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Shimano M640 Zee 10 Speed Shift Lever

Item #: SL245A00
USD$25.99 SAVE 10% USD$28.99 msrp
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Shimano M640 Zee 10 Speed Shift Lever

Shimano M640 Zee Shift Lever

Zee is Shimano’s new line of Gravity-specific components, designed and priced for those of us who do not have multi-million dollar sponsors. Specifically designed as a rear-only lever for 1x10 drivetrains, the M640 Zee shifter features crisp, consistent Dyna-Sys shifts and 2-way release. The Zee shifter's ergonomics make for an extremely comfortable, intuitive setup for the best performance when ascending or descending. The lever body is built for hard wear and tough usage, to continue working even after impact. Paired up with a Zee or Saint rear derailleur, you will be equipped to tackle any trail, no matter how gnarly.

Features :

  • Dyna-Sys 10-speed shift lever, rear only (1x10 specific)
  • Rapid Fire Plus
  • 2-way release (upshifts actuate with thumb or index finger)
  • Textured Shifter Levers
  • Linear Shift Effort
  • Shimano Shift cable included
  • Shimano Part Number: ISLM640RA
4.6 / 5.0
50 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
31
18
0
1
0
Crispy!
I switched up from a 3X9 to a 1X10 and went with a Zee shifter/derailleur combo. It's definitely an improvement with the OneUp 40t cog.

PROS: Easy to Use, Durable
May 22, 2014
Location:
Cincinnati, OH
Good Shifter Poor Build Quality
I have used this shifter for 9 months and in that time I have had to open it up and work on the shifter twice for it to have normal operation. Initially out of the box the shifter worked great with a easy pull. after time the shift quality degraded becoming tough to actuate the downshifts. Additionally on two seperate occasions the level became lose and required adjustment. the second time damaged one of the springs in the shifter and rendered it unusable. I will be buying SLX or better shifters from now on. the deore mech it was connected too is running strong and has had zero issues in the same amount of time.

PROS: Cheap, Versatile, Easy to Use

CONS: Poor Quality, Weak, Bulky
January 12, 2016
Location:
Charlotte, NC
Great functionality
Great bang for your buck.

PROS: Smooth shifting, Lightweight
October 16, 2012
Location:
Bay Area, Ca
Nice!
Standard Jenson delivery of 3-5 days. No complaints!

PROS: Durable, Lightweight, Versatile, Easy to Use
May 25, 2016
Location:
Vancouver, WA
i would buy this product again
The Zee m640 is great.Great shifting on the gears no let downs at all.

PROS: Durable, Attractive Design, Great Price, Lightweight, Easy To Install
February 15, 2016
Location:
BROOKLYN, NY
Great Value
Great price for quality.

PROS: Price

CONS: None
March 5, 2016
Location:
Burt, MI
Great Value
Great shifter for a 1x setup. Fits on bars with Shimano brakes well. Nice index shifting
July 11, 2016
Location:
Buffalo, NY
m640 zee
Bought this to upgrade my drivetrain. This shifter is paired with Deore m615 medium cage der, it works awesome, shifts smooth as butter. I run a 1x10 setup with a narrow wide chainring. There's no indicator to let you know about what approximate gear you're in, but I think that it's a feature, for this burly shifter that's one less thing to worry about when you crash.

PROS: Easy to Use
August 27, 2014
Location:
Boise ID
Excellent product
Fast delivery from Jenson as always.

PROS: Durable, Versatile, Easy to Use

CONS: Heavy

BEST USES: Mountain Bikes, Gravity
November 17, 2016
Location:
LA
Great inexpensive shifter
Delivered quickly

PROS: Easy to Use, Durable, Versatile
September 5, 2016
Location:
Clark, NJ

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.