How to Change Brake Pads on a 2017 Alta Redshift MX Dirt Bike

Shop parts for a 2017 Alta Redshift MX Dirt Bike.

Why keeping the brakes fresh matters on the Alta Redshift MX

The 2017 Alta Redshift MX is an electric motocross bike that relies on hydraulic disc brakes like most modern dirt bikes. The brake caliper squeezes pads against a steel rotor to convert speed into stopping force. Worn pads reduce braking power, change lever feel, and increase stopping distance – all of which affect control on jumps, ruts, and hard braking zones. Routine pad checks are a simple, high-impact way to stay safe and keep lap times consistent.

Basic brake system components

  • Brake lever (or pedal for rear) and master cylinder – the rider input that pressurizes the system.
  • Hydraulic brake line – transmits fluid pressure to the caliper.
  • Brake caliper – houses pistons that push the pads.
  • Brake pads – friction material that contacts the rotor.
  • Brake rotor (disc) – steel disc mounted to the wheel.

Hydraulic pressure forces the caliper pistons to press the pads against the rotor, generating the friction that slows the bike.

When to replace pads – common symptoms

  • Reduced braking power or longer stopping distances.
  • Squealing, scraping, or grinding noises from the caliper area.
  • Excessive lever or pedal travel before braking force appears.
  • Visible pad backing plate or pad material worn thin.
  • Heat discoloration or scoring on the rotor surface.

Inspect pads after muddy rides, long MX sessions, or any harsh braking events. Replace pads if the friction material is thin or contaminated with oil/grease.

Tools & workspace

  • Basic hand tools: metric sockets/wrenches, pliers, screwdriver.
  • Needle-nose pliers or punch for retaining pin removal.
  • Flat pry tool or old brake pad to compress pistons.
  • Clean rags, isopropyl alcohol or brake cleaner, and a small container for hardware.
  • Bike stand to support the Redshift MX securely so wheels can turn freely.

Step-by-step – changing the brake pads

  1. Prepare the bike & workspace. Park the Alta Redshift MX on a stable stand with the wheels off the ground, engine off, and handlebars straight. Work in a clean, well-lit area.
  2. Inspect caliper layout. Many MX-style setups allow you to change pads with the wheel on; on others you may find it easier to remove the front or rear wheel. Decide based on access to the retaining pin and caliper bolts.
  3. Remove the retaining pin or clip. Locate the pad retaining pin or spring clip on the caliper. Use pliers or a punch to remove the pin/clip and set hardware aside in a container. Note orientation for reinstallation.
  4. Slide out the old pads. Pull the pads straight out of the caliper carrier. If they stick, gently pry them free with a flat tool. Inspect pad backing plates and any anti-rattle hardware.
  5. Inspect rotor & caliper. Look for scoring, heat spots, or excessive wear on the rotor. Clean the caliper, piston faces, and pad slots with brake cleaner or isopropyl alcohol to remove mud and grease.
  6. Compress the caliper piston(s). Before installing new pads, push the pistons back into the caliper bore to make room for thicker pads. Use a flat tool or old pad and apply steady pressure. Do this slowly to avoid damaging the piston seal. If resistance is very high, cycle the lever gently; avoid forcing fluid out of the reservoir.
  7. Install the new brake pads. Slide new pads into the caliper, confirming the friction face points to the rotor and any wear indicators are facing outward. Ensure pads seat against the piston faces and locate anti-rattle shims if provided.
  8. Reinstall retaining hardware. Replace the pin or clip in the exact orientation removed. Secure any locking clips or cotter pins so the pads cannot shift during use.
  9. Reinstall the wheel if removed. Refit axle and torque axle hardware to spec loosely by hand if you don't have a torque wrench, then tighten according to feel – ensure the wheel spins freely without rubbing and the brake caliper aligns properly.
  10. Restore hydraulic pressure. Pump the brake lever or pedal several times until you get firm resistance and the lever returns to normal travel. This seats the pads against the rotor and clears any air pockets in the immediate caliper area. Check lever feel again and top up the fluid reservoir if level is low.
  11. Final check ride. Perform a short, controlled ride with progressive stops to confirm braking performance before returning to hard riding.

Inspection tips while you have the caliper open

  • Check rotor thickness and look for deep grooves or warping.
  • Look for any brake fluid leaks around the caliper seals, banjo bolts, or master cylinder.
  • Ensure caliper slides and carrier bolts move freely; clean and lightly lubricate slide pins if present.
  • Remove mud and debris from the caliper bracket and pad slots to prevent uneven wear.
  • Confirm retaining pins, clips, and pad springs are intact and correctly positioned.

Bedding in new pads

Bedding pads helps transfer a thin layer of friction material to the rotor for consistent stopping. From a safe area, accelerate to a moderate speed and perform 8–10 controlled stops from about 20–30 mph, letting the bike slow without coming to a full stop each time. Allow the brakes to cool between aggressive stops. Avoid sliding or locking the wheel during bedding.

Notes on the Redshift MX braking setup

The Alta Redshift MX is in the motocross/competition category and typically sees high-frequency braking demands on jumps and tight sections, so maintain pads more aggressively than on casual trail bikes. Like most modern dirt bikes it uses hydraulic disc brakes; if your bike has had subtle generational rotor or caliper changes since 2017 you may notice differences in bolt sizes or pin styles – adapt tools and step order accordingly.

Wrap-up

Changing brake pads on your 2017 Alta Redshift MX is a straightforward garage task when you follow methodical steps: prepare, remove retaining hardware, replace pads, compress pistons, reinstall hardware, and bed the pads. Regular inspections after muddy or hard sessions and prompt pad replacement keep braking crisp and predictable so you can ride confidently.

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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.