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Product Description

The H3 has propelled more Grand Tour riders to the podium than any other wheel.  Year after year, it is independently chosen by the top riders in the world – when every second counts.  The GT3 is the next evolution of that iconic wheel.

Why change?  It’s not that the H3 got slower – it’s that the riders began choosing wider tires.  Gone are the days of 18 and 19mm tires for time trials; riders now embrace the comfort and rolling speed advantages of wider rubber.  The GT3 features a super-wide 26.5mm rim, optimized for use with modern 21 and 23mm tires. 

The GT3 is a fantastic wheel for time trials and triathlons.  Its solid construction makes it a top choice for athletes with busy travel schedules (and exposure to airline baggage handlers).  There are no spokes to break, and the wheel can handle a lot of abuse.  It’s time for a new era of fast.


Tech Notes:

1. For all types of bicycle wheels, a hard strike on the rim is likely to result in rim damage. At the point of impact, an aluminum rim will dent, and a carbon rim may delaminate - both are unsafe conditions that require rim replacement. 


Other Details

Rim Type:
Rim Depth:
Rim Width:
Internal Rim Width:
Braking Surface:
Recommended Brake Pad:
Carbon-specific Pad
Front Hub:
Hed Sonic H3
Rear Hub:
Hed Sonic H3
Hub Compatibility:
Shimano/SRAM/Campy 9, 10, 11-speed
Spoke Type:
Structural Composite
Powertap G3 Option:
Track Option:
Disc Brake Option:
Recommended Tire Size:
Wheel Size:
Titanium Skewers, Valve Extenders

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