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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
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REVIEW SNAPSHOT®

by PowerReviews
Shimano Zee BR-M640 Disc Brake
 
4.5

(based on 12 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Modulation (3)

Cons

    Best Uses

    • Downhill (3)
      • Was this a gift?:
      • No (12)

    Reviewed by 12 customers

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    Displaying reviews 1-10

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    5.0

    Love these brakes!!!

    By Jimmy S.

    from La Verne, CA

    Verified Buyer

    Pros

    • 4 Piston
    • Brakes
    • Downhill
    • Freeride
    • Shimano
    • Zee

    Cons

    • none

    Best Uses

    • Downhill
    • Freeride

    Comments about Shimano Zee BR-M640 Disc Brake:

    I bought these to replace Avid Code 5 brakes that came on my Kona Operator. These have a smoother lever pull and once broken in are very predictable and give me that added level of confidence. Unless you want to spend the extra to run Saint's, these are just as good IMO.

    • Was this a gift?:
    • No
     
    5.0

    Powerful

    By sanook

    from Fernie BC Canada

    Verified Buyer

    Pros

    • Modulation
    • Powerful

    Cons

    • Not light
    • Work Poor With Avid Rotor

    Best Uses

    • Everything

    Comments about Shimano Zee BR-M640 Disc Brake:

    great brakes for a great price. Unless you care about grams or something.

    • Was this a gift?:
    • No
     
    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 Zee BR-M640 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 Zee BR-M640 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 Zee BR-M640 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 Zee BR-M640 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 Zee BR-M640 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 Zee BR-M640 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 Zee BR-M640 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 Zee BR-M640 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

            Displaying reviews 1-10

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