How to Change Brake Pads on a 2007 GAS GAS EC 450F

Shop parts for a 2007 GAS GAS EC450F Dirt Bike.

Brake system overview & why it matters

The 2007 GAS GAS EC 450F uses a hydraulic disc brake setup common to modern dirt bikes: a lever or pedal actuates a master cylinder, hydraulic lines carry fluid to the brake caliper, and the caliper squeezes brake pads against a steel rotor to slow the bike. Strong, consistent braking is essential on an enduro/450cc motocross platform like the EC 450F because engine displacement and aggressive riding demand reliable stopping power for safety and control.

When to replace brake pads — symptoms to watch for

  • Reduced braking power or fading under load
  • Squealing, chirping, or a grinding noise when you apply the brake
  • Excessive lever or pedal travel before the bike slows
  • Visible pad material worn thin — backing plate visible or less than 1.5-2 mm of friction material
  • Heat discoloration or scoring on the rotor surface

Inspect pads after muddy rides, long sessions, or heavy braking runs. If you ride trails, enduro, or aggressive motocross, check the pads more often due to higher heat and contamination exposure.

Tools & supplies you'll need

  • Basic socket set and wrenches
  • Pliers or snap-ring tool (if caliper uses a retaining clip)
  • Flat screwdriver or small pry tool
  • Clean rag and brake cleaner
  • New brake pads designed for the 2007 GAS GAS EC 450F
  • Light grease for pins (stated for brake hardware) and a small C-clamp or piston compressor
  • Torque wrench for axle and caliper bolts

Preparations & safety setup

  • Work on a level surface with good lighting. Keep the area clean of mud and oil.
  • Secure the bike on a stand so the wheel is off the ground and stable.
  • Note rotor orientation and how pads sit in the caliper before you start so reassembly is straightforward.

Step-by-step — changing the pads

  1. Decide if the wheel needs removal. On many GAS GAS EC 450F caliper designs you can access the retaining pin with the wheel in place; on other setups removing the wheel makes pad removal and reinstallation easier. If you remove the wheel, loosen the axle and caliper fasteners first, then drop the axle and slide the wheel out.
  2. Remove the retaining pin or clip. Locate the pad retaining pin or spring clip on the caliper. Use pliers or a screwdriver to remove the clip and pull the pin out. Keep hardware together for reinstallation.
  3. Slide the old pads out. Pull the pad set from the caliper. Note pad orientation and any shims. If pads are stuck, gently pry using a flat screwdriver between the pad and caliper housing.
  4. Inspect rotor & caliper. Look for scoring, heat spots, or contamination on the rotor. Check caliper boots and fluid around piston seals for leaks. Clean visible dirt and grit with brake cleaner and a rag.
  5. Compress the caliper piston(s). Before installing new pads you must push the piston back into the caliper bore to make room for thicker pads. Remove the reservoir cap or cover to relieve pressure and avoid forcing fluid. Use a clean C-clamp or piston tool against the old pad surface or a block of wood to press the piston slowly and evenly. Watch fluid level in the master cylinder; remove excess fluid if necessary.
  6. Install the new pads. Fit any backing shims or anti-rattle material and slide the new pads into the caliper in the same orientation as the old ones. Ensure pad edges seat into the caliper grooves cleanly.
  7. Reinstall the retaining hardware. Insert the retaining pin and secure the clip or locking device. Confirm the pin is fully seated and clip engages correctly.
  8. Reinstall the wheel (if removed) and torque fasteners. Align the wheel and axle, tighten axle nut and pinch bolts to the correct torque, then torque caliper bolts per common practice for aluminum fasteners on dirt bikes. Spin the wheel to confirm the rotor spins freely without drag.
  9. Restore hydraulic pressure. Pump the brake lever or pedal several times until firm to move the pads into contact with the rotor and restore normal lever feel. Check master cylinder fluid level and top up if needed.
  10. Final checks. Ride at low speed and perform gentle stops to ensure proper engagement and to seat the pads against the rotor before normal riding.

Helpful inspection tips during replacement

  • Measure rotor thickness visually & by feel; deeply grooved or thinned rotors should be addressed even if pads are new.
  • Check for brake fluid seepage around the caliper pistons and hydraulic line fittings.
  • Confirm caliper slides or guides move freely; sticky slides can cause uneven pad wear.
  • Remove packed mud or debris from the caliper bracket and pad pockets; small rocks can score rotors.
  • Inspect retaining pins and clips for wear or corrosion and replace if damaged.

Bedding in new brake pads

Bedding in helps the pad and rotor surfaces mate for consistent braking. From a safe area accelerate to moderate speed and perform 6-8 gradual stops from around walking to cruising speed, allowing brakes to cool slightly between stops. Finish with a few firmer stops to build pad temperature gradually. Avoid repeated hard stops from high speed for the first few miles.

Notes for GAS GAS EC 450F owners

The 2007 GAS GAS EC 450F typically uses hydraulic disc brakes similar to other enduro and motocross bikes; no major generational rotor or caliper changes are widely known for this specific year, so parts and pad types are broadly available in common designs. Because the EC 450F is a 450cc enduro/motocross machine, expect higher heat generation under hard riding — choose pads rated for your riding style, and check them more often after intense sessions.

Following these steps keeps your braking sharp and predictable so you stay in control on technical trails, jumps, and hard braking zones.

Related Shopping Categories

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Shop Brake Tools for a 2007 GAS GAS EC450F 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.