How to Change Brake Pads on a 2017 KTM 350EXCF Dirt Bike

Shop parts for a 2017 KTM 350EXCF Dirt Bike.

Quick Brake System Overview

Most modern dirt bikes including the 2017 KTM 350EXCF use hydraulic disc brakes. Key components you'll touch during a pad change:

  • Brake lever or pedal and master cylinder – where you apply input.
  • Hydraulic brake line – transmits fluid pressure.
  • Brake caliper – houses pistons and pads.
  • Brake pads & backing plates – contact the rotor to slow the bike.
  • Brake rotor (disc) – steel wheel-mounted surface the pads clamp onto.

When you pull the lever or press the pedal, hydraulic pressure forces the caliper pistons to push the pads against the rotor, generating stopping force.

When to Replace Brake Pads on Your 2017 KTM 350EXCF

Replace pads when you see or feel any of the following:

  • Reduced braking power or longer stopping distances.
  • Squealing, scraping, or grinding noises coming from the brake area.
  • Excessive lever travel or pedal feel that requires more movement to stop.
  • Pad material worn thin — metal backing visible or less than a few millimeters of friction material.
  • Heat discoloration, heavy grooves, or blueing on the rotor suggesting overheating.

Inspect pads after muddy rides, long moto sessions, or any time braking feels off. The 350EXCF is a high-rev, light-weight enduro/motocross-category bike, so aggressive riding accelerates pad wear.

Tools & Prep

  • Basic metric socket or wrench set, pliers, and a flat screwdriver.
  • Clean rags, brake cleaner or isopropyl alcohol, and a small wire brush or toothbrush.
  • New brake pads sized for 2017 KTM 350EXCF and any replacement pins/clips if needed.
  • Bike stand to lift and stabilize the motorcycle.

Work in a clean, level area. Avoid getting oil or grease on pads or rotor. Leave the master cylinder capped and don't open the hydraulic system unless you're prepared to bleed brakes.

Step-by-Step: Changing the Front Brake Pads

Order and exact steps can vary by caliper design. This sequence fits most single- or two-piston calipers on the 2017 KTM 350EXCF category bikes.

  1. Support the bike securely on a stand so the front wheel hangs free or is easy to remove.
  2. If caliper clearance is tight, remove the front wheel first – loosen axle, remove axle, slide wheel out.
  3. Locate the pad retaining pin or clip on the caliper. Remove the external cotter, clip, or bolt that secures the pads.
  4. Slide the pads and any pad spring out of the caliper. Note orientation so new pads go in the same way.
  5. Inspect the rotor surface and measure thickness by eye – deep grooves, warping, or heavy scoring means attention. Light surface rust or glazing can often be cleaned.
  6. Check the caliper for debris, mud, or leaking fluid. Clean the pad pocket and piston faces with brake cleaner and a brush.
  7. Push the caliper piston(s) back into the bore slowly to make room for the new thicker pads. Use a flat screwdriver across the piston face or a dedicated piston tool; protect the piston surface with a rag to avoid damage.
  8. Install the new pad spring (if present) and slide the new pads into the caliper in the correct orientation. Ensure backing plates face outward toward the caliper body and friction material faces the rotor.
  9. Reinstall the retaining pin/clip and secure it to factory torque or a snug fit; don't overtighten small retaining hardware.
  10. Reinstall the wheel if removed. Tighten axle and pinch bolts to specified torque values typical for axle hardware – firm and secure.
  11. Sit on the bike or hold steady and pump the front brake lever several times until it firms up – this moves the pads into contact with the rotor and restores hydraulic pressure.
  12. Spin the wheel by hand, listen for rubbing, and check lever feel again. Make one short slow stop to verify function before riding normally.

Step-by-Step: Changing the Rear Brake Pads

  1. Lift the rear of the KTM 350EXCF so the rear wheel is free and stable.
  2. Remove the pad retaining pin or clip from the caliper. Slide old pads and any spring out.
  3. Clean caliper and piston area, push piston back into bore to accept new pads.
  4. Install new pads and secure retaining hardware. Reinstall wheel or ensure brake pedal and mounting bolts are tight.
  5. Pump the rear pedal several times until pedal resistance returns and check for proper engagement.

Helpful Inspection Tips While You're In There

  • Rotor condition – shallow scoring is normal; deep grooves or warped feel merit rotor service or replacement.
  • Look for brake fluid leaks around the caliper seal and bleed nipple; any seepage indicates service needed.
  • Check that sliding pins (on floating calipers) move freely after cleaning and light grease on the slider surfaces where appropriate.
  • Make sure pad retaining pins and clips are not bent or worn & replace them if they look compromised.
  • Remove mud and grit from the caliper bracket and pads area to prevent accelerated wear.

Bedding In New Pads

New pads need a short bedding routine so they mate to the rotor surface. Perform 8–12 controlled stops from moderate speed to walking pace, allowing the brakes to cool between repeated aggressive stops. Avoid heavy braking for the first few miles to let the friction material settle. This improves initial braking performance and reduces glazing.

Final Checks

  • Ensure lever and pedal feel are firm; no sponginess that would indicate trapped air.
  • Check torque on axle and caliper mounting bolts after the first ride.
  • Re-inspect pads and rotor after a short test ride for proper seating and heat signs.

Routine pad inspection and timely replacement keep your 2017 KTM 350EXCF safe and predictable on trail, track, or dual-sport outings. Properly installed and bedded pads restore the crisp, reliable braking you need for confident riding.

Related Shopping Categories

Shop Brake Pads for a 2017 KTM 350EXCF Dirt Bike.

Shop Brake Rotors for a 2017 KTM 350EXCF Dirt Bike.

Shop Brake Lines for a 2017 KTM 350EXCF Dirt Bike.

Shop Brake Bleeders for a 2017 KTM 350EXCF Dirt Bike.

Shop Brake Tools for a 2017 KTM 350EXCF 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.