Profile Design 43 ASC Carbon Aerobar Extensions - Carbon 340mm Black. The 43 ASC Aerobar Extensions are intended to optimize the aerodynamics of your existing bars but pairs exceptionally well with either the Race+ or Ergo+ armrest. Giving you the ideal supportive position which again will help you be relaxed while riding and the key to speed is relaxation. The fit by the wrist area is designed to smooth airflow over the arm and to increase contact area which will provide some extra comfort and to give you more control over your bike. The design utilize carbon fibers natural ability to be shaped into an aerodynamic form while still providing a good amount of strength and rigidity hence ASC stands for Aero Shaped Carbon.
43 degree grip angle provides a neutral wrist position which helps the rider to be in a more relaxed position
Optimized shape to minimize drag without sacrificing strength
Extensions will fit in any aerobar that is designed for 22.2mm
Carbon fiber construction compatible with electronic or mechanical shifters
TECH SPECS
Material CarbonColor Black
QUALITY SERVICE
Just real riders who strive to provide the best customer service.
FREE SHIPPING
Most orders over $75 ship free anywhere within the lower 48 United States
RETURNS
Not happy with your order, just send it back to us for a refund or exchange.
Our Race Team Sponsors
Also Supported By
Our Race Team Sponsors
Also Supported By
Race Team
Racing is a huge part of the culture at Lenny’s Bike Shop, and the Lenny’s Race Team represents the shop on trails and racecourses throughout the region. Made up of passionate riders who love pushing their limits, the team competes in gravity and mountain bike events while proudly representing the Lenny’s community.
Why Shop with Lenny's?
At Lenny’s Bike Shop, cycling isn’t just a business — it’s a passion. As a locally owned, full-service bike shop, Lenny’s is dedicated to helping riders of every level enjoy the sport with the right bikes, gear, and expert support.
From high-quality bicycles and components to trusted service and advice, the team focuses on delivering products and support that help you ride more and ride better.
Whether you’re upgrading your bike, tuning up your ride, or just getting started, you’ll find knowledgeable staff, great brands, and a commitment to keeping the cycling community rolling.