Cannondale Hollowgram R-SL 64 Clincher Tubeless Ready Carbon Wheelset

Highlights

• Developed with D.R.A.F.T. our 64mm deep, 21mm internal/32mm external width carbon rims are incredibly aerodynamic and tubeless compatible
• We optimized DT Swiss Aerolite spokes with a 2:1 lacing pattern, giving an highly balanced aerodynamic wheel
• HollowGram hubs feature a small cross-section and sealed cartridge bearings keeping it light and aerodynamic
• At 1630g a pair the R-SL 64 is impressively stable, in a lightweight package
• A limited lifetime warranty to give you peace of mind
• 100x12 thru-axle compatible (front wheel)

• Aero Hero - All Cannondale HollowGram road bike wheels punch above their weight class in aerodynamic performance, but the Cannondale  R-SL 64 wheelset punches the hardest. Its incredibly low drag coefficient rivals that of deeper wheels, slicing the wind and carrying speed better than the competition.
• Light Speed - Rising to speed isn't just about blistering pace. It's about responsiveness and agility, too. The Cannondale R-64 rim is specifically engineered to balance aerodynamics with low weight and sharp handling, helping you carve up the corners as well as the flats.

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 Cannondale's in-house aerodynamicists and applied to all Cannondale HollowGram road wheels. Cannondale leverages 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.

Specifications

Front Wheel

• Platform - R-SL 64
• Model Name - R-SL 64 100x12mm Front Wheel
• Model Code - HP8122U

Wheel

• Front Hub - HollowGram Aero, sealed bearing, 12x100mm, centerlock, 20h, straight pull
• Rim Depth - 64mm
• Rim Outer Width - 32mm
• Rim Inner Width - 21mm
• Rim Type - Carbon clincher, hooked, tubeless ready
• Nipple Type - Sapim Up side down, alloy
• Effective Rim Diameter - 511mm
• Maximum Spoke Tension - 100-130 kgf
• Max Tire Pressure - See Owner's Manual
• Brake Type - Disc
• Rider Weight Limit - 100kg/220lbs
• Spoke Count - 20h
• Spoke Length (NDS-DS) - 271mm / 271mm
• Spoke Type - Sapim CX-Ray - 2-cross

• Wheel Size - 700c

Extra

• Extra 1 - Tubeless tape, tubeless valves

Rear Wheels

Shimano Compatible