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Bolt Kit – No 20: Complete Guide to BMC’s Essential Spare Parts for Speedfox Mountain Bikes

If you’re a proud owner of a BMC mountain bike, especially from the popular Speedfox series, keeping your ride in top condition is key to enjoying every trail. One often-overlooked but critical component is the Bolt Kit – No 20. This official spare parts kit from BMC Switzerland delivers precision-engineered replacement bolts designed specifically for your bike’s frame and suspension needs. Whether you’re performing routine maintenance, repairing wear and tear, or upgrading your setup, the Bolt Kit – No 20 ensures everything stays secure, reliable, and performing at its best.

In this in-depth guide, we’ll cover everything you need to know about the Bolt Kit – No 20 — from its specifications and compatible models to installation tips, benefits, and where to buy it. If you’re searching for authentic BMC spare parts that match your high-performance mountain bike, you’ve come to the right place.

What Is the Bolt Kit – No 20?

The Bolt Kit – No 20 is an official OEM spare parts kit manufactured by BMC for their premium mountain bike lineup. Priced at around $59 USD, this compact kit (SKU: 222996) comes in a sleek black finish that matches the modern aesthetics of BMC frames perfectly.

Inside the box, you’ll find exactly 6 long bolts — carefully selected high-grade fasteners engineered to handle the stresses of aggressive trail riding, enduro sessions, or all-day adventures. These aren’t generic hardware store bolts; they’re precision-matched to BMC’s proprietary frame designs, ensuring perfect thread engagement, torque specs, and long-term durability.

BMC designs their bolt kits like the Bolt Kit – No 20 as targeted solutions for specific wear points. Over time, bolts can loosen, corrode, or stretch due to vibration, mud, water exposure, and repeated impacts. Replacing them with the correct kit restores your bike’s structural integrity without guesswork.

Key Features and Specifications of Bolt Kit – No 20

• Contents: 6 long black bolts (exact lengths and threads optimized for BMC suspension pivot points and frame connections).
• Color: Black — blends seamlessly with carbon or alloy frames and resists visible corrosion.
• Material: High-strength steel or alloy construction built to withstand extreme loads and environmental factors.
• Compatibility Focus: Specifically engineered for full-suspension mountain bikes.
• Price: Approximately $59 USD (prices may vary slightly by region or retailer).
• Stock Status: Usually in stock and ready to ship directly from BMC’s official stores.

What sets this kit apart from aftermarket alternatives is its perfect fit and factory-approved tolerances. Using the wrong bolt can lead to stripped threads, frame damage, or compromised suspension performance — issues the Bolt Kit – No 20 eliminates entirely.

Compatible BMC Models for Bolt Kit – No 20

The Bolt Kit – No 20 is tailored for specific Speedfox models, BMC’s versatile trail and enduro mountain bikes known for their balanced geometry and reliable suspension:

• SF02 29
• SF03 29
• SF02TC
• SF03TC

These models (often 29-inch wheeled full-suspension bikes) use the included long bolts at key suspension linkage points, pivot assemblies, and frame junctions. If your bike is one of these, the Bolt Kit – No 20 is the exact match you need for repairs or preventative maintenance.

Owners of older or newer Speedfox variants should always check their frame manual or contact BMC support, as bolt kits are model-specific (for example, Bolt Kit – No 11 is for certain Fourstroke models).

Why Choose the Official Bolt Kit – No 20 Over Generic Options?

Safety and performance are non-negotiable on the trail. Here’s why the Bolt Kit – No 20 is worth the investment:

1. Perfect OEM Fit — No modifications or adapters needed. Threads and lengths match BMC engineering exactly.
2. Durability Under Stress — Designed to handle the forces of big hits, repeated pedaling, and harsh weather.
3. Corrosion Resistance — Black coating protects against rust, even in wet, muddy conditions common in mountain biking.
4. Peace of Mind — Using genuine BMC parts preserves your warranty and ensures the bike handles as the engineers intended.
5. Cost-Effective Long-Term — One kit replaces multiple worn bolts, preventing bigger (and more expensive) frame repairs later.

Aftermarket bolt kits might look similar and cost less, but they often fail to match torque specifications or material strength, leading to creaking, loose pivots, or worse — safety risks.

How to Install the Bolt Kit – No 20

Installing the Bolt Kit – No 20 is straightforward for mechanically inclined riders, but we recommend professional service if you’re unsure. Here’s a general step-by-step overview (always refer to your specific BMC owner’s manual for torque values):

1. Preparation — Clean the area around the old bolts thoroughly. Remove dirt, old grease, and debris.
2. Removal — Use the correct size Allen key or Torx tool to loosen and remove the worn bolts one at a time.
3. Inspection — Check pivot bushings, bearings, and surrounding frame areas for wear.
4. Installation — Apply a light coat of anti-seize or thread locker (as recommended by BMC). Insert the new long bolts from the Bolt Kit – No 20 and torque to spec.
5. Final Check — Cycle the suspension through its full travel and double-check all fasteners.

A full suspension service alongside bolt replacement is ideal — many shops bundle this with the Bolt Kit – No 20 purchase.

BMC Speedfox 03 Two Mountain Bike – 2018, X-Large – Cycle Limited

Maintenance Tips to Maximize Your Bolt Kit – No 20

To get the longest life from your new bolts:

• Inspect pivots every 500–1000 km or after particularly muddy rides.
• Keep suspension linkages clean and properly lubricated.
• Store your bike indoors or use a protective cover to minimize corrosion.
• Re-torque bolts after the first few rides following installation.

Regular use of the right spare parts like the Bolt Kit – No 20 keeps your BMC Speedfox feeling fresh ride after ride.

Where to Buy the Bolt Kit – No 20

The safest place to purchase is directly from official BMC channels:

• BMC USA website (us.bmc-switzerland.com)
• BMC European stores or authorized dealers
• Select online retailers carrying genuine BMC spare parts

Avoid unverified third-party sellers to ensure authenticity. The kit is usually in stock and ships quickly.

Frequently Asked Questions About Bolt Kit – No 20

Is the Bolt Kit – No 20 only for mountain bikes? Yes — it’s specifically designed for the listed Speedfox 29 models.

How many bolts come in the kit? Exactly 6 long bolts — enough to service multiple pivot points.

Can I use these bolts on other BMC models? No. Each kit number (like No 20) is engineered for specific frames. Check your model first.

Does the kit include washers or nuts? The Bolt Kit – No 20 focuses on the long bolts; any required washers are typically reusable from your original setup.

Is professional installation required? Not always, but highly recommended for first-timers or if you’re working on suspension components.

Final Thoughts: Keep Your BMC Ride Trail-Ready with Bolt Kit – No 20

Your BMC Speedfox deserves the best — and that starts with genuine spare parts. The Bolt Kit – No 20 is a small investment that delivers big returns in safety, performance, and riding confidence. Whether you’re prepping for a big race, restoring an older trail weapon, or simply staying ahead of wear, this kit has you covered.

Ready to upgrade your maintenance game? Head over to the official BMC store today and grab your Bolt Kit – No 20. Your bike — and your next adventure — will thank you.

Ride safe, ride strong, and enjoy every kilometer on your perfectly bolted BMC mountain bike!

If you have questions about compatibility or installation for your specific Speedfox model, drop a comment below or reach out to your local BMC dealer. Happy trails!