This isn't a step by step master cylinder rebuild. You'll want a shop manual for that. These photos are hopefully intersting if you are doing a rebuild, or trying to figure out if it is time to rebuild. With the cover, boot, and brake lever removed, you can see corrosion around the master cylinder piston. This has been leaking for a long time, and is long over due for a rebuild.
I should have peeked up under here long ago. There should not be brake fluid in the dust cover. This wasn't a "leak" per se, but things were long past needing a repair. The piston won't come out until you remove the retaining screw on the side of the master cylinder. Carefully cover everything especially painted surfaces like the tank and engine cylinder below and around the master cylinder.
Brake fluid is very corrosive to paint, and I'm pretty sure it's a carcinogen.
If your master cylinder looks like this, you probably need a rebuild. The piston still moved fairly smooth, so I had plenty of braking force. The problem that we found was that the brake calipers weren't fully releasing.
See the clogged return port in the next photo. In the left side left is towards the rear of the bike of the master cylinder reservoir, notice the crystals that have built up. These have completely clogged the fluid return port.
The fluid return port is a tiny hole in the middle of the larger, left rear depression. I cleaned mine out with a single strand guitar string. You can see the depression, but the return port is not visible. You can see it in the next photo. Brake fluid not returning when the brake lever is released has been known to expand due to heat during driving, and lock the front brake.
Anton Largiader our excellent local BMW motorcycle mechanic noticed that my brake lever had far too little travel.Rear Master Cylinder Reservoir Diaphragm. Replaces OEM Front Master Cylinder Reservoir Diaphragm. Front Brake Caliper Piston - Order the Quantity you Require. These are the Smaller front pistons, please confirm you need these Brake Caliper Bleed Screw. Replaces OEM Please Note: This item has various Applications, it is used on either the front brake caliper, Rear brake caliper or clutch slave cylinder.
Confirm it is used for the application you require before ordering. Sold Each, Order the Quantity you Require. Includes One Bolt with One Nut.
Includes both the clutch and brake levers and both perches brackets. Levers do not include mirror attachments points. Banjo Bolt M10 x 1. Includes lever, banjo bolt, banjo washers and brake switch.
Quality low profile design with 10 x 1. Left hand thread mirror mount. Recommended for Single disk systems. M10 x 1. Has 2X 8mm threaded mounting holes at 49mm center to center.Peformance, Ergonomics, Design. No more compromises! The overall performance of the HC3 exceeds even the highest requirements. The motorcycle season is almost over BUT: We still want to make you smile, which is why we are giving away an end of season gift!
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MAGURA 20mm Repair Kit for Brake Master Cylinder for R1100RT
Tech Center More information and advice about our products.Initially developed for the racetrack, motorcycle enthusiasts and professionals alike. The HCT-structure reduces the internal friction thus improving the performance of the brake and clutch.
The HCT-hydraulic system uses a slotted piston with a stationary primary seal and is fully compatible with all brake systems, with or without ABS Stand In addition, damage is avoided in the case of ABS kickbacks. Customer-friendly service is essential, we make sure that our products are of the highest quality and we are always willing to assist you if you need any help during maintenance. SERVICE Customer-friendly service is essential, we make sure that our products are of the highest quality and we are always willing to assist you if you need any help during maintenance.
The HC1 is a compactly-designed raidal fitment that conducts precise braking and clutch operations with strong, direct pressure point and performance. You will feel the difference and more importantly, feel more in control. The HC1 is designed with the pump's diagonal inclination, ABS-compatible, cutting-edge technology, sophisticated ergoniomis and Magura craftsmanship.
Best of all, the HC1 is very easy to mount! Stop Brake light modulator or flasher relay m. Flash Load independent flasher relay m. Relay Standard relay 12V 20A m. Switch Mini Push buttons for handlebars m. Switch Push buttons for handlebars m. Grip CNC machined aluminum grips m. Blaze Cone Handlebar end turn signal m. Blaze Disc Handlebar end turn signal m. Blaze Ice Bolt on turn signal m. Blaze Pin Extremely small and bright turn signal m.
Blaze Cone Handlebar end turn signals m. Ask about our three discount levels and how it can increase your return. Apply to be a Dealer Dealer Benefits Profit from our partnership. Phone: Fax: Home Brakes Master Cylinder. Master Cylinder. Page You're currently reading page 1 Page 2 Page Next. Show Part: M Add to Cart.
Allow cookies Decline. New customer? Sign up now Forgot your password? For the large number of motorcycles which are still in active service with the brake master, Magura are offering a 20mm repair kit which contains all of the parts required to completely rebuild the brake master cylinder.
It is recommended following many years and kilometers of active service to completely clean the master and to renew all of the sealing elements to ensure that the brake functionality remains at the highest level for the future use of the motorcycle. The kit contains the following components: - a new piston with primary and secondary seals and a new return spring - a piston protective bellows - a reservoir bellows - a new gasket washer for the piston retaining bolt - a small amount of silicone based brake paste - detailed repair instruction in 4 European languages English, German, French, Italian R RT - VAT will be deducted after entering the address!
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Magura Master Cylinder Rebuild Kits
Ratings Rating: The average rating of this product is 5 of 5: after 4 Ratings Andrej wrote Great product, great quality, quick delivery. My master brake cylinder is as good as New: Graham wrote I cannot fault this item due to its quality. I have bought three over the past two years and the quality of this is far superior with a stronger return spring and included grease.
If I was to criticise I would ask for a simple arrow on the papers to show which way to insert the piston. I had my fingers crossed but it worked well and after 3 years my brakes are working VAT plus shipping. Show details. VAT plus shipping inkl.For the large number of motorcycles which are still in active service with the brake master, Magura are offering a 20mm repair kit which contains all of the parts required to completely rebuild the brake master cylinder. It is recommended following many years and kilometers of active service to completely clean the master and to renew all of the sealing elements to ensure that the brake functionality remains at the highest level for the future use of the motorcycle.
The kit contains the following components: - a new piston with primary and secondary seals and a new return spring - a piston protective bellows - a reservoir bellows - a new gasket washer for the piston retaining bolt - a small amount of silicone based brake paste - detailed repair instruction in 4 European languages English, German, French, Italian.
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