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Bolt Kit – No 24: The Complete Guide to Maintaining Your BMC Speedfox and Agonist Mountain Bike Suspension

If you’re a proud owner of a BMC Speedfox or Agonist full-suspension mountain bike, you already know how these Swiss-engineered machines deliver exceptional trail performance, precise handling, and long-lasting reliability. But even the best bikes need proper care, especially when it comes to the critical pivot points in the rear suspension. That’s where the Bolt Kit – No 24 comes in as an essential OEM spare parts solution designed specifically for these models from 2018 onward.

In this comprehensive guide, we’ll dive deep into everything you need to know about the Bolt Kit – No 24 – from its exact contents and compatibility to installation tips, maintenance advice, and why choosing the official kit beats generic alternatives. Whether you’re a weekend warrior hitting local trails or a serious enduro rider pushing limits, keeping your suspension pivots in top shape ensures smooth operation, reduced wear, and that signature BMC ride feel. Let’s explore why this kit deserves a spot in every BMC owner’s toolbox.

Understanding the Role of Pivot Hardware in Full-Suspension Mountain Bikes

Modern full-suspension mountain bikes like the BMC Speedfox and Agonist rely on a sophisticated linkage system to absorb bumps and maintain traction. The rear suspension pivots use high-quality bearings, axles, bolts, and circlips to allow smooth movement while supporting the bike’s frame and shock. Over time, exposure to mud, water, dust, and repeated high-impact loads can cause these components to wear out, leading to creaking noises, suspension play, or reduced efficiency.

The Bolt Kit – No 24 is BMC’s official replacement set tailored for the rear suspension linkage on Speedfox and Agonist frames (model years 2018 and later). It’s not just a random collection of hardware – it’s precision-engineered to match the exact tolerances of your bike’s pivot points, ensuring factory-level performance and longevity.

What’s Included in the Bolt Kit – No 24?

One of the biggest advantages of this official kit is that it comes complete with everything you need for a full pivot refresh in one box. Here’s the exact breakdown of components:

• 8 high-quality sealed cartridge bearings (for all pivot points)
• 3 long screws
• 4 long bolts
• 4 short bolts
• 2 axles
• 2 short screws
• 1 ring (typically a spacer or seal)
• 1 circlip (for secure axle retention)

These parts are manufactured to BMC’s strict specifications, using durable materials resistant to corrosion and fatigue. The bearings are pre-greased and sealed to keep out contaminants, while the bolts and axles feature precise threading and lengths matched to the frame’s rocker arm and lower link.

Unlike piecing together aftermarket parts, the Bolt Kit – No 24 eliminates guesswork and ensures perfect fitment every time. Priced around $119 (or equivalent in local currency), it’s a worthwhile investment that can extend your bike’s life by thousands of trail miles.

Compatibility: Which BMC Bikes Need the Bolt Kit – No 24?

This kit is specifically designed for:

• BMC Speedfox models (including Speedfox 01, AL, and AMP variants) from model year 2018 onward
• BMC Agonist models (including Agonist 01 and related versions) from the same era

It appears in BMC’s official spare parts lists for the rear suspension hardware on these popular trail and enduro bikes. If your frame has the characteristic APS (Advanced Pivot System) suspension design with multiple linkage points, chances are the Bolt Kit – No 24 is the right match.

Always double-check your bike’s model year and frame serial number against BMC’s documentation or consult your local dealer to confirm compatibility before ordering.

Signs Your Bike Needs the Bolt Kit – No 24

Don’t wait until your suspension feels sloppy or noisy. Watch for these common warning signs that indicate it’s time for a pivot refresh with the Bolt Kit – No 24:

• Creaking or clicking sounds from the rear triangle during pedaling or compression
• Noticeable play or side-to-side movement in the linkage when the bike is lifted
• Reduced suspension sensitivity or a “sticky” feel over small bumps
• Visible rust, dirt buildup, or dried grease around pivot bolts
• Increased maintenance frequency after wet or muddy rides

Addressing these issues promptly with fresh bearings and hardware prevents more expensive frame damage and keeps your BMC performing at its best.

Step-by-Step Guide to Installing the Bolt Kit – No 24

While BMC recommends professional installation for warranty purposes, many experienced home mechanics can tackle this job with the right tools. Here’s a high-level overview (always refer to your bike’s specific service manual for torque specs and diagrams):

1. Prepare your workspace: Clean the bike thoroughly and support it in a repair stand. Gather tools like a torque wrench, socket set, bearing press/puller, circlip pliers, and grease.
2. Disassemble the old pivots: Remove the rear shock if needed, then carefully extract old bolts, axles, and bearings using appropriate extractors. Note the orientation of each component.
3. Clean everything: Thoroughly degrease the frame pivots and linkage to remove old grease and debris.
4. Install new bearings: Press in the fresh sealed bearings from the Bolt Kit – No 24 using a proper bearing tool to avoid damage.
5. Reassemble with new hardware: Insert axles, bolts, screws, rings, and the circlip in the correct sequence. Apply thread locker and grease where specified.
6. Torque to spec: Use a calibrated torque wrench (typically 8-10 Nm for most bolts on these models) to secure everything without overtightening.
7. Test and ride: Reinstall the shock, check for smooth movement, and take a short test spin before hitting the trails.

Pro Tip: Pair the installation with a full bearing service every 1,000-2,000 miles (or after every muddy season) to maximize the life of your new Bolt Kit – No 24 components.

Tools You’ll Need for a Successful Installation

Basic hand tools aren’t enough for pivot work. Essential items include:

• Bearing press and puller set
• Torque wrench (up to 20 Nm range)
• Circlip pliers
• Pin spanner or bottom bracket tools (for certain linkages)
• High-quality bike grease and thread locker

Investing in these tools pays off if you plan to maintain multiple bikes or perform regular services.

Benefits of Choosing the Official Bolt Kit – No 24 Over Aftermarket Options

Why not grab cheaper generic bearings and bolts online? Here’s why the Bolt Kit – No 24 stands out:

• Perfect OEM fit and tolerances – no modifications needed
• Matched materials and heat treatment for durability
• Includes all required parts in one convenient package
• Maintains BMC warranty compliance
• Superior sealing and corrosion resistance for real-world trail conditions

Riders report smoother suspension action and quieter operation after installing this kit compared to mismatched aftermarket parts.

Maintenance Tips to Extend the Life of Your Bolt Kit – No 24

Prevention is better than cure. Keep your pivots healthy with these habits:

• Rinse your bike after every wet or muddy ride
• Regularly inspect and re-grease pivot areas
• Avoid high-pressure water directly on bearings
• Schedule professional tune-ups annually
• Store your bike in a dry environment

Following these practices can double the lifespan of your suspension hardware.

Frequently Asked Questions About the Bolt Kit – No 24

Q: How often should I replace the parts in the Bolt Kit – No 24? A: Typically every 2-3 years or 2,000-4,000 miles, depending on riding conditions and maintenance.

Q: Is the Bolt Kit – No 24 compatible with older Speedfox models? A: No – it’s designed for 2018+ frames. Earlier models use different numbered kits.

Q: Can I install it myself? A: Yes with experience and proper tools, but a certified BMC dealer ensures perfect results.

Q: Where can I buy the authentic Bolt Kit – No 24? A: Directly from BMC’s official website, authorized dealers, or reputable online bike shops to guarantee genuine parts.

Q: Does it include bearings for the entire frame? A: It covers the main rear suspension linkage pivots – other areas like headset or bottom bracket use separate kits.

Final Thoughts: Keep Your BMC Riding Strong with the Bolt Kit – No 24

Your BMC Speedfox or Agonist is built for adventure, and the Bolt Kit – No 24 is the smart choice for keeping its rear suspension performing like new. By investing in this complete, factory-spec kit, you’re protecting your bike’s performance, safety, and resale value while enjoying smoother, quieter trails.

Ready to refresh your pivots? Head to your local BMC dealer or the official BMC store today and pick up your Bolt Kit – No 24. Your bike – and your next ride – will thank you.