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Profile Design - 52 ASA Aerobar Extensions
Profile Design - 52 ASA Aerobar Extensions
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PROFILE DESIGN - 52 ASA AEROBAR EXTENSIONS
Introducing the 52ASA – the next evolution of our wildly popular Aero Shaped Carbon (ASC) extensions, now available in a sleek, high-performance aluminum. Crafted with an advanced multi-stage forming process, the 52ASA brings the same arm-hugging benefits of our iconic shaped extensions, all at a more affordable price.
The core innovation behind both the ASC and ASA series is simple: shift the extension sideways to seamlessly align with your arm’s natural position, while keeping a 22.2mm mounting area to stay compatible with most standard aerobars.
With the 52ASA, we’re setting a new standard for “best value shaped extension” – a bold step in our ongoing mission to deliver high-performance solutions for riders of all levels.
Performance
The sole purpose of extensions is to provide a comfortable position for the riders hands relative to the armrests. They enhance performance by allowing the rider to relax into their optimal position. Which is why we provide different fit options so each rider can chase their best performance.
Origin
Recent Trends in aerobar fit have been towards higher hand positions, so we've increased the rise compared to previous generation extensions. We have focused on the most popular angles from our previous range and added the 26a as a multi position option.
Tech Guide
- Profile Design extensions have a 22.2mm diameter in the clamping area.
- They are designed for cables to be routed out the rear of the extensions so do not have cable exit holes.
Who is it for?
The extensions will fit in any aerobar that is designed for 22.2mm. So can be used by any rider wishing to improve the comfort of their aerobar grips.
Tech 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
Shipping
Shipping
Click & Collect – Free
Order online & collect at our Onehunga store.
NZ Shipping Costs
- General Items: $10/item
- Bikes & Frames: $120 (North Island) / $199 (South Island)
- Large/Bulky Items: $30 (North Island) / $60 (South Island)
- Helmets: $20 (North Island) / $25 (South Island)
Rural: Extra fee applies — select “Rural Delivery” at checkout.
International Orders – Contact info@rouleurcycles.co.nz for a quote.
Bike Shipping
- Fully assembled, tuned & safety‑checked before dispatch.
- Carefully boxed (minimal reassembly required).
- Recommend mechanic check before first ride.
Timeframes
- General: 3–5 working days (+1–2 for rural)
- Bikes: 5–7 working days (up to 10 remote) + prep time for build/boxing
- Delays may occur during holidays or courier disruptions.
Tracking & Issues
- Tracking emailed once dispatched.
- Contact the courier first for delays. Need help? Email or call us.
- Report damaged/lost parcels within 3 days.
No PO Boxes – Physical addresses only.
Why Buy From Rouleur?
Why Buy From Rouleur?
Trusted NZ Bike Experts – Locally owned & operated with years of experience helping Kiwi riders get the most out of their bikes.
Custom Builds & Personal Fitting – From road to e‑bikes, we tailor every build to your riding style and goals.
Fast, Reliable Shipping – In‑store stock ships next business day. Supplier stock delivered in as little as 3–5 days.
After‑Sales Support That Rides With You – From servicing to upgrades, our workshop team is here for the long haul.
