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

Q: How do I set up this tubeless rim?

The rim features a hookless bead design with a U-shaped profile for improved tubeless sealing. Use a tubeless-compatible tire and sealant. Install the tire, inflate to seat the bead, then add sealant through the valve. Recommended tire pressure range is lower due to wide inner width, typically 20-30 psi for enduro riding. Ensure the rim tape is properly installed if not using factory-taped rims.

Q: What tire sizes are compatible?

The rim is optimized for 2.3" to 2.6" tires. This wide range supports modern tire profiles, providing excellent cornering traction and sidewall support. For best performance, choose tires within this range. The 30mm inner width allows lower pressures without excessive squirm, improving comfort and control on rough terrain.

Q: How much weight can I save compared with an alloy rim?

Depending on the alloy rim, you can save 35–120g per rim. The superlight 385g carbon option is significantly lighter than most alloy rims, which typically weigh 450-550g. This weight reduction improves acceleration and climbing responsiveness, but keep in mind the weight limit of 100kg for the superlight version.

Q: Can I customize the spoke holes and finish?

Yes, we offer multiple finish and spoke-hole options for OEM and custom branding. Whether you need specific spoke counts (e.g., 28/32) or a custom paint job, we can accommodate. Small-to-medium brands can work with us for tailored builds. All custom orders come with a 3-year warranty.

Q: What maintenance and inspection is required?

Regularly inspect the rim for cracks, delamination, or impact damage, especially after heavy hits. Check spoke tension periodically and ensure it stays within the recommended range of >300kg. Clean the rim with mild soap and water, avoid harsh chemicals. Replace the rim if any structural damage is found. The hookless bead area should be checked for wear or deformation to maintain a proper tubeless seal.

$310.00 USD

~~$350.00 USD~~ $310.00 USD

Sale Sold out

Free shipping | VAT included in EU & USA

Spoke QTY 28/28 32/32 Customs

Weight Tier ST SL

Decal Bola White Bola Black Customs

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.

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Material: Toray UD carbon
Rim depth: 30mm
External width: 36mm
Internal width: 30mm
Size: 29in
Profile: Hookless
Weight Tier:
Max Tire Pressure: 75

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Weight vs Durability: The superlight 385g rim saves ~70g vs the standard 455g option, but the lighter version is only recommended for riders under 100kg, while the heavier version supports heavier loads and more aggressive riding.
Tire Volume vs Rolling Resistance: The 30mm inner width optimizes tire shape for 2.3–2.6" tires, increasing volume and traction at lower pressures, but may increase rolling resistance compared with narrower rims.
Stiffness vs Compliance: High modulus Toray T700 carbon gives high stiffness for responsive handling, but the rim may transmit more vibration on rough terrain compared with alloy rims that flex slightly.
Cost vs Performance: Carbon rims typically cost more than alloy equivalents but save 35–120g per rim and offer better impact resistance, making them a performance upgrade for serious riders.

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Fatigue Test: 750,000 cycles @640N (ISO 4210-7 Annex A, informative only)
Impact Resistance: >40J (ISO 4210-7 reference)
Flatness: <0.25mm (internal QC)
Roundness: <0.3mm (internal QC)
Max Spoke Tension: >300kg (internal QC)
Ultimate Strength: >100kg (internal QC)
Dynamic Equilibrium: <3g (internal QC)
Radial Stiffness: 90–110 N/mm (internal lab)
Lateral Stiffness: ≥8N/mm
Max System Weight: 110kgs

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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.

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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)

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29er Carbon MTB Rim	_	_	_	385g/455g	30mm	30mm	see store
Sprint	_	_	_	400g	30mm	30mm	~$220
XCR	_	_	_	420g	30mm	30mm	~$180
Drive	_	_	_	410g	30mm	30mm	~$200

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How do I set up this tubeless rim?

The rim features a hookless bead design with a U-shaped profile for improved tubeless sealing. Use a tubeless-compatible tire and sealant. Install the tire, inflate to seat the bead, then add sealant through the valve. Recommended tire pressure range is lower due to wide inner width, typically 20-30 psi for enduro riding. Ensure the rim tape is properly installed if not using factory-taped rims.

What tire sizes are compatible?

The rim is optimized for 2.3" to 2.6" tires. This wide range supports modern tire profiles, providing excellent cornering traction and sidewall support. For best performance, choose tires within this range. The 30mm inner width allows lower pressures without excessive squirm, improving comfort and control on rough terrain.

How much weight can I save compared with an alloy rim?

Depending on the alloy rim, you can save 35–120g per rim. The superlight 385g carbon option is significantly lighter than most alloy rims, which typically weigh 450-550g. This weight reduction improves acceleration and climbing responsiveness, but keep in mind the weight limit of 100kg for the superlight version.

Can I customize the spoke holes and finish?

Yes, we offer multiple finish and spoke-hole options for OEM and custom branding. Whether you need specific spoke counts (e.g., 28/32) or a custom paint job, we can accommodate. Small-to-medium brands can work with us for tailored builds. All custom orders come with a 3-year warranty.

What maintenance and inspection is required?

Regularly inspect the rim for cracks, delamination, or impact damage, especially after heavy hits. Check spoke tension periodically and ensure it stays within the recommended range of >300kg. Clean the rim with mild soap and water, avoid harsh chemicals. Replace the rim if any structural damage is found. The hookless bead area should be checked for wear or deformation to maintain a proper tubeless seal.

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