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Challenge Grifo Pro (Clincher)
$120.00 CAD
Legendary CX Traction. Open-Casing Convenience.
The engineering highlight of the Challenge Grifo Pro Clincher is its open-tubular SuperPoly casing architecture paired with a fast-cleaning tread design. Built using the same handmade process as Challenge's world-class tubulars, the 300 TPI casing folds smoothly over rim beds and deforms fluidly over off-camber roots, ruts, and slippery grass sectors. Featuring low-profile, fast-rolling center knobs and tall, biting shoulder lugs, the Grifo Pro sheds mud rapidly to maintain constant traction through technical pit sections and sharp corners.
Why the Challenge Grifo Pro Clincher Belongs on Your Wheelset:
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Iconic All-Rounder Tread Pattern: Alternating center blocks minimize rolling resistance on hardpack and tarmac link-ups, while aggressive side knobs dig deep into slick mud and off-camber banks.
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Handmade 300 TPI SuperPoly Casing: Delivers exceptional suppleness and trail feedback, bridging the gap between standard vulcanized clinchers and traditional glued tubulars.
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Puncture Protection System (PPS): Features a tough, high-density fabric sub-tread layer engineered to shield your inner tube against sharp flint, thorns, and gravel impacts.
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Open-Tubular Installation Simplicity: Mounts easily onto standard hooked alloy or carbon clincher rims with standard inner tubes, making tire swaps and roadside tube repairs fast and hassle-free.
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Self-Cleaning Mud Clearance: Generous knob spacing prevents mud buildup and packing, ensuring your tread stays clear and functional on greasy race courses.
Technical Specifications:
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Discipline: Cyclocross / Mud / Hardpack / Grass
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Tire Type: Clincher (Open Tubular – Requires Inner Tube)
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Casing: SuperPoly (300 TPI)
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Bead: Folding Aramid Bead
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Width: 700x33c (33-622 ETRTO)
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Pressure Range: 2.1 – 3.1 Bar (30 – 45 PSI)
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Weight: ~355 grams
The Alegro Perspective: Not every cyclocross racer wants to manage glued tubular wheelsets or mess with high-pressure sealant burps on narrow CX tubeless setups. The Grifo Pro Open Clincher is the perfect solution. Because Challenge uses a handmade 300 TPI casing instead of stiff vulcanized rubber, you get that plush, supple ground-conforming feel that grips amazingly well on wet grass and mud, but with the simple maintenance of a standard tube and rim setup.
Proven CX Tread Mastery. Supple Handmade Feel. Dominate Race Day with Challenge.
