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Shimano CR-M81 chainring, 1x11

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Shimano XT 11-speed chainring SM-CRM81 with 32 teeth and 96 mm bolt circle for 1-speed FC-M8000 crank.

Latest features and premium performance: Shimano XT 11-speed Chainring SM-CRM81 

The dedicated XT 1x chainring features retention technology with a unique tooth profile that eliminates the need for chain retention devices. New XT M8000 provides range and ensures rhythm for diverse riding styles and terrain to create smooth, harmonic pedalling - the ultimate goal of a drivetrain. 

Reduced capacity for dropped chains 
The 1x11 tooth profile on the XTR and new DEORE XT chainsets combine wide steel teeth shape with special hooked teeth design for lasting chain retention especially over uneven terrain. These improvements increase chain retention force by 150%, increasing chain life and drastically reducing the possibility of a dropped chain.

Features

  • New tooth profile with Dynamic Chain Engagement
  • Most advanced mountain bike chainrings ever produced
  • 1x with proprietary chain retention technology
  • Available chainrings in 30T, 32T, 34T 

Product features

  • Use: MTB
  • Model: SM-CRM81
  • Group: XT (1 x 11)
  • Teeth: 32
  • Suitable for: FC-M8000-1/FC-M8000-B1
  • Compatible Chain: HG-X 11-speed
  • Gear arms: 4-arm
  • Bolt Circle Diameter: 96mm

Material

  • Stainless steel / CFRP

Weight

  • 90g

Scope of delivery

  • Shimano XT 11-speed Chainring SM-CRM81 32T
Product features
Together with the special shape of the teeth, it ensures better stability of the chain in demanding MTB conditions as well as for enduro and trail riding
The construction is a combination of steel and composite for higher rigidity and long life
Product details
Colour black
Groupset Shimano XT
Number of teeth 32T, 34T
Converter mounting BCD 96 mm
Spacing 96 mm
For transfer. systems 1x11
product ID 57263
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WARNING
For installation, adjustment and replacement information about products not found in the user's manual, consult the place of purchase or a distributor. A dealer's manual for professional and experienced bicycle mechanics is available on our website (https://si.shimano.com).
For safety, be sure to read this “user's manual” thoroughly before use, follow it for correct use, and save it so that you can refer back to it at any time.
The following instructions must always be followed in order to prevent personal injury and physical damage to equipment and the surroundings. The instructions are classified according to the degree of danger or damage that may occur if the product is used incorrectly.
DANGER - Failure to follow the instructions will result in death or serious injury.
WARNING - Failure to follow the instructions could result in death or serious injury.
CAUTION - Failure to follow the instructions could result in personal injury or physical damage to equipment and the surroundings.

WARNING:
Do not disassemble or modify the product. This may cause the product to malfunction, you may fall unexpectedly and be seriously injured.
Before riding the bicycle, check that the crank arms are not cracked. If there are cracks, the crank arm may break and you may fall off the bicycle.
Be careful that parts of your clothing do not get caught in the chain during riding. If they do, you may fall off the bicycle.

CAUTION:
Be careful not to touch the gear teeth. There is a danger of injury.

Shimano
Chainrings Shimano
Japanese manufacturer produces road, mountain, gravel, trekking, BMX and e-bike groupsets. They also offer a whole series of components and apparel. Their range goes from wheels, footwear, eyewear to backpacks. Shimano is a traditional manufacturer known for their quality work, which is why they are the favourite choice of amateurs and professionals.
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