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Cannondale Cannondale HollowGram R-S 50 100X12mm Front Wheel

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Aero for All
Bring HollowGram performance and serious value to any road bike. Rise to Speed, for less, with our ready-for-anything R-45 wheelset.

Developed with D.R.A.F.T. our 45mm deep, 21mm internal/32mm external width rims are aerodynamic and lightweight
Grand Forza double-butted spokes keep it light while staying strong and reliable
Ready for tubeless setup right out-of-the-box
At 1740g a pair the R 45 is performance-packed and ready for any road ride
A limited lifetime warranty to give you peace of mind
100x12 thru-axle compatible

Aerodynamic Overachiever
The R-45 rim profile packs the same DRAFT-optimized aerodynamic advantage of all other HollowGram road wheels. Its precision-crafted shape means higher speeds with less effort, making you faster everywhere.

The D.R.A.F.T. Approach
It’s one thing to cut through the wind. It’s another thing to master it. D.R.A.F.T. stands for Drag-Reducing Aerodynamic Flow Technology, an approach pioneered over the course of thousands of testing hours by our in-house aerodynamicists and applied to all HollowGram road wheels. We leverage data and testing focused on real-world riding conditions – like headwinds, crosswinds, and variable winds that shift as you ride – not just those that are simulated in a wind tunnel. The result is rim properties that work with the wind, not against it, and wheels that help you go faster, not just look faster. D.R.A.F.T. creates wheels that help you Rise to Speed, no matter the day.


Size(s) 700c
Rim Material Carbon

* Subject to change without notice.