The Profile Design Neosonic ErgoAR Aero Bar (31.8 clamp, 240mm, black) gives me a bolt-on aero upgrade that holds a fast position I can keep. I get real fit range in pad width, reach, and extension angle/rotation. That makes it easier to stay comfortable while I push steady power. The lightweight aluminum build and matte black anodized finish suit road, gravel, and tri bikes. I also get secure modular clamping, repeatable adjustments, and race-day flexibility.
Key takeaways
- 31.8mm clamp compatibility: A 31.8mm clamp fits most modern handlebars, so I can add aero on road, gravel, or tri bikes with minimal fuss.
- High adjustability: High adjustability supports comfort and consistent power, including pad width/rotation plus extension angle/rotation with up to 80 positions.
- Fit range for reach and width: Armrest offset runs from -95mm to -42.5mm (7.5mm steps) and width runs from 124mm to 290mm (18.5mm steps), so I can fine-tune reach, breathing room, and aero shape.
- Simple stack: A fixed 59mm armrest stack keeps setup simple, and I can match an existing fit without chasing spacer stacks.
- Durable aluminum build: At 555g in aluminum, I get stiffness and crash tolerance over ultra-low weight, and I can cut the extensions to meet draft-legal length limits.
Dialed-In Aero Upgrade with Lots of Adjustability
The Profile Design Neosonic ErgoAR Aero Bar gives me a fast aero position without locking me into one fit. The 31.8mm clamp drops onto most modern bars, so I can add aero on a road, gravel, or tri bike with minimal fuss. I like that small angle and pad-width changes actually translate into comfort over long efforts, which keeps power steady.
Fit tweaks I rely on
I focus on a few adjustments that deliver the biggest payoff:
- Pad width and rotation to open my chest without stressing shoulders
- Extension angle to keep wrists neutral and reduce numb hands
- Fore-aft reach so I can stay low while breathing well
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Profile Design Neosonic ErgoAR Aero Bar – 31.8 Clamp, 240mm, Black
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Build, Finish, and Weight
The Neosonic ErgoAR uses lightweight aluminum that feels solid on rough pavement but doesn’t add needless bulk. I like the black anodized/matte black finish because it hides clamp marks and stays looking clean after repeated fit changes.
The listed weight sits at 555 grams (about 1.6 lb), which keeps the front end responsive while still giving me a confident, stiffness-forward cockpit. I pair it with a controlled torque routine using a torque wrench set, then keep bolts smooth with a quick hit from a compact multi-tool on race week.
For consistent hardware care, I also keep dry lube around for light corrosion protection on threads. Check current pricing and availability at Amazon here!
Profile Design Neosonic ErgoAR Aero Bar – 31.8 Clamp, 240mm, Black
This image is property of Amazon.com.
Extension Positioning and Rotation Options
I like how the Neosonic ErgoAR lets me tune extension length and rotation without getting stuck in a single “factory” posture. The top-bolt adjustment gives up to 80 different positions, so I can chase a sustainable aero stance and keep control when fatigue sets in.
How I dial in a sustainable aero posture
I start with small, repeatable changes and test them on steady efforts before race day. These steps keep the process clean and predictable:
- I set extension length first so my hands land naturally, then I lock in rotation for wrist comfort.
- I adjust in tiny increments and ride 20–30 minutes in-zone to confirm I can hold the position.
- I prioritize a neutral wrist angle and relaxed shoulders over “max slam” aggression.
- I re-check bolt torque after the first ride; a torque wrench helps me stay consistent.
- I do one final hardware pass with a compact multi-tool before long training days.
If I’m also updating my cockpit and maintenance habits, I keep essentials like dry bike lube on hand so shifting and drivetrain feel don’t distract from fit testing.
Check current pricing and availability at Amazon here!
Armrest Offset, Width, and Stack Adjustments
I rely on the Neosonic ErgoAR’s adjustability to dial in comfort without sacrificing aero consistency. Armrest offset runs from -95mm to -42.5mm in 7.5mm increments, so I can fine-tune reach in small steps and keep my shoulders relaxed. Armrest width spans 124mm to 290mm in 18.5mm steps, which helps me open the chest for breathing or tuck in for speed. Armrest stack stays fixed at 59mm, and I like that when I’m matching an existing fit or swapping cockpits without chasing spacer math.
My quick setup checklist
I set it up like this:
- Start mid-offset, then adjust one increment at a time.
- Widen first for stability, then narrow cautiously for aero.
- Confirm the 59mm stack matches my prior pad height before cutting anything.
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Race Versatility and Secure Modular Design
I like how the Neosonic ErgoAR keeps race-day options open without adding fuss. The extensions can be cut down to fit draft-legal/ITU-style limits, so I can run a compact, compliant position while keeping the same cockpit feel across events.
Once I set pad width, reach, tilt, and extension angle, the modular interfaces clamp down with a reassuring hold, so hard accelerations and rough pavement don’t nudge the fit. I also treat installation like any precision cockpit job: measure twice, cut once, and torque evenly.
For complementary setup work, I’ll pair it with a bike torque wrench to keep bolts consistent. Check current pricing and availability at Amazon here!
What to Know Before Buying
The Profile Design Neosonic ErgoAR Aero Bar uses high-grade aluminum, so I get dependable durability and strong corrosion resistance without paying carbon prices. Weight won’t hit the absolute minimum, but I gain crash tolerance and easier long-term ownership, especially if I travel or race often.
Fit range and adjustability
I’d buy this bar for its broad fit range. It supports experimentation, then locks in once I find my numbers. Before I commit, I check a few practical points:
- Stack and reach options: I confirm the extensions and pad mounts can hit my target position without extreme spacer stacks.
- Pad width and fore-aft: I make sure I can ride narrow for speed or wider for comfort, then fine-tune in small steps.
- Extension angle and hand comfort: I test whether the ErgoAR shape supports relaxed wrists during long efforts.
- Compatibility: I verify my base bar or cockpit clamp sizing and cable routing needs.
I keep a torque wrench handy for repeatable setup work, and I like having a shop-level option like a bike torque wrench set for controlled tightening.
Check current pricing and availability at Amazon here!
Disclosure: As an Amazon Associate, I earn from qualifying purchases.
I’m a computer engineer, musician, cyclist, and dabbling in photography.
