How to Bleed the Brakes on a 2015 Ducati Multistrada 1200
Shop parts for a 2015 Ducati Multistrada 1200 Motorcycle.
The 2015 Ducati Multistrada 1200 uses hydraulic disc brakes at both ends and is equipped with ABS. The front lever and rear pedal each push fluid through a closed hydraulic circuit, and a proper bleed refreshes that fluid and removes trapped air. Air makes a brake feel spongy; old fluid makes it fade under hard use. Work slowly, keep the reservoir from running dry, and stop if anything suggests air has reached the ABS unit.
When the Multistrada Needs a Brake Bleed
Bleed the brakes when the front lever or rear pedal feels soft, when the lever pulls closer to the grip than it used to, or when the fluid in either reservoir looks dark or cloudy. A bleed is also due after any work that opened the hydraulic system: new brake lines, caliper service, master cylinder work, or a fluid flush that was interrupted. Even without symptoms, brake fluid absorbs moisture over time. Moisture lowers the fluid’s boiling point, so hard use can create vapor in the system and cause fade. Many riders refresh brake fluid on a regular schedule for that reason alone.
Tools and Supplies to Have Ready
- Fresh brake fluid of the type marked on the master cylinder reservoir cap, from a sealed container.
- A box-end wrench that fits the bleeder valve.
- Clear tubing that fits snugly over the bleeder valve.
- A small catch bottle for used fluid.
- Rags or shop towels, plus a syringe or turkey baster for removing old fluid from the reservoir.
- A screwdriver or driver that fits the reservoir cap screws.
- Optional: a one-way check-valve bleeder or vacuum bleeder, which can make a one-person job easier.
Use fresh fluid, and keep the cap on the container when you are not pouring. Brake fluid is hard on paint and plastic, so have rags within reach before you open anything.
Set Up the Bike and Protect the Finish
Support the 2015 Multistrada 1200 securely upright on a stand. Turn the handlebars so the front master cylinder reservoir sits level before you remove the cap; a tilted reservoir can spill fluid as soon as the cover comes off. Cover the painted bodywork, the plastic around the reservoir, and the instrument area with rags. Brake fluid damages paint and plastic on contact, so wipe up any spill immediately and rinse the area with water. Keep used fluid in a sealed container for proper disposal.
Bleeding the Front and Rear Hydraulic Circuits
Bleed the front and rear circuits separately. If your bike has two front calipers, bleed each one in turn, starting with the caliper farthest from its master cylinder. The steps below apply to each circuit.
- Remove the reservoir cap and diaphragm. Use the syringe or turkey baster to draw most of the old fluid out of the reservoir, but do not let the reservoir run dry.
- Refill the reservoir with fresh fluid of the type marked on the cap. Leave enough air space for the diaphragm, but keep the level well above the lower mark.
- Push the clear tubing onto the bleeder valve and route the other end into the catch bottle. The tubing should fit snugly so air cannot sneak in around it.
- Fit the box-end wrench onto the bleeder valve. Keep the wrench in place for the whole procedure.
- Squeeze and hold the front lever, or press and hold the rear pedal. Hold steady pressure while you open the bleeder.
- Open the bleeder about a quarter turn. Fluid and air will move through the tube. Close the bleeder before you release the lever or pedal.
- Release the lever or pedal, then repeat the squeeze-hold-open-close-release cycle. Check the reservoir level often and top it off before it gets low.
- Continue until the fluid coming through the tube is fresh, clean, and free of bubbles. Do not judge by color alone; watch for the last small bubbles to stop.
- If the bike has two front calipers, repeat the cycle on the second caliper, keeping the reservoir topped off. Then move to the rear circuit and repeat the same steps at the rear caliper.
- When each circuit runs clean, close the bleeder snugly. Do not overtighten it; snug is enough to seal, and excessive force can damage the valve.
If the reservoir runs dry at any point, air has entered the system. Refill it and bleed again, but if the bike has ABS and the reservoir ran dry, or if the ABS unit or its lines were disconnected, the ABS unit may now hold air. A standard bleed at the calipers may not remove it. That situation calls for a shop with the appropriate diagnostic equipment.
Finishing Up and Checking Your Work
Fill the reservoir to the correct level marking, reinstall the diaphragm and cap, and wipe away any spilled fluid. Check the bleeder valves and the banjo fittings at the master cylinder and caliper for leaks. A dry paper towel wiped around each fitting will show a weep quickly. Spin each wheel and confirm the brake is not dragging; a wheel that stops almost immediately after you spin it needs attention. Before riding normally, test the brakes at low speed in a safe area. The lever and pedal should feel firm and consistent, not spongy, and they should not slowly sink while you hold steady pressure.
Troubleshooting and When to Stop
If the lever or pedal will not firm up after several bleeding attempts, or if it firms only after you pump it, air is still in the system or fluid is bypassing internally. Persistent bubbles at the bleeder usually mean air is being drawn in around the tubing or the bleeder threads; reseat the tubing and try again. Fluid leaking from the master cylinder or caliper is a stop sign, not a bleed problem. And if you suspect air has entered the ABS unit, take it to a shop. A brake system that is firm, clean, and leak-free is the only result worth riding on.
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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.