How to Change Brake Pads on a 2018 Alta Redshift MX Dirt Bike

Shop parts for a 2018 Alta Redshift MX Dirt Bike.

Brake system overview

Most modern dirt bikes including the 2018 Alta Redshift MX use hydraulic disc brakes: a lever or pedal operates a master cylinder that pressurizes brake fluid through a hydraulic line to a caliper. The caliper squeezes brake pads against a steel rotor to slow the bike. Key components you'll touch during a pad change are the brake lever or pedal, master cylinder reservoir, hydraulic brake line, caliper, brake pads, pad retaining pin or clips, and the rotor.

When to replace brake pads & why it matters

  • Reduced braking power or longer stopping distances
  • Squealing, grinding, or metallic noises when braking
  • Excessive brake lever or pedal travel before engagement
  • Visible pad backing plate or pad material worn thin
  • Heat discoloration or deep scoring on the rotor

On a motocross-focused bike like the Redshift MX, consistent braking is critical for control coming into corners and for safety in technical sections. Inspect pads after muddy rides, heavy track sessions, or any time braking feels off.

Tools & prep

  • Socket set or wrench for axle & caliper bolts
  • Needle-nose pliers or punch for retaining pins/clips
  • Flat-head screwdriver or plastic pry tool
  • Wire brush or soft brush and brake cleaner
  • Shop rags and a small container for hardware
  • Bike stand to keep the wheel off the ground
  • New brake pads matched to the 2018 Alta Redshift MX

Step-by-step: Changing the brake pads

These steps assume basic mechanical skill and common garage tools. Order and details vary slightly depending on whether you're servicing the front or rear caliper.

  1. Prepare the bike: Work on a level surface. Support the bike securely on a stand so the wheel can spin freely and the bike won't tip.
  2. Access the caliper: Depending on the caliper design, you may remove the wheel for better access. On many Redshift MX setups the front caliper can be serviced with the wheel on, but removing the wheel often makes inspection easier.
  3. Remove retaining hardware: Locate the pad retaining pin or clip. Use pliers or a punch to remove the cotter-style clip or slide the pin out. Keep parts in a small container so nothing gets lost.
  4. Slide old pads out: Pull the pads straight out of the caliper. Note pad orientation and any shims so you can reinstall correctly. If pads are stuck, gently pry them free with a flat tool.
  5. Inspect rotor & caliper: Look for scoring, glazing, or heat marks on the rotor, and check the caliper for debris, mud, or leaking fluid. Clean with a brush and brake cleaner; do not oil any pad or rotor surfaces.
  6. Compress the caliper piston(s): With the pads removed, slowly push the piston(s) back into the caliper to make room for the new, thicker pads. Use a clean C-clamp or a flat block of wood and gentle force. Keep the master cylinder reservoir cap closed or covered to prevent spillage.
  7. Install new pads: Slide the new pads into the caliper the same way the old pads came out. Ensure any shims or wear indicators are positioned as before. Install the retaining pin or clip and secure it fully.
  8. Reinstall wheel (if removed): Put the wheel back and torque the axle and pinch bolts to fitment feel using proper technique. Make sure the rotor sits correctly between the pads and that the caliper bolts are tightened to a firm, secure torque.
  9. Restore hydraulic pressure: With the bike on the ground, pump the brake lever or pedal several times until it firms up and the pads contact the rotor. Check fluid level in the master cylinder and top off if necessary. Confirm no leaks are present.
  10. Final checks: Spin the wheel to ensure the rotor runs true and the pads don't drag excessively. Re-check hardware security after a short test ride.

Helpful inspection tips while you're in there

  • Check rotor thickness and look for deep grooves; mild surface rust or light scoring can be cleaned, but severe damage needs attention.
  • Inspect around the caliper for brake fluid leaks at piston seals or hose connections.
  • Ensure the caliper slides freely on its guide pins; frozen guides cause uneven pad wear.
  • Clean mud, grit, and compressed dirt from the caliper bracket and pad pocket to prevent binding.
  • Confirm retaining pin and clips are fully seated and not bent or worn.

Bedding in new brake pads

After installation, perform a controlled bedding routine to mate the pad and rotor surfaces. From low speed, do a series of 8-10 moderate stopsapply steady braking to about walking speed without locking the wheel. Follow with 4-6 harder stops from moderate speed, again avoiding lock-up. Allow components to cool between repeated hard stops. This creates even transfer layers for consistent bite and fade resistance.

Model notes & common setups

The 2018 Alta Redshift MX is a motocross-style bike and commonly uses a single or dual-piston caliper depending on front or rear application. Most modern dirt bikes including the Redshift MX use hydraulic disc brakes; design tweaks across years may change rotor diameter or caliper mount details, but the general pad-change routine above remains the same. If your Redshift MX uses a floating caliper or larger rotor for track use, expect slightly different hardware sizes and marginally more frequent inspections due to aggressive braking demands.

Wrap-up

Changing brake pads on a 2018 Alta Redshift MX is a straightforward garage job if you follow basic steps: support the bike, remove retaining hardware, replace and secure new pads, compress pistons carefully, and bed the pads with controlled stops. Regular inspection after muddy or hard rides keeps braking performance solid and helps you stay in control on the track or trail.

Related Shopping Categories

Shop Brake Pads for a 2018 Alta Redshift MX Dirt Bike.

Shop Brake Rotors for a 2018 Alta Redshift MX Dirt Bike.

Shop Brake Lines for a 2018 Alta Redshift MX Dirt Bike.

Shop Brake Bleeders for a 2018 Alta Redshift MX Dirt Bike.

Shop Brake Tools for a 2018 Alta Redshift MX Dirt Bike.

Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.