Shimano Deore FC-M612 Crankset 3x10-speed 40-30-22 - black

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Description of Shimano Deore FC-M612 Crankset 3x10-speed 40-30-22 - black

26 inches was the standard wheel size for mountain bikes more than 30 years. Components and accessories have been consistently developed and optimized for this wheel size. Due to new developments old standards need to be revised. This is especially true on the introduction of the larger wheels with 27.5 and 29 inches. Shimano presents a special 3x crankset with 40-30-22 teeth for these large wheel sizes.

The standard set up of the drive train has been changed completely to increase the efficency in shifting and achieve huge stability. The Dyna-Sys crankset is equiped with 40-30-22 teeth chainrings. They are combined with a 10-speed cassette. The closer ratio front drivetrain and the wider range cassette sprockets bring many advantages. Because of the 10-speed cassette the rider can spend more time on the middle chain ring. The drop to the 22 teeth chain ring is now much smoother and faster. Also it is easier to ride the 40 teeth chain ring so riders will use it more. The number of recovery shifts in the rear when using the small front chain ring is reduced to one. So shifting to the 22 teeth chain ring gets a seamless transition, letting riders deliver consistent, efficient power while maintaining cadence.

Closer gear ratios mean smaller jumps between the gears which offers smoother shifting, less chain expansion, more efficient chain movement and less chance of dropping the chain.

Only for BSA bottom brackets with 68 or 73mm case width.

Only compatible with super narrow HG-X 10-speed chains.
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Fact Sheet of Shimano Deore FC-M612 Crankset 3x10-speed 40-30-22 - black

Product Name: Shimano Deore FC-M612 Crankset 3x10-speed 40-30-22 - black
Manufacturer: Shimano Parts
Item Code: SHI188004
Manufacturer item code: EFCM612C002XL | EFCM612E002XL
Material: aluminum, steel, composite
Weight: approx. 879 gram (at 175 mm without bottom bracket)
Crank length (mm): 175
Chainwheel, number of teeth: 40-30-22 teeth
Fitting for derailleur: 3x10s
Axle profile: Hollowtech II
Bolt Circle (mm): 96/64
Type of chain: Super narrow HG-X 10-speed
Included in delivery: incl. SM-BB51 bottom bracket cups
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Shimano Deore FC-M612 Crankset 3x10-speed 40-30-22 - black
in stock, delivery time 1-3 dayscrank arm length: 170 mm
in stock, delivery time 1-3 dayscrank arm length: 175 mm
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