55 Road Disc SL
This is it.
The fastest, lightest, most advanced road wheel we've ever built. Just 1329 grams!
The 55 Road Disc SL sits at the very top of the Podium Series—engineered without compromise for riders who demand absolute performance. Every gram, every layer, every detail has been optimized to deliver a wheelset that is brutally fast, incredibly responsive, and built to win.
A New Benchmark in Performance
With a 55mm depth, the 55 SL is built to maximize aerodynamic efficiency—delivering free speed on fast roads, rolling terrain, and race-day efforts.
Yet despite its deep profile, the wheel remains composed and predictable, giving you confidence when conditions get challenging.
Boyd has made me completely rethink about what a deep aero wheel can do. No longer do I need to choose between my lightweight set and my aero set.
No Shortcuts Taken
At the core of the 55 SL is a next-generation rim built with T1000 aerospace-grade carbon fiber—a material reserved for the most demanding applications.
The result?
- Massive 140J impact strength—overbuilt for real-world riding conditions
- Ultra-light 400g rim weight
- A ride quality that feels both precise and unshakably solid
This is strength without penalty. Speed without sacrifice. Manufacturing without compromise.
Engineered for Balance and Precision
A subtle but powerful advantage: a 2.5mm rim offset.
This design equalizes spoke tension between drive and non-drive sides, creating a wheel that is:
- Stronger under load
- More laterally stiff
- More responsive when accelerating
It’s the kind of engineering detail you feel every time you stand on the pedals.
Why Choose the 55 Road Disc SL
- Podium Series — Boyd’s highest-performance offering
- T1000 carbon construction with 140J impact resistance
- 55mm deep aero profile
- 24mm internal width, hooked rim
- 2.5mm offset for improved spoke balance and stiffness
- 400g rim weight / 1329g wheelset
- Grade 54 hubs with Enduro ABEC 5 bearings
- Pillar Wing 20 spokes
- Lifetime warranty
- $2,100 MSRP
Race-Ready. Lifetime Backed.
The 55 Road Disc SL is built to perform at the highest level—and backed accordingly.
- Lifetime warranty
- Hand-built precision
- Ready to handle everything from race day to demanding training miles
Modern Width. Maximum Control.
The 55 SL features a wide 24mm internal rim width, optimized for today’s performance tires.
- Better tire shape for lower rolling resistance
- Increased air volume for comfort and control
- A hooked rim design for maximum tire security and confidence at higher pressures
This is modern road performance, fully realized.
Unmatched Weight for Its Class
At just 1329 grams for the wheelset, the 55 SL is over 200 grams lighter than comparable premium 55mm carbon wheels.
That means:
- Faster accelerations
- Easier climbing
- Less fatigue over long distances
Deep-section aero performance—without the typical weight penalty.
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.
Grade 54 hubs
Featured in the Podium level wheels is the Grade 54 hubs featuring a straight pull flange, high strength steel ratchet with 54 teeth giving 6.6 degrees of engagement, and the low weight to help you fly up the steepest of hills.
Key features of the Grade 54 hubs include
- 54t ratchet hub wheelset
- 6.6 degree engagement hubs
- Enduro ABEC 5 LLU/LLB bearings
- Centerlock disc brake rotor mounting
- Quick swap freehub wheelset
- Tool-free service and parts swapping
- 7075-T6 aluminum alloy axles
- Multiple drivers available
- Forged and CNC’d 6061-T6 heat-treated aluminum hub shell