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.
Highlights
- 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
- SRAM XDR freehub body compatible
Aero for All
You’ll find advantages in every area of performance with the R-45 wheels: high-speed stability, sharp handling, low weight, and tough construction are all upgrades to any bike and any ride.
High-performance tire technology has evolved, and HollowGram is here for it. Tubeless compatibility, 21mm internal widths, and hooked sidewalls are part of every package. It’s all optimized around modern road tires, for that ideal blend of ride quality, aerodynamic efficiency, and low weight.
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.
Make it a set
