39a Aluminum Extensions (400mm)
SKU: 77473707787

39a Aluminum Extensions (400mm)

Sale price$59.39 Regular price$65.99
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Description

39a Aluminum Extensions (400mm)The new range of extensions have evolved from our well proven T Series. They have been designed to offer distinct fit options. We have also adopted a new naming system whereby the name gives the angle and material of the extension. Thus 39a is a 39 bend in aluminum. 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

The new range of extensions have evolved from our well proven T-Series.  They have been designed to offer distinct fit options.  We have also adopted a new naming system whereby the name gives the angle and material of the extension.  Thus 39a is a 39° bend in aluminum. 

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.

FEATURES:

  • The 39a extensions have a 39° for the grip . The rider can choose whether to hold high for the shrugged position or low for a more open, head up position.
  • The 39a offer a 7.5mm lateral shift per side.  This allows the rider to get their hands narrower or wider without tilting the extensions so much that the shifters touch.
  • Of course we didn't forget the importance of aerodynamics - adding a Kamm shaping to the rise section.
  • Lastly we added ergonomic shaped end caps making the hand grip more comfortable.
  • 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.
  • All the 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.

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)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 77473707787

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★★★★★ 5
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Reviewed in the United States on May 29, 2026
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So, STA-BIL Start Your Engines! is basically that friend who shows up uninvited but actually saves the day. You know, the one who doesn’t ask questions and just gets your engine running when it’s feeling moody or sluggish. Does it work? Of course it does. Like, “put a little in your gas tank, say a quick prayer, and voila!” kind of work. Suddenly your car remembers how to start, and you feel like a mechanic genius without actually lifting a wrench. It’s simple, it’s reliable, and it doesn’t judge you for letting your gas sit around until it gets that “I don’t want to cooperate” attitude. Pros: Makes your engine start like it just had an espresso shot. Easy to use — even if you’re barely awake in the morning. No weird smells or smoke signals, just clean, smooth starting. Cons: Won’t fix your “I forgot to put gas in” problem. Sadly, can’t make your car drive itself to work (yet). You might start relying on it a little too much — hey, no judgment. Final Verdict: ⭐️⭐️⭐️⭐️⭐️ – 5 stars. If your engine is feeling lazy, this stuff just works. It’s like a pep talk in a bottle for your car. Highly recommended for anyone who’s ever cursed their ignition.
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Reviewed in the United States on October 17, 2025
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Nobody
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★★★★★ 5
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EXCELLENT
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Reviewed in the United States on January 27, 2026
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Grantham, US
★★★★★ 4
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Ray
Birmingham, US
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