Profile Design SubSonic Race 35a Aerobar

Aerobar | Product Code: MARLs-5385



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Auckland - Orewa

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Finance Options

12 months interest free finance is available on purchases over $250 with GEM and purchases over $300 with QCard.

The weekly amounts are a guide only. The weekly payment amounts above are calculated by spreading the amount financed over the term of the loan. The actual minimum monthly payments are 3% of the outstanding balance or $20, whichever is more. On expiry of the interest free term, the finance companies prevailing interest rate will apply to any outstanding balance. The minimum monthly payments of 3% or $20 will not pay off the purchase amounts within the promotional period. Credit lending criteria apply.

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The Subsonic/Race/35a aerobar combines the low stack Subsonic bracket with the arm hugging Race armrest to offer an industry leading fit range oriented towards low, narrow positions. The 35a extension offers a comfortable 35-degree angle with an 80mm rise. This is the only low stack clip on in the market that maintains the pad to grip angle as the bar is stacked up

Subsonic not just another aerobar bracket. It brings the next generation fit range to a low stack bracket design. This allows the bar to use riser kits to increase the stack without changing the relationship between the armrest and the grips. The Race armrest has been designed to tightly cup the rider's arms – facilitating a narrow position and increasing control at speed.


The Subsonic/Race is designed to achieve a lower stack height than standard aero bars, without the added frontal area of a below the basebar extension clamping system. This improves aerodynamics and the fit range.

Fit Data

Armrest offset: -85mm to -17.5mm in 7.5mm steps
Armrest Width: 142mm to 272mm in 18.5mm steps (with Extensions at 100mm)
Armrest Stack: The minimum is 40mm and the bracket is compatible with our existing risers which add up to 70mm of stack in 5mm increments.

The extension rotation can be easily adjusted using the shaft bolt. There is a 40mm range of extension length adjustment once the extensions have been cut.

There are 80 distinct position options achievable just by moving the armrests. Combine that with the risers and this bar offers 1200 possible configurations. As a clip on the bar, it is also possible to adjust the extension width and tilt easily. This is the most adjustable low stack clip-on on the market.

Origin Story

After Profile Design released the Supersonic (J5) as a premium bracket with market leading fit options and versatility they decided to bring the same kind of options to the rest of the range of brackets and thus aero bars.

Where the supersonic and Sonic brackets have a minimum stack of around 60mm, like most of the popular aero bars - we wanted the Subsonic to offer a substantially lower position. This helps the segment of the market who struggle to get into their ideal position with modern bike frames. And it was vital to include stack height adjustment without altering the pad grip relationship - so their riders have the ability to fine-tune every aspect of the setup.

The Race armrest shares the flippable design of the rest of the new generation armrests. By swapping sides or rotating the armrest smaller increments of movement are achieved - making it simple to fine-tune a rider's position or match the position from their previous aerobar or bike. Additionally - there are two thicknesses of cushion available to ensure a snug fit for different sized arms.

Who is it for

This bar is perfect for riders who wish to achieve lower positions that are possible with standard aerobar designs. Unlike other low stack bars, it allows for fine-tuning of the stack height so the rider is not limited to only one armpit height. With the Race armrests fitted it is tailored towards riders who intend to be low and narrow to punch the smallest possible hole through the wind.


bracket Subsonic
armrest Race / 5mm pads
extension length 350mm
clamp diameter 31.8mm
width 142mm to 272mm
weight 638g
colour Black


Bracket Subsonic
Armrest Race / 5mm pads
Extension Length 350mm
clamp diameter 31.8mm
Width 142mm to 272mm
Weight 638g



On all orders over $99 Evo Cycles offers free delivery to any non-rural address in New Zealand* - this includes large / bulky items and bike brands that are able to be shipped** 


On orders under $99 we charge $5 fee for non-rural addresses and $10 for rural addresses. This is so we can give our customers (that’s you!) the most competitive pricing available for small parts and accessories. There are no hidden shipping costs and you know exactly what you’re paying for.

*There is an additional $5 charge for all rural deliveries.
**Some brands, including Trek, Giant & Liv bikes are only available via Click & Collect or Evo Home Delivery as they must be fully assembled by a qualified bike mechanic in an approved store.


Free for all orders over $99. Orders under $99 a $5 flat shipping & handling fee applies. Order and pay online and collect everything from one of our showrooms. Just select which store you would like to collect from at checkout. Find out more about Click & Collect here.