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Chainrings

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42 Questions : 57 Answers

Q&A for Chainrings category

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Chainrings

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2 answers

Small chainring size

İ have Shimano m-411 triple crank 28x38x48, 8speed. İ would like to fit a 26t inner ring, would a 9sp ring be ok, or could you recommend one?.
Age: 65 or over
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11 months ago
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Answer: 
The suggested chainring below is designed for use with 8/9-speed drivetrains and is compatible with the M411 crankset.
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11 months ago
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Answer: 
you can select any ring with BSD=64mm
Age: 45 to 54
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2 months, 3 weeks ago
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Truvativ 9 speed inner chain ring

Hi. I have a Boardman Road Comp. It runs a 9 speed Truvativ Elita chain ring (50/36). I want to swap the inner to a 34 tooth. Is there anything that will fit?
3 months, 1 week ago
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Answer: 
Unfortunately at present we do not have a 130mm BCD chainring with a 34tooth count.
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3 months, 1 week ago
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Answer: 
You can choose from Shimano with BСD110mm example Tiagra or 105
Age: 45 to 54
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2 months, 3 weeks ago
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Chainrings

I have an Ultegra SG-X 50/34t FC-6750 compact set. Am I able to fit a 52 or 53t ring instead of the 50t? And if so, which will fit?
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2 months, 4 weeks ago
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christchurch,NZ
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Answer: 
Unfortunately this would not be possible as the Bolt Circle Diameters are different between 'Compact' and 'Double' crankset gear ratios.

The chainrings cannot physically fit to the crankset.
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2 months, 3 weeks ago
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Answer: 
Shimano does not produce stars at 110mm (for a compact) more than 50T, but you can find and use other manufacturers. For example BBB or FSA. but pay attention to BCD = 110mm
Age: 45 to 54
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2 months, 3 weeks ago
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Gender: Male
Attitude: Just for Fun
1 year, 2 months ago
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Yamba,AU
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Answer: 
In a four hole system such as SRAM the BCD (bolt circle diameter) is simply the distance between the hole centres of two opposite holes and is best measured from the outer edge of one hole to the inner edge of the opposite hole.

Five hole systems such as Shimano are more complicated.

1. Measure the distance between adjacent holes. Call this distance C.

2. Then the BCD is given by: BCD = C/sin(180/N) where N is the number of holes.
Age: 55 to 64
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5 months, 3 weeks ago
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Newcastle-u-Tyne,GB
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Answer: 
The bolt circle (BCD) refers to the distance between the bolt holes on the chainring. This is important as chainrings and cranks can have different bolt spacings.

The way to identify your current crank/chainring BCD is to get a ruler and measure the center to center of two adjacent bolt holes.

45.3mm measured will equal a 64mm BCD the most common for 22t size.

If you need further help with this please email us at

tech@chainreactioncycles.com
1 year, 2 months ago
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chainring

to replace sram chainring Would this fit a sram xo1 crankset 94mm
Age: 45 to 54
Gender: Male
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3 months, 4 weeks ago
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Rotorua,NZ
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Answer: 
This crankset requires a SRAM specific X-Sync chainring; options can be found below.
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3 months, 3 weeks ago
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Answer: 
yes, it should work, the main point - 94mm
Age: 45 to 54
Gender: Male
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2 months ago
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Age: 65 or over
Gender: Male
Attitude: Passionate and Obsessive
3 months, 1 week ago
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messina,IT
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Answer: 
In teoria non esiste un ordine . Dipende da quale corona usi di piu' e che quindi cambi piu' spesso.
Io inserirei la 32 e poi la 22
2 months, 2 weeks ago
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Answer: 
è semplice - selezionare l'opzione desiderata(numero di denti), premere il tasto "buy", pagare, in attesa per l'ordine. faccio sempre.
Age: 45 to 54
Gender: Male
Attitude: Just for Fun
2 months ago
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I need to find the replacement INNER ring, which is a 32 tooth with 104mm bolt holes, I believe it is shimano part # Y1MM98130, I cannot find it on your website.
I have added the outer triple chainring from your website as a guide to the inner ring I require.
Regards Chris
Age: 45 to 54
Gender: Male
Attitude: Passionate and Obsessive
 
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1 month, 3 weeks ago
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Orange,AU
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Answer: 
The FC-M770 chainrings are fully compatible with your crankset, which can be found below.
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1 month, 3 weeks ago
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Answer: 
you can use any star with BCD 104
Age: 45 to 54
Gender: Male
Attitude: Just for Fun
6 days ago
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narrow wide chainrings

can I use a narrow wide chainring with a normal nine speed set up (not a clutch derailleur ) as a single ring
Age: 55 to 64
Gender: Male
Attitude: Passionate and Obsessive
11 months ago
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mansfield,GB
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Answer: 
This is a good setup; however to get the full benefit from a Narrow-Wide chainring, a clutch mech is advised.
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11 months ago
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Answer: 
yes, you may use it.
Age: 45 to 54
Gender: Male
Attitude: Just for Fun
5 days ago
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Age: 65 or over
Gender: Male
Attitude: Passionate and Obsessive
10 months ago
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dundee,GB
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Answer: 
As long as the BCD and hole count on the chainring matches that on your crank spider, you should be ok to use different brands with different cranks. Some cranks have specific BCD/ Spider alignment; if you drop us an email with details of your crank (model, year etc) we will be able to have a closer look for you. http://www.chainreactioncycles.com/...
Age: 25 to 34
Gender: Male
Attitude: Just for Fun
10 months ago
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Answer: 
Yes, you may use it.
Age: 45 to 54
Gender: Male
Attitude: Just for Fun
5 days ago
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new chainring needed

I have a sram 50t 34t 110bcd chainset and I need to replace the 50t ring. can you tell me what makes of chainring are compatible with this chainset as I cant seem to find an exact replacement in your stock! regards Frankie.
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6 months ago
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by aberlour,GB
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Answer: 
At present we do not have a directly compatible SRAM chainring to fit your crankset.

Please contact customer service with information regarding your crankset model and we can have a look at some alternatives.

http://www.chainreactioncycles.com/...
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6 months ago
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Answer: 
you may use any chainring with 110BCD from Shimano, SRAM or FSA
Age: 45 to 54
Gender: Male
Attitude: Just for Fun
5 days ago
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