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Shimano SLX M660 10 SPD Chainring
Shimano SLX M660 10 SPD Chainring
(5)

Shimano SLX M660 10 SPD Chainring

Item #: CG245A16
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Shimano SLX M660 10 SPD Chainring

Shimano SLX M660 10-Speed chainrings are a direct replacement for your 10-Speed Shimano Dyna-Sys chainrings. The inner ring features a 64mm BCD and the middle and outer rings are 104mm BCD. All three rings have a 4 bolt pattern.

  • 10 Speed DynaSys
  • 24T 64BCD Inner Chainring
  • 32T 104BCD Middle Chainring
  • 42T 104BCD Outer Chainring
4.8 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
4
1
0
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0
This chainring was perfect for my 2x settup. Looks great
Nice part

PROS: Lightweight, Durable, Versatile
October 25, 2016
Location:
Al
Good price on replacement rings.
It says HG-X chain only but I used a 10 speed SRAM chain with no problems. (9-speed chain was a no-go)
April 12, 2016
Location:
Maine
Great chainrings
These came on my bike, and I put a lot of miles on them with no issues. I didn't really need to change them but I did just to be safe. They work well in all conditions, and never gave me any headache

PROS: Lightweight, Easy To Install, Durable
March 7, 2016
Location:
Cleveland Ohio
works perfect
It's steel so it's a tad heavier than my aluminum one but that's good it should last longer. It shifts perfect, what's not to like?
September 12, 2012
Location:
Rocklin,CA
Good product but race face is better
Shimano is good brand.

PROS: Lightweight, Attractive Design, Durable

CONS: Difficult To Install
March 7, 2016
Location:
Medellin - Colombia

Q & A

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Browse 3 questions Browse 3 questions and 5 answers
I am converting from 7x3 speed to 10 speed. Should I just change the outer chainring or 7 speed front chainrings would work just fine?
A shopper on Apr 22, 2017
BEST ANSWER: When converting to 10 speed your should know that the thickness of each chain ring is reduced. Thus you need to change the whole system: From chain ring, rear cassette, and derailleur.
Currently I have 7 speed chainrings. Would they work fine as inner chainrings for everything to snug in correctly?
A shopper on Apr 24, 2017
BEST ANSWER: These chainrings are designed for use with 10 speed systems, so it's not likely to work properly. Your best bet is to use chainrings designed for your specific crankset.
Are these compatible with Shimano slx m660 outer chainring?
A shopper on Apr 20, 2017
Shimano SLX M660 10 SPD Chainring
Shimano SLX M660 10 SPD Chainring
Shimano Chainring Bolts
Shimano Chainring Bolts
BEST ANSWER: These bolts should work fine. You will need an inner ring mounted as well for everything to snug down properly.

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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.