Bola 700C 90/95mm Wave Carbon Rim 28mm | TT & Triathlon
Bola 700C 90/95mm Wave Carbon Rim 28mm | TT & Triathlon
Regular price
$350.00 USD
Regular price
$400.00 USD
Sale price
$350.00 USD
Shipping calculated at checkout.
Quantity
Couldn't load pickup availability
Size: 700C
The Bola 700C 90/95mm wave carbon rim - a deep 90/95mm wavy TT/triathlon rim, 28mm outer / 21mm internal, ~615g, hooked tubeless, for rear-wheel aero builds.
When the wind is the only opponent and the course runs straight, the wavy 90/95mm rim answers with calm defiance of drag.
Buying Guide.
Use case: a rear-wheel specialist for flat TT and triathlon, where deep-section aero matters more than light weight.
Course judgement: the wavy shape tames crosswinds better than a flat 90mm rim, but it is still a flat-course tool, not a climbing or road-race rim.
Tyre choice: run 25-32mm race rubber on the narrow internal bed for high-pressure, low-drag rolling.
Same-depth series: the 180mm aero rim ($450) goes deeper for maximum flat speed; the 120mm aero rim ($420) is shallower and calmer.
Adjacent depth: the 88mm hooked tubeless rim ($350) is the classic deep spoked option at a similar price.
Use as a rear wheel; respect the system weight limit.
Target Audience & Usage Notes.
TT/triathlon rear-wheel builds and wheel builders.
Rear-only on flat courses; disc-brake frames (verify). 25-32mm tubeless/clincher tyres, 100-125 PSI. 125kg rider limit.
Not for climbs, road races or crosswind-heavy courses.
The Ride That Awaits.
Built as a rear wheel, it holds an effortless, momentum-longing line; the wavy rim cuts a calm, purposeful shape through the fastest road you can find.
You sit low and stay gone.
Free shipping and a 3-year rim warranty support your aero build.
Specifications
Size: 700c
Material: Genius Toray carbon fiber
Rim Depth: 90/95mm wave
Bead Type: Hooked
Inner Width: 21mm
Outer Width: 28mm
ERD (Effective Rim Diameter): 458/448
Weight Tier: Standard
Trade-offs & Considerations
Aero vs Crosswind: The 90/95mm wave profile saves about 10.0W versus a 50mm rim at 40km/h on straight courses; the wave shape moderates crosswind drag versus a solid 90mm wall at 10° yaw, but it still needs committed steering in gusts.
Weight vs Stiffness: At about 615g the Standard layup is the only tier; the tall wave section is laterally stiff, and the mass sits in the deep walls where it adds aero inertia but little climbing penalty on flat TT courses.
Tire-Type Trade-off: The 21mm internal bed is tuned for 25–32c clincher or tubeless tyres at 100–125 psi; the hooked bead supports high pressure, and tubeless needs tape, valve and sealant to seal the bed.
Sourcing & Delivery Trade-off: Stock drilling ships in 1–3 business days at $350; custom spoke-hole count or decals add 7–15 business days and roughly a $40–80 premium.
Performance Test Data
Fatigue Test: 750,000 cycles @640N (ISO 4210-7 Annex A, informative only)
Impact Resistance: >60J (Higher than ISO 4210-7)
Flatness: <0.25mm (internal QC)
Roundness: <0.3mm (internal QC)
Max Spoke Tension: >350 kgf (internal QC, spoke breaking tension)
Ultimate Strength: >300 kgf (internal QC, static spoke-hole point load)
Dynamic Equilibrium: <3g (internal QC)
Radial Stiffness: 90–110 N/mm (internal lab)
Lateral Stiffness: ≥8N/mm
Max System Weight: 125
Recommended Use Cases
Time Trial / Triathlon Build: The 90/95mm wave profile saves about 10.0W versus a 50mm rim at 40 km/h on straight courses, the deepest aero in the Bola rim line.
Windy-Course TT Build: The wave outer width breaks lateral vortices at 10-15 degree yaw, cutting steering torque about 25% versus a straight-profile 90mm wall.
Deep-Section Lace-Up: At about 615g Standard the 21mm bed runs 25-32c clincher or tubeless at 100-125 PSI; ERD 458/448 suits a custom aero lace.
Track / Straight-Line Aero: Mass sits in the deep walls where it adds aero inertia but little climb penalty on flat, wind-sheltered TT circuits.
Not Recommended For: Climbing or open-road gran fondo - gusts need committed steering and ~615g per rim is a lot to carry uphill.
Compatibility
Frame Compatibility: 700C (ISO 622) - fits most road, TT, and triathlon frames with appropriate clearance
Tire Type: Tubeless ready (hooked bead) and clincher
Tire Width Range: 25-32mm (optimal 28mm)
Brake Standard: Disc brake (centerlock or 6-bolt)
Drivetrain: Compatible with Shimano, SRAM, and Campagnolo via correct freehub body
Rotor Standard: Disc brake rotor (centerlock or 6-bolt)
How It Compares
| Model | Weight | Depth | Width | Price |
|---|---|---|---|---|
| 700C 90/95mm Rim 28mm | Standard | 90/95mm | 28mm | See store |
| ICAN AERO 50 II Disc | 1254g | 50mm | 23mm internal | $770 |
| Mavic Cosmic Ultimate 45 | 1255g | 45mm | 19mm | $5,989 |
| Fulcrum Speed 57 DB | 1480g | 57mm | 23mm（内宽；外宽29.3mm） | €2,265 |
FAQ
Which tyres suit the 21mm internal width?
The 21mm internal width suits 28c tyres on this deep triathlon wave rim, keeping the casing shaped for aerodynamics rather than a wide rolling bed.
What spoke drillings are available, and which brake type is this rim rated for?
Spoke drillings and brake rating depend on the build option, selectable at checkout. If you plan to lace your own wheel, confirm the drilling and brake type with Bola before ordering so the rim matches your hub and frame.
What is the maximum spoke tension for this rim?
Drive-side / disc-side max tension is 130–140 kgf, with the non-drive side adapted to match; spoke holes are locally reinforced inside the carbon layup to prevent pull-out cracking.
How does a deep wave rim handle crosswinds — does the wave profile really help?
The wave-profile outer width breaks lateral air vortices at 10°–15° yaw, cutting steering torque by about 25% versus a straight-profile rim of the same depth. High-speed descents stay planted.
Will I really pay no customs or VAT for delivery to the US and EU?
Yes. The Economy channel ships DDP — duties and VAT are fully prepaid by us, cleared in advance, delivered to your door with no extra payment to customs or the courier.
Warranty & Shipping
Warranty Period: 3 years
Crash Replacement: 30% discount on replacement parts within 1 year of the original purchase date
Processing Time: In stock: 1–3 business days · Out of stock or custom order: 7–15 business days
Shipping method: FedEx/UPS/DPD/EMS Economy (free with duties & VAT included in USA & EU) · Expedited option available
Estimated Delivery: Economy 7–20 business days · Expedited 3–7 business days, customs clearance excluded
