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    Shimano Zee M640 10 Spd Crankset - Black Black 165mm - 36t - 104mm

Shimano

Shimano Zee M640 10 Spd Crankset - Black

Shimano Zee M640 10 Spd Crankset - Black

Regular price $145.00
Sale price $145.00
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Product ID: GM102119-163

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Description

Shimano Zee M640 10 Speed Crankset

Durable, reinforced crankset - the thick wall aluminum construction on the Zee two piece cranks and reinforced steel axle translate to additional confidence on the trail.

With an axle 30% stronger than comparable trail cranks and smooth running, accurately aligned chain wheels, the Zee crank will perform reliably - run after run. The crank arm features outboard bearings and steel pedal inserts.

Shimano introduces Zee, a new line of gravity components that are an ideal starting point for aggressive riders and racers. Zee is the gateway gravity component line that allows riders to get on board with Shimano’s gravity program and experience premium new component technologies at a price they can afford.

Please note, external Hollowtech II Bottom Bracket is included.

Features

Features:

  • Two piece construction using the tried and tested Hollow Tech II system, the right-hand crank arm forms one unit with the axle
  • Solid crank arms for increased stiffness and strength
  • Steel axle further increases stiffness and durability
  • 68-73mm BB fitment

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Ratings & Reviews

Overall rating: 4.9 / 5 from 10 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["quality","shipping","price","cranks","chainring","crankset","bearings","spindle","terrain","guide","install"].

Review highlights

Reviews

Excellent quality cranks for a

"Excellent quality cranks for a great price. Cambria shipped them to me quickly, which was great because I installed them the night they arrived and rode them the next day. These cranks are everything I want out of a mountain bike crank. 104 BCD chainring interface with a 24mm steel spindle. Available in 165mm and 170mm lengths, and includes a chainring and quality Shimano BSA threaded bottom bracket. Also includes spacers with the external bottom bracket so it can be installed on 68mm or 73mm bottom bracket shells. Be aware these are a 1X crank, meaning there is only room to mount a single chainring. Not really an issue for most people, but still worth mentioning. One thing I really like about Shimano cranks is how the non-drive side crank is held on with pinch bolts, which makes them easy to install and preload compared to other designs. Like Saint cranks, these have a heavy duty steel spindle that is thicker than what is found on SLX and XT cranks I’ve seen. The included chainring isn’t narrow-wide, but with a good clutched derailleur and a minimal top guide I still haven’t thrown a chain riding fast in rocky terrain all season long. The great thing about the 104 BCD chainring interface is that there’s a ton of options for replacement chainrings, many of which are quite affordable. I plan to replace the chainring with a steel narrow-wide one, if I ever manage to wear out the one that came with the cranks. It still looks new after a few hundred miles of riding. The 24mm spindle means larger diameter bottom bracket bearings compared to 30mm spindle cranks when you have a threaded BSA bottom bracket. You guessed it, larger bearings last longer - to the point that I’ve given up on using 30mm spindle cranks in frames with threaded bottom brackets because the tiny bearings wear out ridiculously fast. The Zee 24mm steel spindle is plenty strong and stiff. I weigh around 230 pounds geared up and ride rocky terrain with big drops in the Pikes Peak region. I bought the 165mm version and have noticed the improved pedaling clearance and reduced number of rock strikes in comparison to the 175mm cranks which they replaced. I was also able to fit a longer dropper on my frame. The pedaling height is 10mm taller than it was when I had 175mm cranks, but the seat is lower when the post is down - and that is a real improvement when descending steep terrain. I have a set of Saint cranks on another bike, and these Zee cranks feel just as stiff to me. I’m not gentle on parts. I hope Shimano keeps on making these because they are extremely strong and durable, and they are one of the last cranks available, along with Saint, that use inexpensive 104 BCD chainrings rather than one of the many new proprietary and more expensive mounting standards."

Tom R. (5/5)

Great product for the price.

"Great product for the price. One thing I would have liked is a narrow wide chainring but it has given me no problems."

Chad C. (5/5)

Quality

"Bought for a polo bike, haven't installed yet but received quickly and in good condition! Looking forward to shedding on this thing. Always happy to give a store my money when it isn't Amazon."

Diego A. (5/5)

So far so good

"Comes with a Shimano hollow bb. Easy installation. I haven’t given it a real test ride yet, but it seems like it will do the job."

William E. (5/5)

Great product, even better price!

"I bought this wanting to try a shorter crank size. The quality is excellent and feel is just as good. The bottom bracket comes with it and the bearings are really smooth. Easy installation and a solid feeling crankset."

Kevin S. (5/5)

The good old days of cranks.

"All cranks other than xc should have steel pedal inserts! Seems like most of the stuff out there is too-hollow-tech. Saint or Zee cranks have yet to be beat, and still use an industry (not brand specific) standard for chainring mount."

Elias H. (4/5)

Solid crankset

"I picked these up to refresh my Planet X Pitbull for pump track. I've been using Shimano parts for my drivetrains over the past 20 years. I have full confidence with this crankset."

Cerna (5/5)

Great crankset for a Retro MTB 1x10 conversion

"Needed a 1x10 crankset and a new BB for a project bike. Cambria came thru with the great quality and great price. Havent spent much time riding yet, but the cranks and BB both are of the expected Shimano quality. Easy enough install and adjustments."

Cody L. (5/5)

Fast fast fast

"Very serviceable and product faithful to description. Great deal."

Alberto S. (5/5)

Shimano Zee cranks and BB

"Havent put the cranks and BB on yet. But i know they will be great"

Dale K. (5/5)

Q&A

Overall rating: 4.9 / 5 from 10 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["quality","shipping","price","cranks","chainring","crankset","bearings","spindle","terrain","guide","install"].

Review highlights

Reviews

Excellent quality cranks for a

"Excellent quality cranks for a great price. Cambria shipped them to me quickly, which was great because I installed them the night they arrived and rode them the next day. These cranks are everything I want out of a mountain bike crank. 104 BCD chainring interface with a 24mm steel spindle. Available in 165mm and 170mm lengths, and includes a chainring and quality Shimano BSA threaded bottom bracket. Also includes spacers with the external bottom bracket so it can be installed on 68mm or 73mm bottom bracket shells. Be aware these are a 1X crank, meaning there is only room to mount a single chainring. Not really an issue for most people, but still worth mentioning. One thing I really like about Shimano cranks is how the non-drive side crank is held on with pinch bolts, which makes them easy to install and preload compared to other designs. Like Saint cranks, these have a heavy duty steel spindle that is thicker than what is found on SLX and XT cranks I’ve seen. The included chainring isn’t narrow-wide, but with a good clutched derailleur and a minimal top guide I still haven’t thrown a chain riding fast in rocky terrain all season long. The great thing about the 104 BCD chainring interface is that there’s a ton of options for replacement chainrings, many of which are quite affordable. I plan to replace the chainring with a steel narrow-wide one, if I ever manage to wear out the one that came with the cranks. It still looks new after a few hundred miles of riding. The 24mm spindle means larger diameter bottom bracket bearings compared to 30mm spindle cranks when you have a threaded BSA bottom bracket. You guessed it, larger bearings last longer - to the point that I’ve given up on using 30mm spindle cranks in frames with threaded bottom brackets because the tiny bearings wear out ridiculously fast. The Zee 24mm steel spindle is plenty strong and stiff. I weigh around 230 pounds geared up and ride rocky terrain with big drops in the Pikes Peak region. I bought the 165mm version and have noticed the improved pedaling clearance and reduced number of rock strikes in comparison to the 175mm cranks which they replaced. I was also able to fit a longer dropper on my frame. The pedaling height is 10mm taller than it was when I had 175mm cranks, but the seat is lower when the post is down - and that is a real improvement when descending steep terrain. I have a set of Saint cranks on another bike, and these Zee cranks feel just as stiff to me. I’m not gentle on parts. I hope Shimano keeps on making these because they are extremely strong and durable, and they are one of the last cranks available, along with Saint, that use inexpensive 104 BCD chainrings rather than one of the many new proprietary and more expensive mounting standards."

Tom R. (5/5)

Great product for the price.

"Great product for the price. One thing I would have liked is a narrow wide chainring but it has given me no problems."

Chad C. (5/5)

Quality

"Bought for a polo bike, haven't installed yet but received quickly and in good condition! Looking forward to shedding on this thing. Always happy to give a store my money when it isn't Amazon."

Diego A. (5/5)

So far so good

"Comes with a Shimano hollow bb. Easy installation. I haven’t given it a real test ride yet, but it seems like it will do the job."

William E. (5/5)

Great product, even better price!

"I bought this wanting to try a shorter crank size. The quality is excellent and feel is just as good. The bottom bracket comes with it and the bearings are really smooth. Easy installation and a solid feeling crankset."

Kevin S. (5/5)

The good old days of cranks.

"All cranks other than xc should have steel pedal inserts! Seems like most of the stuff out there is too-hollow-tech. Saint or Zee cranks have yet to be beat, and still use an industry (not brand specific) standard for chainring mount."

Elias H. (4/5)

Solid crankset

"I picked these up to refresh my Planet X Pitbull for pump track. I've been using Shimano parts for my drivetrains over the past 20 years. I have full confidence with this crankset."

Cerna (5/5)

Great crankset for a Retro MTB 1x10 conversion

"Needed a 1x10 crankset and a new BB for a project bike. Cambria came thru with the great quality and great price. Havent spent much time riding yet, but the cranks and BB both are of the expected Shimano quality. Easy enough install and adjustments."

Cody L. (5/5)

Fast fast fast

"Very serviceable and product faithful to description. Great deal."

Alberto S. (5/5)

Shimano Zee cranks and BB

"Havent put the cranks and BB on yet. But i know they will be great"

Dale K. (5/5)

Q&A

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