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- USA
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Sonic Ergo 52a AerobarThe Sonic bracket offers an extensive fit range, low weight and easy adjustment along with minimal frontal area. Combining this with the Ergo armrest creates an aerobar that will aid most riders in optimizing their position for both speed and comfort. The 52A is one of the newest versions of our reliable aluminum extension range. FEATURES: Performance: The Sonic Ergo is designed to present minimal frontal area to create as little aerodynamic drag as
The Sonic bracket offers an extensive fit range, low weight and easy adjustment along with minimal frontal area. Combining this with the Ergo armrest creates an aerobar that will aid most riders in optimizing their position for both speed and comfort.
The 52A is one of the newest versions of our reliable aluminum extension range.
FEATURES:
- Performance: The Sonic/Ergo is designed to present minimal frontal area to create as little aerodynamic drag as possible. The main purpose of an aerobar is, of course, to get the rider into a fast position despite a fairly minimalist appearance the Sonic/Ergo offers a comprehensive fit range for exactly this purpose.
- Fit Data: The 52a extensions have a 52° for the grip. The rider can choose whether to hold high for the shrugged position or low for a more open, head up position.
- Armrest Offset: -70mm to -17.5mm in 7.5mm steps
- Armrest Width: 124mm to 290mm in 18.5mm steps (With Extensions at 100mm)
- Armrest Stack: 60mm (no riser kit) to 130mm in 5mm increments (With aftermarket Riser Kit)
SPECS:
- Bracket: Sonic
- Clamp Diameter: 31.8mm or (26.0 with Shim Kit - Shim Kit is sold separately)
- Armrest: Ergo / 10mm Pads
- Armrest Width: 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
- Armrest Offset: -70mm to -17.5mm in 7.5mm steps
- Armrest Stack: The minimum is 60mm and the bracket is compatible with our existing risers which add up to 130mm stack with (70mm of spacers added)
- Construction: 6061-T6 aluminum, pre-drilled for bar-end shifter cable routing
- Extension Length: 400mm
- Extension Angle: 52 Degrees
- Extension Rise: 87mm (bottom to top)
- Extension Offset: 15mm total
- Outer Diameter: 22.2mm
- Inner Diameter: 19.2mm
- Shifter Compatibility: Electronic or Mechanical
- Color: Anodized Matte Black
- Weight: 564g
- Bar Clamp: 6Nm (53 inlbf)
- Extension Clamp: 6Nm (53 inlbf)
- Armrest Bolts: 4.7Nm (42 inlbf)
- Bracket: 234g
- Armrest: 130g
- Extensions: 222g
- Total: 586g
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 157 reviews
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Product Reviews
★★★★★ 5
FANTASTIC FIT
Size: 16 Plus, Color: Washed Blue
I'm a 4'7" , 65 year old woman. Due to abdominal issues I needed jeans that give that extra something on the waist. I've tried on just about every brand of jeans ranging in size from adult/junior 6 to 12. If they fit on the legs the waist was huge. If they fit on the waist the legs and butt had enough room for me and a friend. I was resigned to wearing yoga pants and leggings with big shirts. My son mentioned that he loved the Amazon basics men's dress slacks, so I figured why not. First I looked at women's and juniors, and I knew from the measurements that I was still stuck. Then I remembered that about 15 years ago I'd buy girls pants (I was a size 12 in kids at the time) Looking at the sizes I knew a 12 was way too small, then I saw the 16 plus. With hesitation I bought them. Well glory be miss Agnes, THEY FIT. Comfortable, real jeans again. Sure, I have to take them up about 6 inches, but that's fine, not a problem. I'm just so happy to have real jeans again !!!
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Reviewed in the United States on November 30, 2023
★★★★★ 5
Love them!
Size: 7 Slim, Color: Washed Blue
I did but expect these jeans to fit so well and look so nice on my daughter. Hands down the best jeans I’ve purchased for her, much better fit and quality than the other stores! The length is perfect, but it’s a little snug in the waist. Still a great fit with some stretchiness! Great value!
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Reviewed in the United States on July 25, 2025
★★★★★ 5
Great pair of Jean and great price!
Size: 14, Color: Washed Blue, Size: 14, Color: Washed Blue
I can’t believe these were only $13. They feel and look like quality jeans, very basic/simple boot cut. My daughter says they’re stretchy and comfortable. I ordered her a size 14 (12’s fit her waist but are always too short) She’s 11 years old, 5’ tall, about 80lbs. The waist adjusters were great for the perfect fit.
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Reviewed in the United States on August 9, 2025
★★★★★ 5
Love the Options
Size: 10 Slim, Color: Medium Wash
I love that there are slim and plus sizes. Allows me to find the perfect fit for my girls!!
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Amazing jeans! My daughter loves them!
Size: 7 Slim, Color: Washed Blue, Size: 7 Slim, Color: Washed Blue
My daughter is really slim but tall. She is 7 about 50 pounds. She loves them and I’m so happy because all the other jeans that I buy I have to return cuz they are all too big on her. The jeans are stretchy and feel much more expensive for the price! Great quality! I will be ordering more for sure!
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Reviewed in the United States on April 14, 2026