HED GT3 Carbon Road Tubular Rear Wheel~SHI-H3RGT3 / HED GT3 ROAD TUBULAR REAR WHEEL~SHI

The external width has been significantly increased to 26.5mm (from 19mm on the old model). This allows 21-23mm tires to be installed more smoothly with the rim, complying with the "105% aerodynamic rule," reducing drag and improving crosswind stability.
The rim depth has been reduced from 54mm on the old model to 46.5mm. Although shallower, combined with the increased width, its aerodynamic performance is actually stronger and it is easier to handle in strong crosswinds.
The braking track has been redesigned to provide a more stable braking feel and shorter braking distances.
Unlike the old model which required special adapters (such as an L-shaped pump head), the GT3's valve hole is in a standard position, allowing for easy inflation with a regular valve extender.
Equipped with a Shimano/SRAM compatible freehub, supporting 9/10/11 speed cassettes.