• 29er Asymmetric Carbon MTB Rim | 30mm Height, 30mm Inner Width | Freeride & Enduro Bola
  • 29er Asymmetric Carbon MTB Rim | 30mm Height, 30mm Inner Width | Freeride & Enduro Bola
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BOLA 29er Carbon Enduro MTB Rim | 36mm Wide, 30mm Internal

BOLA 29er Carbon Enduro MTB Rim | 36mm Wide, 30mm Internal

$310.00 USD
$350.00 USD $310.00 USD
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Spoke QTY
Weight Tier
Decal

The Bola 29er hookless carbon enduro rim — a 30mm internal, 30mm-high Toray T700 hoop (385-455g) built for enduro and all-mountain.

Purpose-built for enduro and all-mountain, this 29er Bola hookless rim pairs a 30mm inner with Toray T700 carbon so you can run modern 2.3"-2.6" tires at lower pressures without squirm.

Buying Guide.

Weight tier - Superlight ~385g: the Light-grade choice for riders under ~100kg - fast on climbs, with enough margin for enduro when the lighter build still holds.

Weight tier - Standard ~455g: the Midweight mass-tolerance build - choose it when enduro abuse and rider weight mean durability wins over grams.

Tire & terrain: the straight channel runs 2.3-2.6" at low enduro pressure for a clean hookless seal - built for enduro and all-mountain, not XC lightness.

Same-family: this straight-bead hookless 30mm is the enduro counterpart to the asymmetric 30mm rim (~$310) - choose the asymmetric for spoke-tension symmetry, this one for a clean U-shaped tubeless bed.

Rated to a 110kg system weight.

Target Audience & Usage Notes.

Enduro and all-mountain riders who want a stiff, light, tubeless platform.

Disc only; the superlight layup is best for riders under 100kg.

Max system weight 110kg.

The Ride That Awaits.

Settle onto the trail and feel the supportive sidewalls give you the courage to commit - this rim absorbs chatter rather than deflecting, keeping the rear wheel glued to the line you choose. The clean U-shaped hookless bead seals tubeless on the first try, every run. Build it your way with custom spoke holes, and a 3-year rim warranty rides shotgun.

Specifications
Size: 29er
Material: Genius Toray carbon fiber
Rim Depth: 30mm
Bead Type: Hookless
Inner Width: 30mm
Outer Width: 36mm
ERD (Effective Rim Diameter): 579
Weight Tier: 455/385
Trade-offs & Considerations
Aero vs Crosswind: The 30mm enduro profile is aero-neutral at trail speeds; the lay-up and 36mm external width are tuned for impact survival and tyre support, not for low-drag aerodynamics.
Weight vs Stiffness: The enduro-oriented Standard lay-up prioritises impact durability over grams, while the Superlight option (about 385g) saves roughly 70g per rim but carries a lower rider-weight limit (about 100kg); choose by terrain, not by grams alone.
Tire-Type Trade-off: The hookless bead is tubeless-only for 2.3-2.6in enduro tyres; running 20-30 PSI tubeless improves grip and comfort but requires hookless-rated tyres, tape and sealant.
Sourcing & Delivery Trade-off: Stock drilling ships in 1-3 business days at $310; OEM spoke-hole counts (28/32) and custom branding add 7-15 business days, and custom orders carry the 3-year warranty.
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: >100 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: 110kgs
Recommended Use Cases
Climbing / Hill Repeats: Good - The lightweight construction (385g option) aids climbing efficiency.
Gran Fondo / Endurance: Suitable - The rim is designed for aggressive trail riding rather than long-distance road, but it can handle endurance rides with proper tires.
Road Racing: Not recommended - This is a mountain bike rim designed for off-road use, not for road racing.
Sprinting / Criterium: Not recommended - The wide 30mm internal width is optimized for traction and lower pressures, not for aerodynamic sprinting on pavement.
Training / Daily Riding: Suitable - The rim is durable enough for regular trail riding, but not ideal for paved road training.
Not Recommended For: Road racing, criterium racing, and primarily paved road riding because it is designed for enduro and all-mountain off-road use.
Compatibility
Frame Compatibility: 29-inch enduro/all-mountain frames (100x15mm or 110x15mm front, 142x12mm or 148x12mm rear axle depending on hub)
Tire Type: Tubeless-ready, hookless compatible with leading tire brands
Tire Width Range: 2.3"–2.6" (optimal)
Brake Standard: Disc brake only (no rim brake track)
Drivetrain: Any drivetrain (compatible with all cassette types)
Rotor Standard: N/A (rim only; rotor mounts to hub)
How It Compares
ModelWeightDepthWidthPrice
29er 30mm Rim 36mm 455/385 30mm 30mm See store
Model A ~455g 25mm 30mm $389
Model B ~460g 25mm 30mm $249
Model C ~440g 25mm 30mm $289
FAQ
Which tyres fit on the 30mm inner rim, and what pressure suits me?
The 30mm inner width suits 2.3"–2.6" enduro tyres; as it is hookless, use only ETRTO hookless-rated tubeless tyres and run them around 20–30 PSI for enduro.
How do I work out the right spoke length for this rim?
Contact Bola for the exact ERD before ordering spokes. Once we confirm the figure, plug it into a known calculator (Sapim / DT) and add the recommended correction.
What is the maximum spoke tension I can run on 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.
Will the rim crack on rock gardens or bottom-outs at low pressure?
The bead area uses a thickened impact-reinforced layer; impact testing passes >60J extreme impacts (above the ISO 30J standard). Inner widths of 30mm accept wider tyres, which deform to absorb shock at low pressure.
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
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
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