Shimano ZEE FC-M640 68/73 mm Crankset

Item number: 31981
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Shimano ZEE FC-M640 68/73 mm Crankset - black/170.0 mm 36 tooth
Shimano ZEE FC-M640 68/73 mm Crankset - black/170.0 mm 36 tooth
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Shimano ZEE crankset FC-M640 - for 68 and 73 mm bottom bracket widths


The Shimano ZEE FC-M640 crankset fits into bottom brackets with 68 or 73 mm shell widths. With its heavy-duty steel axle and steel pedal inserts, it is an indestructible partner for freeriders and downhill specialists. As a 4-arm single crank for Shimano 10-speed drivetrains, the FC-M640 comes with a 36-tooth chainring (104 mm bolt circle) and a rigid 2-piece design with two thick-walled aluminium crankarms.

Specifications:


Application: Freeride, Downhill
Compatibility: Shimano 1x10-speed
Chainring Mount: 104 mm bolt circle diameter, 4-arm

Technical Information:


Series: ZEE M640
Crankarm Material: aluminium
Chainring Material: aluminium
Axle Material: steel
Gradation: 36 teeth
Crankarm Length: 165.0 mm, 170.0 mm, 175.0 mm
Chainline: 50.4 mm
Q-Factor: 174.7 mm
Compatible BSA Shell Width: 68 mm, 73 mm
Bottom Bracket: SM-BB52 Hollowtech II (SM-BB71-41A Pressfit optional)
Recommended Chain: HG-X 10-speed (e.g. CN-HG95)

Features:


- strong, thick-walled 2-piece crankarm
- resilient steel axle
- steel pedal insert
- painted crankarms, anodised chainrings
- stainless steel chainring bolts
- compatible with Press-Fit bottom brackets
- for 135 mm and 142 mm over locknut dimensions
- not incl. chain guard

Technology:


2-Piece
Integration of crankarm and inner bearing. Increased rigidity with a lighter weight. The axle bearings are far apart: the rigidity increases and the strength of the biker is effectively transferred. Precision bearing: low maintenance effort and simplified mount.

Factory Numbers:


165.0 mm 36 tooth: E-FCM640AA6X
170.0 mm 36 tooth: E-FCM640CA6X
175.0 mm 36 tooth: E-FCM640EA6X

Contents:


- 1 x Shimano ZEE FC-M640 crankset (36 tooth)
- 1 x Shimano bottom bracket
- 1 x crank bolt
- 3 x bottom bracket spacers for 68/73 bottom bracket shells


Gewicht:


-black / 175.0 mm 36 tooth : 817 g (ohne Innenlager)

Models:

in stock 2 to 7 days up to 10 days up to 20 days
  • black/170.0 mm 36 tooth
    78.14€
  • black/175.0 mm 36 tooth
    78.14€
  • black/165.0 mm 36 tooth
    84.03€

Customer Reviews (10)

4.9

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Customer Reviews (10)

4.9/5.0
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by Kim L.  on 24.04.2017

Very good cranks and BB! I've used them for for years now and had zero issues! These are on my Surly 1x1 singlespeed all year round commuter. Zero maintenance needed. I have not even changed the chainring.

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