Description

Axle Kit – No 7 Stealth: Complete Guide to BMC’s Premium Thru-Axle Set for Road and Gravel Bikes

If you ride a high-end BMC machine like the Teammachine SLR or Kaius 01, you already know that every detail matters when it comes to performance, safety, and that signature sleek look. One small but vital component that can make or break your ride is the thru-axle system. That’s where the Axle Kit – No 7 Stealth comes in — the official genuine BMC replacement part engineered for perfect compatibility and long-term reliability.

Review: Carbon-Ti X-Lock lightweight alloy thru axles lighten the unsprung load – Bikerumor

Whether you’re replacing worn-out axles, upgrading for a fresh build, or simply maintaining your prized BMC bike, this kit delivers OEM-level quality in a lightweight, all-black package. In this in-depth guide, we’ll cover everything you need to know about the Axle Kit – No 7 Stealth — from exact specifications and bike compatibility to installation tips, benefits, and why sticking with genuine BMC parts is the smartest choice for serious cyclists.

What Exactly Is the Axle Kit – No 7 Stealth?

The Axle Kit – No 7 Stealth is a complete front-and-rear thru-axle set designed and manufactured by BMC Switzerland. It’s a direct OEM spare part (SKU 30000699) finished in a stealthy matte black that blends seamlessly with modern carbon frames and high-end components.

Key specifications include:

• Front axle: 12×100 mm standard, 119 mm overall length (part CTC0008-L2V7)
• Rear axle: 12×142 mm standard, 163 mm overall length (part CTC0007-L2V7)
• Total weight: Just 55 g (front 25 g, rear 30 g) — incredibly light for thru-axles
• Color: Stealth black for a clean, integrated appearance
• Material and design: Precision-machined for smooth operation, excellent stiffness, and long-term durability

Unlike generic aftermarket axles that may require spacers or compromises in fitment, this kit is purpose-built for BMC’s latest road, gravel, and e-road platforms. The “Stealth” designation refers to the all-black finish that disappears against dark frames and components — a favorite detail among riders who value aesthetics as much as performance.

How to easily fit & remove through-axle wheels – Cycling News | Bike Reviews | road.cc

Which BMC Bikes Are Compatible with the Axle Kit – No 7 Stealth?

BMC has engineered this kit specifically for their flagship models. It fits the following bikes (confirmed by official BMC documentation):

• Teammachine SLR Mpc., 01 and SLR Gen 4
• Kaius 01 Gen 1 (gravel rocket)
• Roadmachine 01 AMP (e-road)
• 257 AMP
• Alpenchallenge AMP

Important note: It is not compatible with Kaius 01 Gen 1.5 models that use the UDH (Universal Derailleur Hanger) interface. Always double-check your frame’s year and exact variant before ordering.

This precise compatibility means you get perfect thread engagement, correct axle length, and optimal wheel alignment every single time — no guesswork, no extra washers, and no risk of frame damage.

Teammachine SLR 01 TWO

Why Choose the Axle Kit – No 7 Stealth Over Generic Options?

Thru-axles might seem like simple metal rods, but they play a critical role in your bike’s handling, braking power, and overall stiffness. Here’s why the Axle Kit – No 7 Stealth stands out:

1. Perfect OEM Fit and Safety Genuine BMC axles are machined to exact tolerances for your frame’s dropout design. This eliminates play, ensures even disc brake rotor alignment, and prevents premature wear on your hub bearings.
2. Lightweight Performance At only 55 g for the complete set, these axles save grams where it counts — unsprung weight. Every gram matters on climbs and during aggressive cornering.
3. Stealth Aesthetics The deep black finish matches BMC’s premium carbon layups and modern component groups (SRAM, Shimano, Campagnolo). No shiny silver axles ruining your bike’s clean lines.
4. Durability and Corrosion Resistance Designed for all-weather riding, these axles hold up to rain, mud, and road salt far better than cheaper alternatives.
5. Easy Wheel Changes The smooth threading and lever design make removing and reinstalling wheels lightning-fast — essential for race-day tire swaps or trail-side repairs.

Riders upgrading from stock or aftermarket axles often report noticeably sharper handling and more confident braking thanks to the increased frame rigidity provided by precise axle fitment.

BMC Kaius 01 Three SRAM Rival eTap AXS Carbon Gravel Bike | Mack Cycle – Mack Cycle & Fitness

Step-by-Step: How to Install the Axle Kit – No 7 Stealth

Installing the Axle Kit – No 7 Stealth is straightforward and takes less than 10 minutes with basic tools. Here’s a quick guide:

Tools needed: 5 mm or 6 mm hex (depending on your lever style), torque wrench recommended (check BMC manual for exact Nm values — usually 8–12 Nm).

1. Remove old axles — Loosen and thread out the existing front and rear axles while supporting the wheel.
2. Insert new front axle — Slide the wheel into the fork, thread in the new 119 mm front axle clockwise until snug, then torque to spec.
3. Install rear axle — Position the rear wheel, align the derailleur hanger, and thread in the 163 mm rear axle. Hand-tighten first, then torque.
4. Check alignment — Spin the wheels and ensure rotors sit centered in the calipers.
5. Test ride — Do a short spin around the block and re-check torque after the first 20–30 km.

Pro tip: Apply a tiny dab of anti-seize to the threads for easier future removal, especially if you ride in wet or salty conditions.

Maintenance Tips to Keep Your Stealth Axles Performing Perfectly

• Clean threads regularly with a soft brush and degreaser.
• Inspect for wear every 2,000–3,000 km or after any crash.
• Re-grease the lever mechanism once per season.
• Store spare axles in a dry place to prevent corrosion.

Because these are genuine BMC parts, you can trust they’ll last for years with minimal fuss.

Real-World Performance: What Riders Say

Owners of Teammachine SLR and Kaius bikes consistently praise the Axle Kit – No 7 Stealth for restoring that “new bike feel.” Many report quieter operation, better power transfer under hard efforts, and that satisfying click when the lever closes securely. The black finish also earns compliments at group rides — it just looks pro.

Should You Buy the Axle Kit – No 7 Stealth?

If you own any of the compatible BMC models listed above, this kit is a no-brainer. At around $59–$79 depending on retailer, it’s an affordable way to maintain factory performance and aesthetics. Buying genuine ensures you avoid the headaches of mismatched aftermarket parts that can void warranties or cause alignment issues.

Ready to upgrade or replace? Head to your local BMC dealer or the official BMC online store to grab the Axle Kit – No 7 Stealth today. Your bike — and your next ride — will thank you.

Have questions about compatibility or installation for your specific BMC model? Drop a comment below or reach out to your authorized BMC service center. Ride safe, ride fast, and keep that stealthy black aesthetic shining!