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Squeak-Free Ride: Changing Disc Brake Pads – Here’s How!

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The ultimate guide for safely and efficiently changing your brake pads – including professional tips for optimal performance.

When should I change the brake pads of my bicycle disc brake?

You should change the brake pads when you hear metallic grinding noises , notice a noticeably reduced braking performance or when the pad thickness at the thinnest point falls below 1.5 mm (without backing plate). A regular visual inspection, approximately every 500 km, is recommended.

Can I change bicycle brake pads myself or do I need a workshop?

With a basic technical understanding, the right tools, and a good manual, the change of brake pads can often be done by yourself. However, realistically assess your skills. If in doubt, a visit to a specialized workshop is the safer choice, to avoid assembly errors and safety risks.

What tools do I need to change the disc brake pads?

For the change, you typically need: suitable new brake pads, an Allen key set, a brake piston return tool (or a wide, flat plastic lever), brake cleaner, a clean cloth, and ideally a torque wrench. Depending on the braking system, pliers for retaining pins may also be necessary.

Why is bedding in new brake pads so important?

The correct bedding in of new brake pads is crucial for optimal braking performance and lifespan. It transfers a thin layer of pad material onto the brake disc, which provides maximum grip and even wear . Without bedding in, braking effectiveness may be reduced, and noises can occur.

My brake rubs after changing the pads, what can I do?

If the brake rubs, realign the brake caliper: Loosen the mounting screws slightly, pull the brake lever firmly, and re-tighten the screws while holding the lever. Also check if the brake disc is straight and the pads are sitting correctly..

Which brake pads are better for my bike: organic or sintered metal pads?

Organic pads often offer a better modulation and are quieter, but wear out faster and are less heat-resistant. Sintered metal pads (metallic pads) are more durable, heat-resistant, and often provide more consistent performance in wet conditions, but can be louder and cause more wear on the brake disc. The choice depends on your riding style and conditions.

What does it mean if my old brake pads are unevenly worn?

Uneven wear of the brake pads may indicate issues with the brake pistons, for example, that one piston is stiff or sticking. It may also be a sign of a misaligned brake caliper . This should be checked and corrected before installing new pads.

How much does it cost to have the brake pads changed at a workshop?

The cost for a professional brake pad change in a bicycle workshop usually ranges between 20 and 50 euros per brake, plus material costs for the new pads. Prices may vary depending on the workshop and region.

Regular inspection and timely replacement of disc brake pads are crucial to ensure up to 50% higher braking performance compared to heavily worn pads and significantly increase safety while riding..

Changing disc brake pads can often be done by yourself with the right instructions and care. Paying attention to details such as cleaning the brake caliper and correct alignment can extend the lifespan of the new pads by up to 30% and prevent consequential damage.

Das Thorough bedding in of new pads is an essential step, that optimizes braking performance and reduces noise development. Invest in high-quality tools and compatible replacement parts, to ensure reliable braking function in the long term.Learn everything about the right timing, necessary tools, and correct procedure when changing disc brake pads. Avoid mistakes and ensure maximum safety!

Properly functioning brakes are essential for your safety. This guide shows you how to change your disc brake pads yourself. Still need assistance with complex drive solutions? Contact us at ATEK Drive Solutions!

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Understand the basics of bicycle disc brake maintenance

The foundation for your safety: Regular brake inspection

Failing brakes on a descent pose a significant risk. Regular maintenance of disc brakes is essential for the safety and longevity of the bicycle. A quick monthly inspection helps to identify problems early on, including the need for a replacement of the brake pads on the disc brakes.. All about brake pads can be found here.

Why changing the pads is so crucial

Worn brake pads can reduce braking performance by up to 50% and damage brake discs. Timely replacement avoids consequential damage and maintains control. A longer brake lever travel is a typical sign. Tips on cleaning disc brakes are available here.

DIY or workshop? An assessment

Das Changing disc brake pads can often be done by yourself with guidance and care. Realistically assess your technical skills; if in doubt, the specialized workshop (approximately 30-60 minutes of labor) is the safer option, as improper assembly when renewing the brake pads poses risks.Recognize the optimal time for changing the brake pads

Identify audible and tactile warning signals

Metallic scraping or grinding sounds when braking are warning signals that indicate it is time to change the brake pads of your disc brakes.. Such noises often indicate completely worn pads where metal rubs against metal. A longer braking distance or pulsating brake lever are also indicators for a necessary pad replacement. Information on the brake disc itself can be found here.

The magic threshold: Visual inspection of pad thickness

As a general rule: The pad thickness should be at least 1.5 millimeters (without backing plate) at the thinnest point before a change of brake pads is required. Manufacturers like Shimano or SRAM specify specific minimum dimensions. A visual inspection, e.g., every 500 km, is advisable to not miss the point for the Changing disc brake pads replacement.

Mileage as a guideline – with caution

Indications regarding the lifespan of 3,000 to 5,000 kilometers are only guidelines for the replacement of brake pads.. Riding style, terrain, and weather significantly influence wear. A mountain biker in alpine use will have to change their disc brake pads more frequently than a city rider.Equip yourself with the right tools and materials

The basic equipment for changing pads

is essential for the Changing disc brake pads change. A set of Allen keys (often 2.5mm, 3mm, 4mm, 5mm) is required. High-quality tools prevent damage to screw heads, which can make changing more difficult. A brake piston return tool is helpful.

  • Necessary Allen keys (e.g., 2.5mm, 3mm, 4mm, 5mm).
  • High-quality tools to avoid screw damage.
  • Brake piston return tool for easily retracting the pistons.
  • Torque wrench for correct torque (e.g., 5-7 Nm).
  • Special brake cleaner for cleaning.
  • Compatible brake pads (check model number).
  • Suitable pad type: organic or sintered metal.
  • Clean cloth for cleaning tasks.

Special tools that make a difference

Special tools are not mandatory but significantly ease the work in changing brake pads. A torque wrench (e.g., from Wera, Park Tool) ensures the correct torque (often 5-7 Nm for brake caliper screws) and prevents damage. Ein Drehmomentschlüssel (z.B. von Wera, Park Tool) sichert das korrekte Anzugsmoment (oft 5-7 Nm für Bremssattelschrauben) und vermeidet Schäden. Special brake cleaner is ideal for cleaning.

The right material: Compatibility is key

Ensure that the brake pads are compatible with your braking system (model number on the brake caliper) when selecting new pads for your disc brakes. Organic pads offer good modulation and low noise development; sintered metal pads are more heat-resistant and durable (e.g., from SwissStop). A clean cloth should be ready.Changing disc brake pads: Step-by-step guide

Optimal preparation for a smooth workflow

Ideally, place the bicycle on a workstand and have tools and new pads ready. Good preparation is key if you want to successfully Changing disc brake pads change them. Photograph the installation position of the old pads and the retaining clip before disassembly for reference. When removing the rear wheel with a derailleur, shift to the smallest sprocket.

Dismantling the old brake pads

Remove the retaining pin or retaining screw of the pads. Remove old pads along with the spring clip from the brake caliper. Note: Keep the old spring clip and pin/screw, as they may be missing with new pads, which would unnecessarily complicate the brake pad replacement process on disc brakes. Carefully and straightly press back the brake piston with a piston rewind tool or a wide plastic lever without jamming it.

Cleaning and installation of the new pads

Thoroughly clean the inside of the brake caliper with brake cleaner and a cloth/toothbrush before inserting the new brake pads. Pay special attention to the visible sides of the brake pistons where dirt accumulates. Insert new pads with (new) spring clip as a package (pay attention to L/R markings). Secure the pads with a pin/screw (observe torque!). Install the wheel. More on adjusting disc brakes.

Final work and the important break-in

Actuate the brake lever forcefully several times until a firm pressure point is noticeable. Check the wheel arch. Proper break-in is crucial for the performance and lifespan of the pads after you have changed the disc brake pads. For this, accelerate to 20-30 km/h about 15-20 times and progressively brake hard almost to a stop without locking the wheel. Avoid full braking to a stop during this phase.Confidently address common issues after changing the brake pads

If the brake is rubbing after the change

slight rubbing after the replacement of the brake pads on the disc brakes. is often temporary. If rubbing persists: Align the brake caliper: Slightly loosen the mounting screws, pull the brake lever firmly, tighten the screws while holding the lever. Repeat the process if necessary 2-3 times. A warped brake disc can also be the cause.

  1. Align the brake caliper: Loosen screws, pull the brake lever, tighten screws to eliminate rubbing.
  2. Check for a warped brake disc as the cause of rubbing noise.
  3. If feeling spongy: suspect air in the system and bleed the brake.
  4. Ensure that the pads have been correctly broken in to achieve full performance.
  5. Check pads and discs for contamination (oil/grease) and clean or replace if necessary.
  6. Examine old pads for uneven wear, which may indicate sticking pistons.

Spongy brake feel – is there air in the system?

A soft, spongy brake lever with an undefined pressure point after the change of the brake padsoften indicates air in the hydraulic system, especially if the wheel was upside down. The brake must then be bled (requires practice). Bleeding kits cost about 20-40 Euros.

Insufficient braking performance despite new pads

In case of insufficient braking performance despite new pads, that is after you have changed the disc brake pads : Check whether the pads have been correctly broken in (essential for performance). Other causes: contaminated pads/discs (oil, grease). Clean the disc, if necessary, change the brake pads again. Analyze the wear pattern of the old pads (uneven wear can indicate sticking pistons).Additional pro tips for lasting safety of your disc brakes

Do not underestimate the importance of brake fluid

Brake fluid is hygroscopic (attracts water). Not only the regular replacement of brake pads on disc brakes is important, but also: Check and replace these according to the manufacturer’s recommendation (usually every 1-2 years) for consistent braking performance. Old fluid can degrade the pressure point. Useful brake accessories help with this.

Safety aspect: When in doubt, go to the professional

Despite instructions, it applies: In case of uncertainty or insurmountable problems, for example during Changing disc brake pads, consult a specialist workshop. A properly functioning brake is crucial for safety. Costs for professional replacement of brake pads: approximately 20-50 Euros per brake (excluding materials).

Quality in tools and parts pays off

Cheap tools can damage screws or lead to inaccurate results, especially when it comes to precise tasks like the renewal of disc brake pads . Solid tools and high-quality spare parts avoid long-term problems and ensure reliable function. A good torque wrench (under 100 Euros) is a worthwhile investment.

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