle held in place by an external cage has remained virtually unchanged since despite significant advances in the understanding of cycling aerodynamics and drag.

BACKGROUND

The traditional cylindrical sports drink bottle is inherently a significant cause of turbulence and hence drag when placed either on the down or seat tube of any bicycle frame.

Several attempts to semi-integrate the external bottle cage into the bottle shape have been demonstrated but with little practical advantage.

aero bottle cage system

The Nex-Gen aero cage-less system completely removes the water bottle external cage and integrates it into the aerodynamically tuned bottle shape for use on either the down or seat tube of any bicycle frame using standard industry mounting points.

aero bottle cage system
Cage mount: Nylon fiber reinforced PA6. 100% recyclable.
Aero bottle: FDA approved food grade PP (Polypropylene). BPA, BPS and BPF toxin free. 100% recyclable.

DURABILITY & TESTING

Over 12 months in development, the aero cage-less design has been subjected to the most rigorous fatigue and impact test regime to ensure all components are long lasting, easy to use and will not disengage from the bicycle even under extreme shock conditions (both full and empty).

AERODYNAMIC TEST DATA

An extensive set of comparison modelling has been conducted which clearly demonstrates the significant reduction in drag of the aero cage-less product compared to a regular cylindrical water bottle.

The values in black are DRAG. The values in red are LIFT.

The average drag for a traditional round bottle from 0° to 30° yaw attached to a 51mm round down tube is 207 grams.

The aero bottle from 0° to 30° degrees yaw attached to a 51mm round down tube produced an average value of 115 grams of lift (not drag). This difference represents an amazing saving of 6.5W for the original proof-of-concept design.

The table shows separate components of lift and drag in increments of 5° yaw angles for both bottles representing the lift, drag and total lift + drag at every yaw angle (0 degrees - 30 degrees).

bottlecage drag table

Round Bottle - 0° Yaw

Round Bottle - 15° Yaw

Round Bottle - 25° Yaw

Nex-Gen Aero Bottle - 0° Yaw

Nex-Gen Aero Bottle - 15° Yaw

Nex-Gen Aero Bottle - 25° Yaw

2 reviews for Aero cage-less water bottle

  1. Brett – Australia

    Privileged to be involved with this simple but awesome product. Required some adjustment to the early prototypes but now spot on. Wish I’d had these back in the day. Loads of admiring enquiry from the coffee shop bunch – Could have sold dozens!

    Disclaimer: This endorsement is provided by a professional test rider who did not purchase the item.

  2. Fred (verified owner)

    Why didn’t somebody do this before? Very clean and simple to use, just like a regular round bottle without the drag and cage bottle scratches!
    Tried for months to make it fall off my bike – Not happening. Hand grips are a nice touch. Some x.small frames will have trouble fitting two without an adapter? Not sure if this improved my times as conditions during the UK winter too variable to measure – But it sure felt faster and lighter. My two bobs worth – Get one.
    ‘Fast Fred – UK’

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2 reviews for Aero cage-less water bottle

  1. Brett – Australia

    Privileged to be involved with this simple but awesome product. Required some adjustment to the early prototypes but now spot on. Wish I’d had these back in the day. Loads of admiring enquiry from the coffee shop bunch – Could have sold dozens!

    Disclaimer: This endorsement is provided by a professional test rider who did not purchase the item.

  2. Fred (verified owner)

    Why didn’t somebody do this before? Very clean and simple to use, just like a regular round bottle without the drag and cage bottle scratches!
    Tried for months to make it fall off my bike – Not happening. Hand grips are a nice touch. Some x.small frames will have trouble fitting two without an adapter? Not sure if this improved my times as conditions during the UK winter too variable to measure – But it sure felt faster and lighter. My two bobs worth – Get one.
    ‘Fast Fred – UK’

Add a review

Your email address will not be published. Required fields are marked *