SKU: 11787588702

39AH Aluminum Extensions

Sale price$67.49 Regular price$74.99
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Description

39AH Aluminum ExtensionsThe 39AH is intended to be paired with our pad wadges to convert non tilting aerobars to have a 10 or 15 of tilt. The name means 39, aluminium high rise. The extension angle starts at 54 and when adding a 15 pad wedge, balances the angle out to 39 (54 15=39). Likewise when paring with a 10 wedge you get a total of 44 (54 10=44). The grip is long enough that it can be shortened for use with the 10 wedge. The sole purpose of extensions is to provide a

The 39AH is intended to be paired with our pad wadges to convert non-tilting aerobars to have a 10° or 15° of tilt.  The name means 39°, aluminium high rise.

The extension angle starts at 54° and when adding a 15° pad wedge, balances the angle out to 39° (54°-15°=39°).  Likewise when paring with a 10° wedge you get a total of 44° (54-10°=44°).

The grip is long enough that it can be shortened for use with the 10° wedge.

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:

  • Extension Shape: Aero shape like the other A-Series extensions it offers aero shaping in the rise section and a lateral offset for the grip.
  • The 39AH is a 54° bend and when paired with a 15° wedge brings it to 39°.
  • Use the 39AH with one of our pad wedge options and an Ergo+ or Race+ armrest to add tilt and comfort to a non-Profile Design aerobar.
  • * Note that the pad wedges are not compatible with Profile Design Brackets so the 39AH is not recommended for the use with Profile Design bars.
  • 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:

  • Extension Length: 365mm
  • Extension Angle: 39 Degrees
  • Extension Rise: 186mm (bottom to top)
  • Outer Diameter: 22.2mm
  • Offset: 15mm total
  • Includes: Sold as a Pair (1 Right and 1 Left Extension)
  • Construction: 6061-T6 aluminum, pre-drilled for bar-end shifter cable routing
  • Colors: Anodized Matte Black
  • Weight: 227g/pair
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: 11787588702

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Size: Medium, Color: Black
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I love these socks. Very soft and comfortable.
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Reviewed in the United States on February 21, 2026
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Sallie Miller
Natrona Heights, US
★★★★★ 5
Good socks
Size: Medium, Color: Black
Socks wear reasonably well. They are comfortable.
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Reviewed in the United States on February 4, 2026
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Joey
Omaha, US
★★★★★ 5
Very comfy
Size: X-Large, Color: White
I'm a size US Mens 14 with huge calves. Finding comfortable crew socks can be somewhat difficult. These are extremely comfortable, very stretchy and soft. Very worth the price.
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Reviewed in the United States on November 4, 2025
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SG
Grantham, US
★★★★★ 5
I use these exclusively for when I'm hiking, cycling and walking ( exercising )
Size: X-Large, Color: Black
5.7.2019 Update: I have probably five packs of 3 of these socks. Can't explain it but recent pairs I've been using have lasted longer than previous two packs ( 6 socks )... So I'm going to get some more... They are my #1 go to sock for cycling, hiking, climbing, walking ( serious, training, speed, distance )... 10.30.19: I use these exclusively for when I'm hiking, cycling anqd walking ( exeqrcising )... They are light, comfortable, keep feet dry, cool & comfortable... They don't shift around on feet. They stay put once put on and running, climbing or cycling shoes are put on and laced up or ratched... I do a lot of hill climbing and also use on terrain where there's lots of long periods ( hours ) going up & hours going down... They don't appear to be very durable, get holes in toe or holes in heels, but 3 pack is relatively inexpensive so I continue to buy them. I do not use them for everyday casual wear because they would wear out very quickly compared to other similar sockets...
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Reviewed in the United States on October 30, 2018

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