Core-Line - Earthstone
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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 Earthstone 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 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 24.5 lbs depending on the frame size, providing a stable, momentum-carrying feel in urban environments." } } ] } /* 1. 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Data Tables */ [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 Durable Steel Drivetrain Fixed / Single Speed Wheel Size 40mm Deep-V 700c Weight ~24.5 lbs Use Type Urban Street State Bicycle Core-Line Earthstone Edition "Perfectly Imperfect. Unapologetically Raw." Widely considered the ultimate urban statement piece, the State Bicycle Co. Core-Line Earthstone is your agent of freedom in a world of plastic and carbon. Stop blending into the crowd and start owning the pavement. Engineered for the rider who values zen-like simplicity and raw, industrial aesthetics, this top-rated city bike strips away the noise and maintenance of multi-speed drivetrains. Built on a foundation of incredibly rugged High-Tensile Steel, the Earthstone wears its heart on its sleeve with a clear-coated raw finish and blazing red hubs. Feel the intuitive connection of a fixed-gear or the effortless coast of a single-speed—the choice is yours. You aren't just traveling; you're dominating your route with unfiltered style. "The Earthstone is our homage to brutalist craftsmanship. We exposed the TIG welds and paired them with a raw steel finish and striking anodized red hubs. It’s built so tough and fast, it doesn't just survive the urban jungle—it commands it." — State Bicycle Co. Product Team RECLAIM YOUR TIME IF... You are tired of fragile bikes and want an indestructible, raw steel machine. You demand a silent, highly responsive ride that reacts instantly to your pedal input. You want a striking, brutalist statement piece that guarantees you stand out from the pack. You value the pure, unadulterated connection of a fixed-gear or single-speed drivetrain. INDUSTRIAL BEAUTY Raw and Refined This bike doesn't hide behind paint. The raw-steel finish is the star, showcasing the honest, brutal craftsmanship of the frame, complete with the unique color variations from the TIG welding process. See how this industrial canvas makes the vibrant, anodized red hubs pop with an electrifying flash of color. It's a head-turning design that broadcasts your deep-rooted appreciation for unfiltered engineering. Guaranteed to be unlike any other bike on the rack. TWO WAYS TO RIDE Fixed or Free: You Decide The heart of the Core-Line is its versatility, all thanks to the flip-flop hub. Want to feel every nuance of the road? Ride it fixed. Sense the unbroken chain of motion as your legs become one with the machine, a rhythmic pulse connecting you to the pavement. Prefer a more relaxed journey? Simply flip the wheel and enjoy the carefree glide of a classic single-speed. It 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. KEY FEATURES Swipe to see more >>> Durable Steel Frame A strong and reliable foundation that provides a famously smooth ride, absorbing road chatter for enhanced comfort. Deep V Wheel Set Stylish and strong 40mm deep-v rims paired with sealed bearing hubs for a smooth, low-maintenance ride. Customizable Handlebars Choose your cockpit: classic Drop Bars, agile Riser Bars with Vans grips, or aggressive Bullhorn bars. Flip-Flop Hub The ultimate in versatility. Easily switch between a pure fixed-gear setup and a classic single-speed with freewheel. Fast-Rolling 28c Tires Tires strike the perfect balance—flat-out speed on the pavement with just enough cushion to handle road imperfections. Front & Rear Brakes Dependable, easy-to-maintain caliper brakes are included for confident stopping power right out of the box. 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. Steel Resilience Aluminum frames are rigid and transfer every bump directly to your spine. The Core Line utilizes a 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) 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 | Platform Pedals Included 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 28.8" on the 46cm frame to 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 Earthstone 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 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 24.5 lbs depending on the frame size, providing a stable, momentum-carrying feel in urban environments. What's In The Box State Bicycle Core-LineArrives 90% assembled. Just attach the front wheel, pedals, and handlebars. Platform Pedal SetDurable 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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