Wulf - Core-Line
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Every Core Line bike ships with a Flip-Flop Hub, allowing you to easily switch between Fixed Gear and a standard Single-Speed Freewheel that allows you to coast." } }, { "@type": "Question", "name": "Does the Core Line come with brakes?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, this model includes both front and rear dual-pivot forged alloy caliper brakes and levers, making it 100% street-legal and safe for urban riding." } }, { "@type": "Question", "name": "What is the benefit of a Hi-Tensile Steel frame?", "acceptedAnswer": { "@type": "Answer", "text": "High-Tensile steel provides incredible durability and long-lasting resilience for city riding, offering a smooth, vibration-dampening ride that handles rough pavement beautifully." } }, { "@type": "Question", "name": "What is the gear ratio on the Core Line?", "acceptedAnswer": { "@type": "Answer", "text": "The bike features a 44x16 gear ratio. This setup is optimized for stop-and-go city commuting, providing excellent off-the-line acceleration and manageable hill climbing." } }, { "@type": "Question", "name": "How much does the Core Line weigh?", "acceptedAnswer": { "@type": "Answer", "text": "The average weight is approximately 25 lbs (11.5 kg) depending on the frame size, providing a stable, momentum-carrying feel in urban environments." } }, { "@type": "Question", "name": "What tire size comes on the Core Line?", "acceptedAnswer": { "@type": "Answer", "text": "The Core Line comes stock with Kenda 700c x 28mm tires, offering the perfect blend of fast-rolling speed and enough volume to soak up standard road imperfections." } } ] } /* 1. 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Two-Column Layout Sections */ [data-belcopia-product] .two-col-container { display: grid; grid-template-columns: 1fr; align-items: center; gap: 30px; } @media (min-width: 768px) { [data-belcopia-product] .two-col-container { grid-template-columns: 1fr 1fr; } [data-belcopia-product] .two-col-container.reverse > :first-child { order: 2; } [data-belcopia-product] .two-col-container.reverse > :last-child { order: 1; } } [data-belcopia-product] .two-col-container img { width: 100%; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.08); display: block; overflow: hidden; transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); } @media (hover: hover) { [data-belcopia-product] .two-col-container img:hover { transform: scale(1.02); } } [data-belcopia-product] .two-col-list { list-style: none; padding: 0; } [data-belcopia-product] .two-col-list li { display: flex; align-items: flex-start; margin-bottom: 12px; } [data-belcopia-product] .two-col-list li::before { content: '✓'; color: #E3B123; font-size: 1.5em; line-height: 1.2; margin-right: 15px; font-weight: bold; } /* 6. 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Video Grid */ [data-belcopia-product] .video-grid { display: grid; grid-template-columns: 1fr; gap: 15px; width: 100%; max-width: 1000px; margin: 0 auto; } @media (min-width: 768px) { [data-belcopia-product] .video-grid { grid-template-columns: 1fr 1fr; } } [data-belcopia-product] .video-wrapper { position: relative; padding-bottom: 56.25%; height: 0; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 15px rgba(0,0,0,0.1); background-color: #000; } [data-belcopia-product] .video-wrapper iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;} /* 9. Data Tables (New Responsive Setup) */ [data-belcopia-product] .table-wrapper { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 25px; border-radius: 8px; border: 1px solid #ddd; } [data-belcopia-product] .spec-table { width: 100%; border-collapse: collapse; min-width: 700px; } [data-belcopia-product] .spec-table th, [data-belcopia-product] .spec-table td { border: 1px solid #ddd; padding: 12px; text-align: left; font-size: 0.9em; } [data-belcopia-product] .spec-table th { background-color: #f9f9f9; font-weight: bold; text-transform: uppercase; font-size: 0.8em; letter-spacing: 0.5px; color: #2c2c2c; } [data-belcopia-product] .spec-table.two-col th { width: 30%; } [data-belcopia-product] .spec-table tr:nth-child(even) { background-color: #fcfcfc; } [data-belcopia-product] .table-note { font-size: 0.8em; color: #666; font-style: italic; margin-top: 5px;} /* Custom Sizing Guide Layout */ [data-belcopia-product] .sizing-container { display: grid; grid-template-columns: 1fr; align-items: center; gap: 30px; } @media (min-width: 768px) { [data-belcopia-product] .sizing-container { grid-template-columns: 1fr 1fr; } } [data-belcopia-product] .sizing-container img { width: 100%; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.08); display: block; cursor: zoom-in; } [data-belcopia-product] .sizing-table { min-width: 0 !important; } /* 10. List Section */ [data-belcopia-product] .list-section ul { list-style: none; padding: 0; margin-top: 10px; } [data-belcopia-product] .list-section li { display: flex; flex-direction: column; padding-left: 35px; position: relative; margin-bottom: 15px; } [data-belcopia-product] .list-section li::before { content: '✓'; position: absolute; left: 0; top: 0; color: #E3B123; font-size: 1.6em; line-height: 1; } [data-belcopia-product] .list-section .item-title { font-weight: bold; text-transform: uppercase; letter-spacing: 0.5px; color: #2c2c2c;} [data-belcopia-product] .list-section .item-desc { font-size: 0.85em; color: #555; } /* 11. Minimalist Line Accordion Section */ [data-belcopia-product] .accordion-wrapper { margin: 40px 0; border-top: 1px solid #eee; } [data-belcopia-product] details.accordion-item { background-color: transparent; border: none; border-bottom: 1px solid #eee; margin-bottom: 0; overflow: hidden; } [data-belcopia-product] details.accordion-item summary { padding: 24px 45px 24px 0; font-size: 1.6em; font-weight: 500; color: #1a1a1a; cursor: pointer; position: relative; outline: none; list-style: none; margin: 0; transition: color 0.3s ease; } [data-belcopia-product] details.accordion-item summary:hover, [data-belcopia-product] details.accordion-item[open] summary { color: #5f7038; } [data-belcopia-product] details.accordion-item summary::-webkit-details-marker { display: none; } [data-belcopia-product] details.accordion-item summary::after { content: ''; position: absolute; right: 15px; top: 50%; width: 12px; height: 12px; border-right: 2px solid #1a1a1a; border-bottom: 2px solid #1a1a1a; transform: translateY(-70%) rotate(45deg); transition: transform 0.3s ease, border-color 0.3s ease; } [data-belcopia-product] details.accordion-item[open] summary::after { transform: translateY(-30%) rotate(-135deg); border-color: #5f7038; } [data-belcopia-product] .accordion-content { padding: 0 0 30px 0; background-color: transparent; border-top: none; } [data-belcopia-product] .accordion-content h4 { margin-top: 15px; } /* 12. 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Expert Insight & Technical Proof Grids */ [data-belcopia-product] .expert-insight { background-color: #fdfdfd; border-left: 4px solid #5f7038; padding: 25px; margin: 10px 0 30px 0; border-radius: 4px; box-shadow: 0 2px 10px rgba(0,0,0,0.02); } [data-belcopia-product] .expert-insight-quote { font-style: italic; font-weight: 500; font-size: 1.15em; color: #1a1a1a; margin: 0 0 12px 0; line-height: 1.5; } [data-belcopia-product] .expert-insight-attr { font-weight: bold; font-size: 0.85em; color: #5f7038; text-transform: uppercase; letter-spacing: 1px; } [data-belcopia-product] .three-col-grid { display: grid; grid-template-columns: 1fr; gap: 20px; margin-top: 20px; } @media (min-width: 768px) { [data-belcopia-product] .three-col-grid { grid-template-columns: repeat(3, 1fr); } } [data-belcopia-product] .tech-proof-card { background: #fff; border: 1px solid #eee; padding: 25px 20px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.03); transition: transform 0.4s ease, box-shadow 0.4s ease; position: relative; overflow: hidden; cursor: default; } /* Premium Hover Bottom Border Slide */ [data-belcopia-product] .tech-proof-card::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 3px; background-color: #E3B123; transition: width 0.4s ease; } @media (hover: hover) { [data-belcopia-product] .tech-proof-card:hover::after { width: 100%; } [data-belcopia-product] .tech-proof-card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.08); } } [data-belcopia-product] .tech-proof-card h4 { color: #E3B123; font-size: 1.1em; margin-bottom: 10px; border-left: none; padding-left: 0; } [data-belcopia-product] .tech-proof-card p { font-size: 0.9em; color: #555; margin: 0; line-height: 1.5; } Frame Material Hi-Tensile Steel Drivetrain Fixed / Single Speed Wheel Size 40mm Deep-V 700c Weight ~25 lbs Use Type Urban Street State Bicycle Co. Wulf The Stealth Core-Line Classic "Move in Silence. Strike with Speed." Widely considered the ultimate urban stealth machine, the State Bicycle Co. Wulf Core-Line is your agent of freedom in an over-complicated world. Stop waiting for public transit and stop blending into the crowd. Engineered for the rider who values zen-like simplicity and head-turning aesthetics, this top-rated city bike strips away the noise and maintenance of multi-speed drivetrains. Feel the intuitive connection of a fixed-gear or the effortless coast of a single-speed—the choice is yours. Built on a foundation of incredibly rugged High-Tensile Steel and rolling on classic aerodynamic 40mm Deep-V rims, you aren't just traveling; you're dominating your route under the radar. "The Wulf is our love letter to stealth urban street culture. We combined the bulletproof reliability of our Hi-Tensile steel Core Line with a timeless matte black aesthetic, ensuring you hit the streets looking sharp and riding hard." — State Bicycle Co. Product Team RECLAIM YOUR TIME IF... You are tired of cheap bikes that break down and require constant drivetrain maintenance. You want a stylish, premium machine that you can effortlessly carry up to your walk-up apartment. You value a silent, highly responsive ride that reacts instantly to your pedal input. You believe your transport should be a beautiful statement piece reflecting your discerning style. UNDER THE RADAR Details That Demand Respect This bike is meticulously designed to fly under the radar while turning heads. See how the sleek, matte black finish absorbs the light, creating a look that is both classic and highly contemporary. Notice the thoughtful details, from the premium saddle to the matching black components. It's a cohesive, striking aesthetic that sets you apart from the sea of generic commuters. This is a machine built for those who understand that how you get there matters just as much as the destination. FIXED OR FREE: YOU DECIDE Your Ride, Your Choice Why choose between pedaling purity and city practicality? The integrated Flip-Flop Hub gives you both. Ride "Fixed" to feel every inch of the road and master the art of the skid, or flip the rear wheel to the "Freewheel" side for effortless single-speed coasting down city bridges. This represents the pinnacle of maintenance-free performance wrapped in an elegant package. No derailleurs to bend, no shifter cables to stretch. It is the ultimate expression of agentic cycling: just you and the bike in total harmony. KEY FEATURES Swipe to see more >>> Hi-Tensile Steel Frame Built to withstand the daily urban grind, offering a smooth, reliable ride that handles rough pavement with ease. 40mm Deep-V Wheels Classic track-style aesthetics meet bomb-proof durability. These deep-dish rims cut through the city and look incredibly sleek. Customizable Cockpit Choose your ride: classic All-Road Drop Bars or agile Riser Bars complete with official Vans waffle pattern grips. Flip-Flop Hub Includes a 16T freewheel and fixed gear cog. Seamlessly switch between pure fixed-gear riding and relaxed single-speed coasting. Fast-Rolling 28c Tires Kenda 700x28c tires strike the perfect balance—flat-out speed on the pavement with just enough cushion to handle road imperfections. Dual Caliper Brakes Includes front and rear forged alloy caliper brakes right out of the box, ensuring safe, reliable stopping power in traffic. WHY THIS BUILD MATTERS The Core Line is meticulously engineered for the realities of urban commuting. Here is the technical breakdown of why this bike dominates the city streets. The Perfect Urban Ratio Unlike track bikes geared for high-end top speeds, the Core Line uses a perfectly dialed 44x16 gear ratio. This specific ratio provides explosive acceleration off the line at stoplights and makes climbing city bridges significantly more manageable. Hi-Tensile Steel Resilience Aluminum frames are rigid and transfer every bump directly to your spine. The Core Line utilizes a High-Tensile Steel chassis that acts as a natural micro-suspension system, effectively muting road chatter and reducing rider fatigue over long commutes. 40mm Deep-V Aerodynamics The signature 40mm deep-dish rims aren't just for classic aesthetic appeal. The deeper profile drastically increases the structural integrity and lateral stiffness of the wheel, ensuring it stays true even after slamming into unexpected potholes. Technical Specifications Frame Durable High-Tensile Steel Fork High-Tensile Steel, 1 ⅛" Threadless Steerer Bottom Bracket Sealed Cartridge, JIS Square Taper, English Threaded, 68mm x 103mm Brakes Dual Pivot Forged Alloy (Clamp Diameter: 23.8mm) Chain & Chainring YAB Chain | 44T, 130 BCD Chainring Crank Forged 6061 Aluminum, 170mm Crank Arms Handlebars Aluminum (Bullhorn: 420mm | Drop: 450mm | Riser: 570mm w/ Vans Grips) Headset & Stem 1 ⅛" threadless Headset | Steel Stem (25.4mm clamp, Length: 90mm, Rise: +/- 7°) Hubs Sealed Bearing, Flip-Flop Hub (16T Freewheel and Fixed Cog), Spacing: F:100mm / R:120mm, Bolts: M10 Wheels 700c Aluminum Wheel Set with 40mm Rim Depth Spokes 14G Steel, 3 Cross Pattern (Spoke Length F/R: 269mm) Tires Kenda Brand 700c x 28mm (Suggested Max Tire: 28mm) Seatpost & Clamp Alloy, D: 27.2mm, L: 220mm | Clamp: Aluminum, D: 29.5mm Saddle & Pedals Polyurethane w/ Steel Rails | Plastic Platform Pedals Sizing Guide Frame Size Rider Height 46 cm (Small) Under 5'4" 50 cm (Medium) 5'4" - 5'7" 54 cm (Large) 5'7" - 5'11" 58 cm (X-Large) 5'11" - 6'2" We recommend visiting a local bike shop to ensure you get the perfect fit for your body. Frame Geometry Measurement 46cm 50cm 54cm 58cm Actual Top Tube Length 499mm 513mm 537mm 554mm BB Drop 50mm 50mm 50mm 50mm Chain Stay Length 405mm 405mm 405mm 405mm Complete Bike Weight 11,406g 11,580g 11,740g 11,870g Crank Arm Length 170mm 170mm 170mm 170mm Effective Top Tube 513mm 522mm 538mm 555mm Fork Length 402mm 402mm 402mm 402mm Fork Offset 45mm 45mm 45mm 45mm Head Tube Length 105mm 105mm 105mm 135mm Head Tube Angle 71.5° 72° 71° 73° Reach 368mm 374mm 380mm 386mm Seat Tube 460mm 500mm 540mm 580mm Seat Tube Angle 74° 74° 73° 73° Stack 508mm 522mm 536mm 570mm Standover Height 733mm 751mm 775mm 811mm Wheel Base 975mm 985mm 989mm 1003mm Frequently Asked Questions What is the standover height of the Core Line frame? Standover height ranges from 733mm (28.8") on the 46cm frame to 811mm (31.9") on the 58cm frame. We recommend measuring your actual inseam to ensure at least 1 inch of clearance over the top tube. Can I ride this bike if I’ve never ridden a fixie before? Yes. Every Core Line bike ships with a Flip-Flop Hub, allowing you to easily switch between Fixed Gear and a standard Single-Speed Freewheel that allows you to coast. Does the Core Line come with brakes? Yes, this model includes both front and rear dual-pivot forged alloy caliper brakes and levers, making it 100% street-legal and safe for urban riding. What is the benefit of a Hi-Tensile Steel frame? High-Tensile steel provides incredible durability and long-lasting resilience for city riding, offering a smooth, vibration-dampening ride that handles rough pavement beautifully. What is the gear ratio on the Core Line? The bike features a 44x16 gear ratio. This setup is optimized for stop-and-go city commuting, providing excellent off-the-line acceleration and manageable hill climbing. How much does the Core Line weigh? The average weight is approximately 25 lbs (11.5 kg) depending on the frame size, providing a stable, momentum-carrying feel in urban environments. What tire size comes on the Core Line? The Core Line comes stock with Kenda 700c x 28mm tires, offering the perfect blend of fast-rolling speed and enough volume to soak up standard road imperfections. What's In The Box State Bicycle Core LineArrives 90% assembled. Just attach the front wheel, pedals, and handlebars. Platform Pedal SetDurable plastic platform pedals included out of the box. Braking SystemBoth Front and Rear caliper brakes are included in the box. × function openBelcopiaModal(src) { var modal = document.getElementById("belcopia-image-modal"); var modalImg = document.getElementById("belcopia-modal-img"); modal.classList.add("show"); modalImg.src = src; } function closeBelcopiaModal() { var modal = document.getElementById("belcopia-image-modal"); modal.classList.remove("show"); }
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