Boyd Cycling 55 Road Disc SL
Built for riders who want race-day speed without a weight penalty.
24mm
INTERNAL
1329
GRAMS
28+
TIRES
Is this wheel right for you?
BEST FOR
Road racers and time trialists who want the biggest aero advantage in the Podium line
Sprinters who want a deep-section wheel that's stiff and fast to accelerate, not just fast at speed
Flat-to-rolling road races and criteriums
Triathletes who want one wheelset that pulls double duty on road and tri bikes
Riders upgrading from a shallower alloy or entry-level carbon wheel who want a real, feelable speed gain
NOT IDEAL FOR
Dedicated climbers who want the lowest weight above everything else.
See the 36 Road Disc SL
Riders in consistently high-crosswind regions who want the most forgiving, neutral-handling wheel
Pure gravel or mixed-surface riding. See Jocassee or Pinnacle Race
What riders are saying.
“After a month of 1800–2000 watt sprints, these feel stiffer than my 55mm wheels. Zero hesitation.”
How we got to 1329g without losing the aero advantage.
1 - Performance Targets First
Aero efficiency, stiffness, and impact resistance locked in before any gram-chasing begins.
2 - Rim Architecture
A 55mm profile shaped for real aero gain without sacrificing crosswind stability. A 2.5mm rim offset equalizes spoke tension front to rear for a stronger, straighter wheel.
3 - Carbon layup strategy
T1000 aerospace-grade carbon, placed where aero loads and impact forces actually live. Not applied uniformly just to hit a weight number.
4 - Dimensional control + QC
Bead seat, ERD, and critical interfaces inspected so every build starts true.5 - Spoke & Tension Plan
Pillar Wing 20 spokes chosen for long-term stability and lateral stiffness at speed, not just the lightest spec sheet.
6 - Handbuilt, Stress-Relieved
Multiple tension cycles, stress relief, final balance checks. Stays true when you're out of the saddle.7 - Validation Testing
140J impact resistance, fatigue, and tire pressure testing. Plus real riding at race pace on real roads.8 - Final Inspection
Runout, dish, tension balance, hub function, tubeless check. Then it ships.
Every part earns its place.
Carbon Rims
Every cut and ply of carbon plays a story in how a rim responds. Aerospace grade carbon is used in strategic places for increased strength with bringing the rim weight down to just 400 grams
Grade 54 Hubs
The new Grade 54 hubs are the most advanced hubs we've ever created. Weighing just 270 grams for the set, the hubs feature a ratchet drive system with 54 teeth and just 6.6 degrees of engagement
Enduro Bearings
The Enduro ABEC 5 bearings provide exceptional precision and durability, ensuring that the hub operates smoothly under the most demanding conditions.
Handbuilt
Every wheel goes through 5 different work centers, before being QCed for true, run out, and spoke tension. This ensures every wheel will keep running as true as the day you received them.