AeroAddicts

Extensions

Profile Design 52 ASC Carbon

Aero-shaped carbon extensions that follow the 43 ASC with a steeper 52-degree grip angle, for a more hands-up position with support under the wrist. The extension body sweeps out to tuck behind the forearm, and the grip is 20 mm longer than the 43 ASC to leave room for SRAM Blips (it can be trimmed). They fit any aerobar with standard 22.2 mm extension clamps.

Fitted to 9 builds across 4 bikes in the database.

Specs

Shape
Aero-shaped carbon (ASC), 52° grip angle, 127/137 mm rise, 22.2 mm clamp diameter
Lengths available
340 mm, 400 mm
Material
Carbon
Weight
190 g6.7 oz
Notes
Weight per pair, 340 mm (400 mm: 228 g). Minimum cut length 230 mm (340) / 290 mm (400) from clamp front.
Released
2024

Bikes that come with it

BikeBuildPrice (MSRP)Notes
Canyon Speedmax CF2026Speedmax CF 8 Di2 Race€5,999€5,999£5,599—
Wilier Triestina Supersonica SLR2026Supersonica SLR Dura-Ace Di2 Triathlon (Kleos 67/85)€18,000€18,000€18,000—
Ventum Tempus2025Tempus Frameset$4,999$4,999$4,999ASC Pro extensions (325, 350 or 375 mm) are a $600 upgrade.
Ventum Tempus2025Tempus SRAM Force AXS$8,599$8,599$8,599ASC Pro extensions (325, 350 or 375 mm) are a $600 upgrade.
Ventum Tempus2025Tempus Shimano Dura-Ace Di2$11,499$11,499$11,499ASC Pro extensions (325, 350 or 375 mm) are a $600 upgrade.
Ventum Tempus2025Tempus SRAM RED AXS$11,499$11,499$11,499ASC Pro extensions (325, 350 or 375 mm) are a $600 upgrade.
Quintana Roo V-PR2022V-PR Shimano Ultegra Di2——
Quintana Roo V-PR2022V-PR Shimano Dura-Ace Di2——
Quintana Roo V-PR2022V-PR SRAM Force AXS E1——

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