The Profile Design Rear Hydration Mount provides a clean and adjustable solution for increasing hydration and storage capacity on race day and during long training rides. Mounting directly to standard 7 mm saddle rails, it sits neatly behind the saddle and allows riders to carry one or two bottles without affecting cockpit space or front-end setup.

An adjustable arch clamp system provides up to 14° of tilt adjustment, allowing bottle angle and position to be fine-tuned for improved accessibility and compatibility across different saddle setups and rider positions.

Designed to sit close behind the saddle, the system creates a streamlined setup while adding valuable carrying capacity for longer events and training sessions.

Ideal for: riders needing additional hydration capacity for Ironman, 70.3 and long-course training.

Bike Fit Note: For long-course racing, hydration and nutrition planning often extends beyond simply adding bottles to the bike. During bike fits I regularly help athletes determine the best way to carry fluids, nutrition and race essentials while maintaining comfort, accessibility and aerodynamics.

• Material: Precision machined and stamped 6061-T6 aluminum

• Adjustment: 14 degrees of tilt adjustment

• Cage Material: Injected Nylon/Glass Fiber (Vise Cage)

• Capacity: 1 or 2 cage compatible 

• Cage: Vise

• Color: Matte Black

• Weight: 200G

* Includes 2 lightweight Profile Design Vise Cages

The Profile Design HSA 800 EVO is a between-the-arms hydration system designed to provide convenient access to fluids while maintaining a clean and aerodynamic front-end setup. Positioned between the aerobars, it allows riders to stay hydrated without frequently leaving the aero position, helping maintain comfort and efficiency during training and racing.

The updated EVO design incorporates a flexible drinking hose with magnetic retention, an integrated Garmin mount and an improved rear cap system that can be removed for easier cleaning and maintenance. A secure refill port helps reduce splashing, making race-day refills quick and straightforward.

The redesigned mounting system offers improved compatibility across a wider range of aerobar setups, while the high-retention cage keeps bottles secure over rough roads and race conditions. The setback mounting design also allows the bottle to sit further back between the extensions, improving accessibility and reducing interference with narrower armrest positions.

The bottle itself has been shaped to minimise frontal area and integrate cleanly into the cockpit, helping maintain an aerodynamic setup without compromising practicality.

Ideal for: riders wanting an integrated between-the-arms hydration setup with easy access and improved aerobar compatibility.

Bike Fit Note: For long-course athletes, hydration systems form part of the overall bike setup rather than just acting as a bottle holder. During bike fits I regularly help athletes optimise hydration and nutrition storage so everything remains accessible without compromising comfort or aerodynamics.

Specs

• Bottle Construction: BPA-Free, Food safe HDPE Bottle

• Bottle Capacity: 27oz (800ml)

• Compatibility: HSA 800 EVO Bottle or use with Standard Cycling Water Bottle

• Computer Compatibility: Garmin: Mount is optional and can be removed.  (Wahoo: Adapters available via 3rd party purchase).

• Cage / BTA Construction: Injected nylon/glass fiber construction

• Mount offset: 30mm

• Mount drop: 10mm

• Extension Width Requirement: 80mm - 120mm (center - center)

• Colors: Black

• Weight: 387g (System), 100g (Bracket Only)

The Profile Design stem offers a clean, lightweight and stiff design, making it a reliable option for both road and triathlon setups. Available in lengths from 60–130 mm and either a 7° or 17° angle, it can be installed in a positive or negative position to help fine-tune your fit and front-end position. Constructed from 3D forged 6061-T6 aluminium and paired with a 4-bolt faceplate for a secure and stable connection.

Ideal for: riders looking to optimise reach, stack and front-end position during a bike fit.

Bike Fit Note: Stem changes can significantly alter comfort, handling and position. If you're unsure which length or angle is right for you, recommendations are included as part of my bike fitting process.

Specs

• Weight (100mm):  167g (±7°) / 162g (±17°)

• Length: 70, 80, 90, 100, 110, 120, 130mm (±7°)

• Material:  3-D Forged 6061-T6 Aluminum

• Clamp Diameter: 31.8mm

• Angle: 83° (±7°)

• Steerer Tube Diameter:  11/8in

• Stack Height: 40mm

• Clamp Width: 40mm

• Clamp Tourque: 5Nm

• Finish: Matte Black with White Accents

The Profile Design Riser Kit allows you to easily adjust aerobar stack height to fine-tune your riding position. By adding height beneath the aerobar brackets, risers can help improve comfort, support position changes over longer distances, or achieve a more optimal aerodynamic setup.

Kit includes 2 risers and 4 bolts specific to the kit size

Ideal for: riders needing front-end height adjustments or refining comfort and aerodynamics during a bike fit.

Bike Fit Note: Small changes in aerobar stack height can have a significant impact on comfort, power output and aerodynamics. If you're unsure which height is right for you, recommendations are included as part of my bike fitting process.

Specs

• Compatibility: Sonic Ergo (26a,39a,52a,35a, 43a, 45/25a, 50a, 52GMR and 45ar), Supersonic Ergo (35a, 45/25a and 50a), Subsonic Bracket, J3 Bracket and J2 Bracket, T+ Carbon Series, T+ Aluminum Series Aerobars

• Includes: 2 risers and 4 bolts specific to the kit size

• Maximum Height: Kits available in 15mm (5, 10 or 15mm), 20mm, 30mm, 40mm, 50mm, 60mm or 70mm

• Clamp Diameter: 31.8mm

• Weight: 10mm - 14g, 5mm - 7g

The Profile Design Supersonic Bracket provides the same modular platform as the Sonic system, supporting your extensions, armrests and risers while offering increased adjustment flexibility.

Compatible with Profile Design risers, armrests and extension systems, the Supersonic system expands available cockpit positioning with additional reach adjustment for riders needing greater extension range.

Key difference: Compared with the Sonic bracket, the Supersonic provides additional reach adjustment for riders requiring a longer cockpit setup.

Ideal for: riders needing extra cockpit length or greater fit flexibility.

Specs

• Materials: Forged 6061-T6 AL

• Stack Height: 42mm

• Width Adjustment: 37mm

• Basebar Clamp Diameter: 31.8mm

• Extension Clamp Diameter: 22.2mm

• Color: Black

• Weight: 266g

The Profile Design Sonic Bracket forms the foundation of your aerobar setup, connecting to the base bar and supporting your extensions, armrests and riser system. Designed to provide a highly adjustable front-end setup, it allows riders to refine position and comfort across a wide range of fit requirements.

Compatible with Profile Design risers, armrests and extension systems, the Sonic bracket offers a clean and versatile platform for building your aerobar setup.

Key difference: The Sonic uses a standard reach adjustment range and suits the majority of rider positions.

Ideal for: riders looking for a clean, adjustable setup with standard cockpit reach.

Specs

• Materials: Forged 6061-T6 AL

• Stack Height: 42.6mm

• Width Adjustment: 37mm

• Basebar Clamp Diameter: 31.8mm

• Extension Clamp Diameter: 22.2mm

• Color: Black

• Weight: 234g

The Profile Design Race+ Armrest is designed to provide increased support and security through a more cupped arm shape. Its deeper profile helps cradle the forearm, creating a more locked-in feel and improving stability while riding in the aero position.

At 124 mm in length, the larger contact area helps spread pressure more evenly across the forearm for improved comfort on longer rides. An updated surface pattern also enhances grip and helps manage sweat to keep you feeling planted during training and racing.

Compatible with current and recent Profile Design aerobar systems.

Ideal for: riders wanting a more secure, supported feel or those using narrower or more aggressive aero positions.

Bike Fit Note: Armrest shape can significantly affect upper body comfort and stability. More supportive armrests can help riders maintain position for longer with less fatigue.

Specs

• Bolt Spacing: 15mm

• Reach Increment: 15mm

• Width Increment: Variable

• Length: 124mm

• Stack: 16mm

The Profile Design Ergo+ Armrest is designed to improve comfort through a flatter support platform, allowing riders greater freedom to move and naturally settle into their preferred arm position.

The extended 124 mm length increases forearm contact area, helping distribute pressure more evenly and reduce discomfort during longer rides. An updated surface pattern improves grip and helps wick away sweat for greater comfort and control.

Compatible with current and recent Profile Design aerobar systems.

Ideal for: riders who prefer a more open feel with greater movement and a less restrictive support position.

Bike Fit Note: Armrest shape influences comfort, support and sustainability in the aero position. The right setup often comes down to rider preference and individual fit requirements.

Specs

• Bolt Spacing: 15mm

• Reach Increment: 15mm

• Width Increment: Variable

• Length: 124mm

• Stack: 16mm

The Profile Design 39a Aluminium Extensions are designed around modern high-hand aerobar positioning, offering a 39° grip angle to create a comfortable and sustainable hand position while maintaining an aerodynamic posture. The shape allows riders flexibility in how they position their hands — holding higher can encourage a more shrugged aero position, while a lower grip creates a more open posture with improved visibility and head position.

To further fine-tune fit, the 39a incorporates a small lateral offset, allowing riders to narrow or widen hand position without excessive extension rotation. This can improve comfort and achieve cleaner hand positioning without compromising shifter clearance.

Additional aerodynamic shaping has been incorporated into the rise section, while ergonomic end caps improve hand comfort during longer rides and races.

Compatible with any aerobar system designed around a standard 22.2 mm clamp diameter.

Ideal for: riders chasing a modern high-hand position with flexibility to refine comfort, aerodynamics and hand placement.

Bike Fit Note: Extension shape and angle can significantly affect comfort, shoulder position and aerodynamics. The ideal extension is highly individual and recommendations are included as part of my bike fitting process.

Specs

• Construction: 6061-T6 aluminum, pre-drilled for bar-end shifter cable routing

• Extension Length: 400mm

• Extension Angle: 39 Degrees

• Extension Rise: 87mm (bottom to top)

• Extension Offset: 15mm total

• Outer Diameter: 22.2mm

• Inner Diameter: 19.2mm

• Shifter Compatibility: Electronic or Mechanical

• Includes: Sold as a Pair (1 Right and 1 Left Extension)

• Colors: Anodized Matte Black

• Weight: 206g/pair

• Min Length: mm (from the front of clamp)

The Profile Design 52 ASA Aluminium Extensions are designed around modern high-hand aerobar positioning, featuring a 52° grip angle combined with a shaped design that follows the natural position of the arms. By incorporating a lateral offset into the extension itself, the 52 ASA creates a more natural arm and hand alignment while maintaining compatibility with standard 22.2 mm aerobar systems.

This shaped design helps riders achieve a narrow and supported position without requiring excessive extension rotation, improving comfort and creating a cleaner front-end setup. The higher hand position can also assist riders in achieving a more relaxed and aerodynamic posture during longer efforts.

Constructed from aluminium using an advanced forming process, the 52 ASA delivers the fit benefits of shaped extensions in a durable and cost-effective package. Ergonomic end caps further improve comfort at the hand contact point during training and racing.

Compatible with any aerobar system designed around a standard 22.2 mm clamp diameter.

Ideal for: riders seeking a modern high-hand position with improved arm alignment, support and long-distance comfort.

Bike Fit Note: Extension shape can significantly influence comfort, shoulder posture and aerodynamic sustainability. Different hand angles and shapes suit different riders, with recommendations included as part of my bike fitting process.

Specs

• Construction: 6061-T6 aluminum, pre-drilled for bar-end shifter cable routing

• Extension Length: 340mm or 400mm

• Min Length: 340mm: 225mm or 400mm: 285mm (from the front of clamp)

• Extension Angle: 52 Degrees

• Extension Rise: 137mm (bottom to top)

• Extension Offset: 16mm total

• Outer Diameter: 22.2mm

• Inner Diameter: 19.2mm

• Shifter Compatibility: Electronic or Mechanical

• Includes: Sold as a pair (1 Right and 1 Left Extension)

• Colors: Anodized Matte Black

• Weight: 400mm: 304g/pair or 340mm: 250g/pair

The Profile Design 45/25 SLC Carbon Extensions are designed to provide multiple hand position options while maintaining a lightweight, high-performance setup. Featuring a dual-angle design with a 45° rise transitioning into a 25° grip section, riders can comfortably hold the extensions higher for a shrugged aerodynamic position or lower for a more open posture with improved head position and visibility.

A subtle lateral offset built into the extension allows hand position to be adjusted narrower or wider without excessive extension rotation, helping maintain cleaner positioning and avoid shifter interference.

Constructed using Profile Design’s Super Light Carbon technology, the 45/25 SLC combines reduced weight with improved integration, including compatibility with Aeroport Di2 adaptors for a cleaner electronic shifting setup. Ergonomic end caps further enhance comfort during long training sessions and race efforts.

Compatible with any aerobar system designed around a standard 22.2 mm clamp diameter.

Ideal for: riders wanting a lightweight extension with flexibility in hand position and modern high-hand fit options.

Bike Fit Note: Extension angle can significantly influence comfort, shoulder posture and aerodynamic sustainability. Multi-position designs can be particularly useful when fine-tuning a position or balancing comfort with performance.

Specs

• Extension Length: 400mm

• Extension Angle: 45 Degrees / 25 Degrees 

• Outer Diameter: 22.2mm

• Includes: Sold as a Pair (1 Right and 1 Left Extension)

• Construction: Carbon

• Colors: Matte Black

• Weight: 70g/pair

The Profile Design 43 ASC Carbon Extensions are designed to combine aerodynamic performance, comfort and support into a highly refined extension system. Built using Aero Shaped Carbon technology, the shaped profile takes advantage of carbon’s ability to create complex forms that improve airflow while maintaining excellent strength and stiffness.

Featuring a 43° grip angle and an 87 mm rise, the 43 ASC is designed to place the wrists in a more neutral position, helping riders relax into a comfortable and sustainable aero posture. A relaxed upper body often leads to improved comfort, reduced tension and a position that can be maintained more effectively over long distances.

The wrist and forearm area has been shaped to increase support and contact area, improving stability and comfort while also smoothing airflow around the rider. The design has been refined to balance aerodynamic performance with control and long-duration comfort.

Pairs particularly well with Race+ and Ergo+ armrests to create a highly supportive front-end setup.

Compatible with any aerobar system designed around a standard 22.2 mm clamp diameter.

Ideal for: riders seeking a premium aerodynamic extension with increased support, improved comfort and a modern high-hand position.

Bike Fit Note: Hand position and support can have a significant impact on comfort, shoulder posture and aerodynamic sustainability. Small changes at the contact points often create some of the biggest gains in long-course comfort and performance.

Specs

• Extension Length: 340mm or 400mm

• Min Length: 290mm (from the front of clamp)

• Extension Angle: 43 Degrees

• Extension Rise: 107mm (bottom to top)

• Extension Offset: 16mm total

• Outer Diameter: 22.2mm

• Inner Diameter: 

• Includes: Sold as a Pair (1 Right and 1 Left Extension)

• Construction: Carbon

• Colors: Matte Black

• Weight: g/pair