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Shimano Zee BR-M640 Disc Brake

Item #: BR230C04
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USD$149.99 32% off USD$219.99 msrp
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Shimano M640 Zee Hydraulic Disc Brake I-Spec B

Shimano Zee in a new line of gravity components that comes at a friendlier price point than the Shimano Saint big brother. The new Zee hydraulic disc brakes feature a powerful four piston caliper and shorty style brake levers. The brakes come with Ice Technology brake pads that will help keep your brakes running cool even when the downhill course gets gnarly. Zee brakes have One-Way bleeding, for fast and easy maintenance.

  • I-spec B
  • I-spec "B" type is the newer version, for the older I-spec "A" type click here .
  • SERVO WAVE lever pivot
  • Shorty Levers
  • High rigidity ceramic pistons for heat insulation
  • Anti-slip dimpled lever blade
  • Radiation fin pad with new metallic compound to improve control and consistency
  • Super stiff high power 3-layer brake hose for a more consistent lever feel
  • One-Way bleed for easy and clean servicing
  • 4 piston caliper
  • Note: Rotor is not included

REVIEW SNAPSHOT®

by PowerReviews
Shimano M640 Zee Hydraulic Disc Brake
 
4.4

(based on 10 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

    Cons

      Best Uses

          • Was this a gift?:
          • No (10)

        Reviewed by 10 customers

        Sort by

        Displaying reviews 1-10

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        4.0

        ZEE BRAKES

        By Ivan G.

        from Rutherfordton, NC

        Verified Buyer

        Pros

        • Easy Installation
        • Firm Lever Feel
        • Good modulation
        • Good stopping power

        Cons

        • Tool Needed Reach Adjust

        Best Uses

        • Agressive Downhill
        • Enduro
        • Super-d

        Comments about Shimano M640 Zee Hydraulic Disc Brake:

        Very pleased with ease of installation. Was able to shorten the rear hose and rout it internally without the need re-bleed the brakes, after watching a quick how-to video from Shimano.

        I am 190lb very agressive XC racer, who dabbles in Enduro and Super-D style events on a 29er hardtail at the expert level.
        I was willing to give up a slight weight penalty over the XT's for the abundant quad piston power of downhill brakes. Maybe overkill for my application, but so far I love the worry free stopping power, and quiet operation.

        It did take a little time to get used to the power, as I found myself inadvertantly locking up a wheel from time to time as this was never really an option before coming from Magura MT-S.

        I also found myself wishing the ZEE's had the tool free reach adjust found on the more expensive models, as the pad engagement and lever travel seemed to change (reduce) during use becoming almost too firm during decents.

        • Was this a gift?:
        • No
         
        5.0

        All the power I need

        By Dan the Man

        from Logan, UT

        Verified Reviewer

        Pros

        • Easy To Install
        • Looks great
        • LOTS OF POWER
        • Plenty Of Cable
        • Smooth

        Cons

        • None so far

        Best Uses

        • all mountain

        Comments about Shimano M640 Zee Hydraulic Disc Brake:

        These brakes are awesome. They have plenty of stopping power, but are not sticky as I thought they might be. Easy to apply light, smooth breaking, but if you grab a handful hang on, because they will stop you VERY quickly.

        • Was this a gift?:
        • No
         
        4.0

        Great brake for the proce

        By Dizzy d

        from Plattsburgh, NY

        Verified Buyer

        Pros

        • feel
        • Function

        Cons

          Best Uses

          • DH

          Comments about Shimano M640 Zee Hydraulic Disc Brake:

          Work great and easy to install.

          • Was this a gift?:
          • No
           
          4.0

          True one finger braking but issue with p

          By BBomb

          from Vancouver, BC

          Verified Reviewer

          Pros

          • Easy Installation
          • one finger braking
          • Same Adapters As Hayes
          • Textured Levers Feel Good

          Cons

          • Cotter Pin Holding In Pad

          Best Uses

          • Downhill
          • Free Ride

          Comments about Shimano M640 Zee Hydraulic Disc Brake:

          I recently installed my Zee's on my Santa Cruz Bullit. As mine is an older frame I stayed with the 160mm (6") rotor on the rear and went with the 203 mm (8") rotor on the front. This was the same combo I was previously running and installation was a breeze because Hayes(old brakes) runs the same adapters as Shimano. Unfortunately, my frame is a medium and the 1000/1700 mm length hoses are probably cut for large frames so getting the houses shortened was necessary. Not the end of the world though because the "pre-bled" status from the factory is not the best bleed job (no offence shimano).

          Fast forward to my first day of downhill riding in Whistler, BC, Canada and as I'm bombing down Freight Train my back brake goes squishy. Fortunately it wasn't an uber technical section and I stopped myself on the front brake. Looked at the rear calliper to see the pads had fallen out! I've been riding BC trails since the very first RM Fusion, never once have I had a disc brake pad just fall out. Collected the pads from the trail and returned to the shop in Whistler where the cable shortening and bleed was done and they re-installed the pads. The mechanic told me that they had seen this a bit when using the threaded cotter pin provided by Shimano rather than the pinch pin, which you can bend the ends of to prevent them from backing out.

          Bottom line, there is no way for me to tell whether the tech was telling me the full truth and these threaded cotter pins are problematic or they just didn't install it properly after the bleed. In defence of the shop, it happened late in the day and it was wicked hot, conditions that support the theory that it's a design issue rather than sloppy mechanic work.

          Performance wise though...Awesome! A noticeable improvement from my Hayes Strokers.

          Happy Trails,

          • Was this a gift?:
          • No
           
          4.0

          Amazing

          By Ryan

          from Lake Forest, CA

          Verified Buyer

          Pros

            Cons

              Best Uses

                Comments about Shimano M640 Zee Hydraulic Disc Brake:

                After a long hard day at the bike park, these things never had any brake fade, never over heated, and never squealed like my last set of brakes. I mated these brakes with the Shimano Ice Tech rotors (203mm front and rear).

                • Was this a gift?:
                • No
                 
                4.0

                Excellent

                By movitas

                from Durango, CO

                Verified Buyer

                Pros

                • Braking Power
                • Modulation

                Cons

                • none

                Best Uses

                • Long Descents
                • Steep Descents

                Comments about Shimano M640 Zee Hydraulic Disc Brake:

                Unless you are frequently riding steep or long desecents, shimano XT's will do just fine, which I have owned prior. The Zees have more modulation, as well as braking power, which is only noticeable when you need it the most, on steep and/or long descents. They are awesome! Well worth the slight weight penalty.

                • Was this a gift?:
                • No
                 
                4.0

                zee rear brake

                By the cat

                from Israel

                Verified Buyer

                Pros

                • Easy To Install
                • Works Great

                Cons

                • Lever Adjustment

                Best Uses

                • On My Dh Bike

                Comments about Shimano M640 Zee Hydraulic Disc Brake:

                the tubing needed to be shortened and there for a bleed was needed , except for that --- great !!!!

                • Was this a gift?:
                • No
                 
                5.0

                Why would I want Saints?

                By cesalec

                from Chihuahua, Mexico

                Verified Buyer

                Pros

                • Lever Ergonomics
                • Lever Reach
                • Mineral Oil
                • Modulation
                • Power
                • price

                Cons

                • Paint scratches easily

                Best Uses

                • Downhill

                Comments about Shimano M640 Zee Hydraulic Disc Brake:

                Awesome break, it is a bit confusing Ispec-A and B, but other than that they are the same. They work awesome, and are not the price of the saints. Why would I ever need saints?

                Combines with Ice Tech rotors they work awesome in our hot and dry conditions.

                • Was this a gift?:
                • No
                 
                5.0

                Shimano Zee M640 brakes

                By Byte_me

                from South Florida

                Verified Buyer

                Pros

                • 4 Pistons Baby
                • Fantastic Modulation
                • Great Brake Feel
                • Levers Feel Great
                • Look Great Installed
                • Pull Hard Brake Hard
                • Pull Hat Brake Hard
                • Pull Light Brake Light
                • Super Controllable

                Cons

                • A little Heavy
                • Cables Are Long

                Best Uses

                • Trail riding

                Comments about Shimano M640 Zee Hydraulic Disc Brake:

                What else can be said? Get these brakes! Installed on a Niner RIP 9 size medium. Using them in the 180mm setup (brackets NOT included) and they are absolutely awesome brakes. Super controllable, the feel is also fantastic- pull hard, brake hard- pull light, brake light...

                No issues on a 29er full suspension- they simply are the best brakes in the price range- and look and feel like they should charge more!!

                Cables are a little long (even on a 29er) but that's really not a con...I have no complaints and they are quality brakes that make my trail rides in Florida more enjoyable!

                I get tons of compliments, all come from those with wimpy 2 piston caliper people!! :-)

                • Was this a gift?:
                • No
                 
                5.0

                GREAT BRAKES!

                By Shrecktacular

                from Miami, Florida

                Verified Reviewer

                Pros

                • one finger braking
                • Stops on a dime

                Cons

                • None so far

                Best Uses

                • Mountain biking

                Comments about Shimano M640 Zee Hydraulic Disc Brake:

                I received these as a replacement to a faulty brake on my DB Overdrive Pro - Shimano was great with warranty issue and gave me these great brakes that have not failed in last year. Thinking of builing up a FS- These would definately be in running for brakes purchase.

                • Was this a gift?:
                • No

                Displaying reviews 1-10

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