Description
Front Wheel Part Kit – No 1: The Must-Have Upgrade for Smooth-Riding BMC Bikes
If you’re a proud owner of a BMC bicycle, you know the thrill of hitting the trails or pavement with confidence. But even the most reliable bikes need a little TLC to keep performing at their best. Enter the Front Wheel Part Kit – No 1 – a precision-engineered spare parts solution designed specifically for BMC’s popular CG 39 and CG 39 SL models. This kit isn’t just another accessory; it’s the key to restoring that factory-fresh feel to your front wheel, ensuring every ride is as exhilarating as the first.
In this comprehensive guide, we’ll dive deep into everything you need to know about the Front Wheel Part Kit – No 1. From its exact components to installation tips, benefits, and why it’s worth investing in genuine BMC parts, we’ve got you covered. Whether you’re a weekend warrior tackling gravel paths or a serious cyclist pushing limits on cross-country routes, understanding this kit can save you time, money, and headaches down the road.

Image: A sleek BMC gravel bike like the CG 39 series, ready for adventure.
What Exactly is the Front Wheel Part Kit – No 1?
The Front Wheel Part Kit – No 1 is an official BMC spare parts bundle created for targeted maintenance and repairs on the front wheel hub assembly. Produced by BMC Switzerland, a leader in high-performance cycling, this kit targets common wear points in the front wheel system of select models.
Unlike generic aftermarket options that might fit loosely or fail prematurely, the Front Wheel Part Kit – No 1 is tailored for perfect compatibility. It’s ideal for riders noticing subtle issues like increased vibration, unusual noises from the hub, or reduced smoothness during spins. By replacing key internal components, you extend the life of your wheel and maintain the bike’s legendary handling and efficiency.
This kit is particularly popular among BMC enthusiasts because it addresses the front wheel – a critical area for steering, braking, and overall stability. In the world of modern gravel and adventure bikes, where wheels endure mixed terrain, having access to OEM (original equipment manufacturer) parts like this makes all the difference.
What’s Included in the Front Wheel Part Kit – No 1?
One of the standout features of the Front Wheel Part Kit – No 1 is its complete, ready-to-use contents. No hunting for individual pieces or guessing compatibility – everything you need arrives in one compact package.
Here’s a detailed breakdown of the components:
- 1 x Left End Cap: Seals and protects the left side of the hub.
- 1 x Right End Cap: Matches the left for balanced protection and alignment.
- 2 x O-Rings: High-quality seals that prevent dirt, water, and debris from entering the bearing area.
- 1 x Front Axle: The central shaft that connects the wheel to the fork, ensuring precise rotation.
- 2 x Bearings (18307-2RS): Premium sealed bearings designed for low friction and long-lasting durability under load.
These parts are crafted from top-tier materials, including corrosion-resistant metals and advanced sealing technology. The bearings, in particular, are engineered to handle the demands of high-speed descents and rough trails without compromising performance.

Image: A close-up of a bicycle front hub axle and bearing kit, similar to the components in the Front Wheel Part Kit – No 1.
Priced affordably at around $49 USD, this kit offers exceptional value. It’s a smart investment compared to replacing an entire wheel or dealing with frequent shop visits.
Compatible Models: Is the Front Wheel Part Kit – No 1 Right for Your Bike?
The Front Wheel Part Kit – No 1 is specifically engineered for two standout BMC models:
- CG 39: BMC’s versatile gravel bike, known for its carbon frame, comfortable geometry, and all-terrain capability.
- CG 39 SL: The super-light variant, optimized for speed and efficiency while retaining the durability of the standard CG 39.
If your bike falls into either of these categories, this kit is a direct fit. BMC designs these models with modular wheel systems, making upgrades like the Front Wheel Part Kit – No 1 straightforward. Always double-check your frame’s serial number or consult your local BMC dealer for confirmation, but for most owners of these bikes, it’s a plug-and-play solution.

Image: The front wheel from a CG 39 SL, showcasing the hub area where the kit installs.
The Benefits of Using the Front Wheel Part Kit – No 1
Why opt for this specific kit over cheaper alternatives? The advantages are clear for anyone serious about their ride:
- Enhanced Durability: The sealed bearings and O-rings create a robust barrier against the elements, extending service intervals.
- Improved Performance: A fresh axle and bearings mean smoother rolling, better power transfer, and more responsive handling.
- Safety First: Worn front wheel components can lead to wobbles or failures. This kit restores peace of mind.
- Cost-Effective Maintenance: Preventing bigger issues saves hundreds in potential repairs.
- Preserves Bike Value: Using genuine parts keeps your BMC in pristine condition for resale or long-term ownership.
Riders who install the Front Wheel Part Kit – No 1 often report a noticeable difference – that “new bike” feel returns, making long rides more enjoyable.
Step-by-Step Guide: How to Install the Front Wheel Part Kit – No 1
Installing the Front Wheel Part Kit – No 1 is a rewarding DIY project that most mechanically inclined cyclists can tackle in under an hour. Here’s a straightforward guide. (Note: If you’re new to bike maintenance, consider watching a tutorial or visiting a pro shop.)
Tools You’ll Need:
- Bike stand or secure workspace
- Allen keys (various sizes)
- Torque wrench
- Bearing press tool (or improvised with sockets)
- Grease and cleaning supplies
- Hammer and punch (for stubborn parts)
Installation Steps:
- Prepare the Wheel: Remove the front wheel from the fork. Clean the hub thoroughly to remove old grease and debris.
- Disassemble the Hub: Use tools to extract the old axle, bearings, and end caps. Be gentle to avoid damaging the wheel.
- Install New Bearings: Press the two 18307-2RS bearings into place. Apply a light coat of grease for smooth operation.
- Insert the New Axle: Slide the front axle through the hub, ensuring proper alignment.
- Add O-Rings and End Caps: Position the O-rings and secure the left and right end caps. Torque to BMC specifications (typically 8-12 Nm).
- Reassemble and Test: Reinstall the wheel on the bike. Spin it to check for smoothness and adjust as needed.

Image: Detailed view of a bicycle front wheel hub during maintenance.

Image: Diagram illustrating bearing installation in a bike wheel hub.
Pro tip: Always follow the torque specs in your BMC manual to avoid over-tightening, which can lead to premature wear.
Common Front Wheel Issues This Kit Solves
Front wheels take a beating, especially on gravel bikes like the CG 39 series. Here are frequent problems the Front Wheel Part Kit – No 1 directly addresses:
- Noisy or Grinding Bearings: Dirt ingress causes this; new sealed bearings fix it instantly.
- Loose or Wobbly Axle: Worn end caps and O-rings lead to play – the kit restores tight tolerances.
- Vibration at Speed: Imbalanced rotation from degraded components – solved with fresh parts.
- Water Damage: O-rings prevent moisture from ruining internals during wet rides.
By proactively using this kit, you avoid these pitfalls and keep your adventures uninterrupted.
Maintenance Tips to Maximize Your BMC Bike’s Front Wheel Life
Beyond the Front Wheel Part Kit – No 1, regular care keeps your setup in top shape:
- Clean your bike after every muddy ride.
- Check hub play monthly.
- Regrease bearings annually or after 2,000 miles.
- Inspect for cracks or damage before big trips.
- Store your bike in a dry place to minimize corrosion.
Following these habits, combined with occasional use of kits like the Front Wheel Part Kit – No 1, ensures your BMC performs reliably for years.

Image: A cyclist enjoying a trail on a BMC mountain bike, highlighting the importance of reliable wheels.
Real Rider Feedback on the Front Wheel Part Kit – No 1
Don’t just take our word for it. BMC owners rave about this kit:
“I replaced the bearings on my CG 39 after a wet season, and the difference was night and day. The Front Wheel Part Kit – No 1 made my bike feel brand new again.” – Alex T., Colorado
“Perfect fit, easy install. Saved me a trip to the shop.” – Sarah M., California
These testimonials highlight why genuine parts from BMC are the gold standard.
Where to Buy the Front Wheel Part Kit – No 1
The best place to get your Front Wheel Part Kit – No 1 is directly from authorized BMC dealers or the official BMC website. Look for retailers like BMC USA Corporation for fast shipping and authenticity guarantees. Avoid unverified third-party sellers to ensure you’re getting the real deal.
Conclusion: Invest in Your Ride with the Front Wheel Part Kit – No 1
Your BMC bike deserves the best, and the Front Wheel Part Kit – No 1 delivers exactly that. It’s more than a repair kit – it’s an investment in performance, safety, and longevity. Whether you’re fine-tuning your CG 39 for the next epic ride or simply maintaining what you love, this kit has your back (and your wheels).
Ready to roll smoother? Grab the Front Wheel Part Kit – No 1 today and experience the difference quality parts make. Happy riding!







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