• Bola 700c 45mm Carbon Road Rim – 34mm Outer, 28mm Inner, Tubeless Ready
  • 29er Carbon MTB Rim with a wave profile, 36mm outer width, 30mm inner width, designed for 28 spokes, weighing 300–380g.
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Cerchio MTB BOLA 29er in carbonio | 36mm di larghezza, profilo Wave 20/25mm

Cerchio MTB BOLA 29er in carbonio | 36mm di larghezza, profilo Wave 20/25mm

$320.00 USD
$360.00 USD $320.00 USD
In offerta Esaurito
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Trama
Peso

Cerchio MTB in carbonio da 29" con larghezze 36/30mm, profilo a onda (altezze 20/25mm), tubeless-ready e quattro fasce di peso 300–380g per XC e trail.

Cerchio in carbonio pronto per il trail

Il cerchio MTB in carbonio BOLA da 29" rimodella gli pneumatici da 2.2–2.6" per una maggiore aderenza in curva e una riduzione del rischio di pizzicature. Il suo profilo a onda (opzioni di altezza da 20mm o 25mm) bilancia bassa resistenza aerodinamica e rigidità laterale per XC, trail e light enduro.

Guida all'acquisto.

Fascia di peso - Extreme Light ~300g: XC competitivo, il margine di resistenza agli impatti più sottile.

Fascia di peso - Ultralight ~325g: gare XC e trail veloce.

Fascia di peso - Superlight ~350g: l'equilibrio per il trail.

Fascia di peso - Standard ~380g: durabilità per all-mountain e light enduro.

Altezza del profilo - onda bassa per una bassa resistenza aerodinamica in XC; onda alta per rigidità sul trail e supporto con pneumatici larghi.

Larghezza interna - 30mm: si abbina a pneumatici da 2.0-2.6 pollici a bassa pressione per una maggiore aderenza in curva.

Stessa famiglia - il cerchio MTB asimmetrico Bola 32er è il cugino con ruote più grandi; scegli questo 29er a meno che il tuo telaio non supporti il 32er più grande.

Target di riferimento e note sull'utilizzo.

Piloti XC, amanti del trail ed entusiasti del light enduro.

Non adatto a utilizzi pesanti in downhill o a gare su strada.

La guida che ti attende.

Puntalo verso il singletrack e lascia che il profilo a onda assorba gli urti: copertoni MTB larghi a bassa pressione che fanno presa su radici e curve, mentre il cerchio rigido risponde a ogni pompata e bunny hop. Ne uscirai con più velocità e maggiore sicurezza. Classificato in base al peso reale del ciclista e supportato da una garanzia di 3 anni con spedizione gratuita: montalo e pedala.

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  • Materiale: Carbon
  • Altezza: 20/25mm
  • Larghezza esterna: 36mm
  • Larghezza interna: 30mm
  • Misura: 29er
  • Profile: Wave
  • Peso Tier: Standard 380g, Superlight 350g, Ultralight 325g, Extreme Light 300g
  • PSI massimo: 75
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  • Peso vs Durability: Standard Peso 380g offers maximum impact durability; Extreme Light at 300g reduces mass by ~21% but narrows safety margin for heavy impacts.
  • Stiffness vs Compliance: 20mm wave height prioritizes lower drag and lighter feel; 25mm wave height provides stiffer lateral platform for trail and light enduro.
  • Tire Volume vs Peso: 30mm inner width allows 2.2-2.6" tires for better traction and pinch-flat resistance, but may add Peso compared to narrower rims.
  • Versatility vs Specialization: Offers four Peso tiers and two wave heights to tune for XC, trail, or light enduro, but not specialized for heavy downhill.
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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 Raggio 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 Peso: 110kgs
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  • Gravel Racing: Excellent
  • Bikepacking: Good
  • Gran Fondo / Endurance: Suitable
  • Road Racing: Not recommended
  • Training / Daily Riding: Good
  • Not Recommended For: Road racing and heavy downhill abuse
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  • Frame Compatibility: 29er mountain bike frames (ISO 622)
  • Tire Type: Tubeless-ready, for 2.2-2.6" MTB tires
  • Tire Width Range: 2.0–2.6 inches
  • Freno Standard: Disc Freno only
  • Drivetrain: Compatible with standard MTB drivetrains
  • Rotore Standard: N/D
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Bola 29er Carbon Rim N/A 28H N/A 380g 20&25mm 30mm vedi negozio
Hyper 30 N/A 28H N/A 360g 25mm 30mm ~$350
Gravel 30 N/A 28H N/A 370g 25mm 30mm ~$320
Edge 30 N/A 28H N/A 350g 25mm 30mm ~$380
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How do I set up these rims Tubeless?

The rims are Tubeless-ready with a 6.5mm Presta valve hole. Use standard Tubeless tape and valves. Apply tape around the rim bed, install tires, add sealant, and inflate to recommended pressure of 45-65 psi. The 30mm inner width helps hold the tire bead securely.

What tire sizes are compatible?

These 29er rims have a 36mm outer and 30mm inner width, compatible with 2.0-2.6" MTB tires. The 30mm inner width works well with modern 2.2-2.6" tires for improved traction and reduced pinch-flat risk.

How much Peso can I save compared to standard rims?

The rim is available in four Peso tiers: 380g, 350g, 325g, and 300g. Choosing the Extreme Light (300g) over the Standard (380g) saves 80g per rim (about 21%). For a wheelset, that's a 160g savings, which can noticeably improve acceleration on climbs.

Can I build custom wheels with these rims?

Yes, the rim has a 28-hole drilling and is compatible with J-bend and straight-pull spokes. The ERD is 589mm and Raggio-hole diameter is 4.5mm (customizable). You can choose the Peso tier and wave height (20mm or 25mm) to tailor stiffness and Peso to your riding style.

How do I maintain and inspect these carbon rims?

Regularly inspect for cracks, chips, or delamination, especially after impacts. Check Raggio tension to ensure even stress. Clean with mild soap and water; avoid harsh chemicals. The rim has internal QC for flatness <0.15mm and roundness <0.3mm, but continue regular checks. Maximum rider Peso is 120kg, so heavier riders should choose heavier Peso tiers for durability.

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