How to Change Mountain Bike Brake Pads in 5 Minutes (Every Brand)

Your brakes are cooked. Lever's at the bar, the grinding noise is scaring hikers, and you're staring at a 20-minute descent back to the parking lot. Good news: if you've got a spare set of pads at your car, you're five minutes from fixed. This works for Shimano, SRAM, Magura, Hope, TRP, and basically any hydraulic caliper on a mountain bike.

What You Need

• New brake pads that match your caliper (the hard part is having them with you)
• A flat-head screwdriver or tire lever
• Your multi-tool (2.5mm or 3mm Allen, depending on the brake)

A set of pads weighs next to nothing. Toss them in the bottom of your pack or leave a set in your car and forget about them until you need them. You'll be glad they're there.

The Process

1. Pull the wheel

Open the thru-axle and set the wheel somewhere the rotor won't pick up dirt or get stepped on. Rotor contamination is the last thing you need right now.

2. Remove the retaining pin

Every caliper holds pads in with some kind of pin or bolt. Look at the top (or bottom) of the caliper body. This is usually a hex head bolt and a circlip on the end. Remove the circle and unscrew the bolt. Don't loose the tiny pieces! If it's a cotter pin, straighten the end out and pull it out. Use your allen key through the eye for extra leverage.

Do not squeeze the brake lever while the pads are out. The pistons will push all the way out and you'll be doing a trail-side bleed instead of a trail-side pad swap. We've fixed this on the trail more times than we'd like to admit.

3. Push the pistons back

This is the step people forget. Your old pads were thin, so the pistons have pushed out to compensate. New pads are thicker and won't fit unless you reset the pistons.

Grab your flat-head screwdriver or a clean tire lever and gently push wedge the old brake pads open. This pushes the pistons back into the caliper body.

4. Slide the old pads out

With the bolt or pin removed, the pads pull out from the top or bottom of the caliper as one unit. They're connected by a spring clip. Note which way the friction material faces (inward, toward each other) before you pull them. On most calipers this is obvious but it's worth a glance.

5. Slide in the new pads

Connect them with the spring clip (usually pre-attached on new pads), drop them into the caliper the same way the old ones came out. Friction material faces inward. Re-insert the retaining pin or bolt. Make sure it's secure. This means putting the bolt or cotter pin back in.

6. Wheel back in, bed them in

Put the wheel in, spin it. The rotor should sit between the pads without dragging. If it rubs, loosen the caliper mounting bolts, hold the brake lever, and retighten. That centers the caliper over the rotor.

Bed-in matters. Before you point it downhill, do 10-15 moderate stops from a jogging pace. This transfers a layer of pad material onto the rotor and gives you consistent, full-power braking. Skip it and you'll get weak, grabby, inconsistent stopping, and you'll probably glaze the pads. Nobody wants to do another pad swap because they glazed the first set.

Common Mistakes

• Squeezing the lever with pads out. Already mentioned this but it bears repeating. The pistons pop out, you need to push them back, and if they come out too far you might need a full bleed. On the trail, that's game over.
• Touching the pad surface. Oils from your skin contaminate the friction material. Handle pads by the edges or the backing plate. If you do touch the surface, a light scuff with sandpaper and a wipe with isopropyl can sometimes save them.
• Skipping bed-in. Just do it. Ten stops. It takes two minutes and makes the difference between good brakes and brakes that make weird noises and barely work.
• Wrong pad shape. Shimano alone has 5+ pad shapes across their lineup. A pad that fits XT won't fit Saint. Always verify before you're standing on the side of a trail with the wrong pads in your hand.

Carry Spares

Seriously. A spare set of pads is the cheapest, lightest insurance you can carry. Find the right pads for your caliper in our brake pad finder.