Airborne X-1 Titanium Frame | 55cm | 3AL/2.5V Ti | Excellent

Description

⭐ Condition Excellent overall condition with no damage. BB threads are perfect. Minor blemishes to decals and light scuffs – typical for a premium titanium frame that’s been loved. The brushed titanium finish remains beautiful and the substantial construction shows Airborne’s aerospace-grade craftsmanship.

📏 Will this fit me? Frame Size: 55cm – Medium

• Top Tube: 54cm (center-to-center, sloped geometry)
• Seat Tube: 55cm (top-to-center)
• Down Tube: 64cm (center-to-center)
• Chainstays: 40-41cm (adjustable by 20mm!)

📦 What’s Included

• Airborne X-1 titanium frame in excellent condition
• Seat clamp and water bottle screws
• Braze-on front derailleur mount
• Barrel adjusters for shifter cables
• Three water bottle mounting locations (including behind seat tube)

🏆 The Story Behind the Frame

Airborne X-1 – Serial #E0306025 – Aviation Legend

“Breaking Barriers on Two Wheels”

This isn’t just any titanium frame – it’s a tribute to aviation history itself. Dating to the late 1990s-early 2000s (Shimano 6500 Ultegra era), the X-1 name honors Chuck Yeager’s historic flight on October 14, 1947, when he piloted the Bell X-1 “Glamorous Glennis” to Mach 1.06, becoming the first person to break the sound barrier. Notice the authentic aviation details: “NO STEP” and “BEWARE OF BLAST” stickers, plus “FIRST SUPERSONIC FLIGHT, MACH 1.06 10/14/47” on the top tube – pure aerospace authenticity.

🚴 The Ride Ti 3AL/2.5V aerospace-grade titanium delivers that legendary titanium ride quality – compliance where you want it, stiffness where you need it. At just 1765g, this frame punches way above its weight class. The unique elliptical tubing (only the head tube is round!) and adjustable chainstays create a ride that’s both comfortable for centuries and absolutely devastating for time trials.

The Build Quality is NUTS That bottom bracket isn’t just stiff – it’s a missile launcher. The seat tube welded directly to the chainstays and BB creates a propulsion chamber that turns every watt into forward motion. When you stomp on the pedals, this thing doesn’t flex – it accelerates. The massively reinforced BB shell with those fat welds means zero power loss, just pure thrust. Those adjustable dropouts (20mm range) aren’t just for show – they’re for dialing in the perfect chain line when you’re chasing KOMs or TT PRs.

🔧 Workshop Wisdom – despite the unique shaped tubes, the frame is sized to fit most standard components. It’s an easy build. See below.

Before You Buy – A Note from Paul Every frame I sell has been personally inspected and honestly described, but I want you to be 100% confident in your decision. Please take a moment to watch the detailed video included with this listing. Due to the personal nature of frame fit and the cost of shipping, I cannot accept returns. That’s why I encourage you to reach out to me directly with any questions, whether they’re about dimensions, condition, or build suggestions. I’m Paul – not a chatbot, not a sales team, just a fellow cyclist who wants to make sure this frame finds the right home. Let’s talk about this frame and make sure it’s perfect for you before you buy.

🔧 What do I need to build this frame? (Please contact me if you need anything here)

• Headset: 34mm cup, external, threadless
• Bottom Bracket: 68mm shell, English threading
• Seatpost: 27.2mm
• Front Derailleur: Braze-on, bottom pull
• Brakes: 700c wheel compatible
• Rear spacing: 130mm standard
• Wheel clearance: 700c with ample tire clearance
• Internal cable routing for front derailleur and rear brake

📋 Other Frame Details

• Material: Ti 3AL/2.5V aerospace-grade titanium
• Weight: 1765g (3.9lbs) – incredibly light for titanium
• Era: Late 1990s-early 2000s (Shimano 6500 era)
• Unique elliptical tubing throughout (except head tube)
• Adjustable chainstays (20mm range for perfect setup)
• Massively reinforced bottom bracket – seat tube welded to chainstays
• Heavy, fat welds showing serious aerospace construction
• Molded seat tube shortens wheelbase by 16mm for snappy handling
• Three water bottle mounts for long-distance capability
• Time Trial geometry with steep seat tube and aggressive positioning

Is This Your Bike Thing? This X-1 connects cycling to aviation history while delivering modern titanium performance that’ll make you question physics. Ready to break your own sound barrier on the road?

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