Questions tagged [chainring]

The cogs (gears) at the front of your drive chain, connected to the cranks.

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Chain length when upgrading chain ring

I currently run a 1x11 with a 30t chain ring. I'm upgrading to a 32t chain ring and a new chain. The cassette will be the same. Would I be correct in assuming I need to be +2 links on my new chain?
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Are equivalent chainring/cog combinations indistinguishable?

Let have these two combinations of chainring/cog. Both for 100 rpm, have almost same speed (and we can of course find cases where the speed matches exactly, but this is a quick example). 50x19-->20....
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Giant Power Pro chainring compatibility

I have Giant Power Pro on Ultegra R8000 crankset. Does anyone know if the Giant Power Pro is compatible with other chainrings?
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Is it possible to change chainrings to bigger on Shimano FC-MT500-B2 (2x10, 36T-26T)?

I'd like to change a chainring for Shimano FC-MT500-B2 crank on my Grand Canyon 5 bike, because current setting (36T-26T) is not enough for me. On my previous bike I had 44T and it was fine, and I'd ...
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How can I find out the number of teeth on each cog for cassettes and chain rings?

I am trying to write an algorithm that will give me the number of unique gear ratios given information about chainring(s) and cog pair. To do this though, I believe that I need to know the number of ...
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Shims between Crank and Chain Ring

I should like to move the chainring on my single speed bike a little further outward (fig 1). The reason is to have enough clearance between chain ring teeth and frame (fig 2). At present I have a ...
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Adding a second chainring to a 1X

I have a 1X gravel bike with an 11-46 cassette and a 40T chainring. This gearing works for most of my riding but there are times when I'm doing some serious climbing that it would great to have one or ...
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Do these chainrings need replacing?

I know this has been asked several times but I'm curious if anyone can weigh in on whether these specific chainrings need replacing. They're from a triple chainring setup. I'm replacing my chain and ...
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Why will some chainrings fit 7s-12s while others are meant for just 10s?

When looking for a chainring, I see that Shimano specifies whether it is for 2x or 3x. I'm guessing that the pins (protruding rivets) on the former will be on one side only, and on both sides on the ...
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Chain dropping between chainrings when shifting down

I have a power2max NGeco 110mm spider with SRAM 50/34 chainrings mounted on it. I'm using an 11sp chain and an R8050 Di2 front derailleur. When changing from the big ring down to the small ring, the ...
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Crankset compatibility: Can I replace Shimano FC-M521 with FC-T4010?

I recently bought a Jamis Coda Elite (2012) second hand. I'm slowly replacing all of the drive train as most of the components are worn. According to p114 of the original product catalogue, the bike ...
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Chain touches frame after re-installing crank

I'm restoring a vintage road bike. I had to strip the whole bike so I could get the paint off to re-spray so now I'm trying to put it all back together! I was lining up the new-old front derailleur ...
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Are newer SLX chainrings compatible with older series?

I have an SLX FC-M660 chainset which has worn out chainrings. I'm looking to replace them but I don't know if they are compatible with newer FC-M7000 series.
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Can I change my large chainring without changing the entire crank

I am running a 2x10 Deore M4100 set up on my current bike. My crankset is 36/26 T and my cassette is 11-42T. I want to make this bike faster, and I want to know if I can just replace the upper ...
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Shimano LinkGlide (durable range) cassette/chain compatibility with non-LinkGlide derailleur

I've seen that the Shimano LinkGlide range starts to be available in shops. LinkGlide is a new sub-range (flat handle bar, Deore and XT) that emphasizes on durability, meant for e-bikes and commuters. ...
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Should I replace a 1x chainring with the chain and casette?

I have a MTB with a Shimano 12 speed 1x setup (M7100/8100 XT/SLX components mixed). My chain is worn, as indicated by my tool, so I need to replace it, along with the casette. But: should I replace my ...
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Is the process of shifting the front chainring on a road bike with 2 chainrings always a two-step (two click) process on the shifter?

I have a Shimano Claris groupset. I was speaking to my bike mechanic and he was saying to shift the front derailer it is a 2 step process to change the front derailer. As per the manual it says with ...
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What is the purpose of the divots on Shimano Altus 2x chainrings?

Pictured is the Shimano Altus 2x crankset chainring (bike from which it comes was a 2019 model so I assume it may be one generation old, though the current chainring generation has the same ...
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Adjusting chain line by mounting the chain ring inside the crank spider

Background: Sugino RD2 single-speed cranks call for a 103mm bottom bracket which gives a chain line of 45mm, which is what I need, but there aren't suitable square-taper BBs in this size. ...
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Why does the 'try other positions on your square taper spindle' trick work in reducing chainring wobble?

Example here: Does this mean that there is a manufacturing defect in the spindle/BB/crank? Or damage? Or is it just the nature of these things that there will be one ...
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Vibration feel on pedals

For a while, I am having a vibration feeling (and actually it vibrates) through my feet from chain. It is not because of front derailleur, I have just aligned them. There are no problems with rear ...
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2 votes
2 answers
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What is this device fitted to the chain ring called?

Many bicycles have a guard fitted to the chain ring, presumably to keep your trousers from getting oily on the chain, but this it the first I've seen that has a guard on both sides of the chain. Does ...
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Ultegra 6600 compatible chainrings

I am looking to replace the chainrings on my bike, which has 10-speed Ultegra 6600 double (it's the "ice grey" SL version, so I think technically it's 6601-G). Amazingly, there are still ...
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Tiagra 4700 Compatible Chainrings

I'm looking for some replacement chainrings for a Shimano Tiagra 4700 50.34T 10 speed. I'd like to keep the same ratio and same or similar tier of parts. So far I haven't found any close matches by ...
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105 11-speed Crankset & Brake Caliper Compatibility w/ 2400 Claris Groupset

I have a 2016 Bianchi Via Nirone 7 with a 2400 2x8 Claris groupset. A buddy of mine is "upgrading" in stages and is letting go of his 105 components at a VERY reasonable price. Great timing ...
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How critical is the position of the shifting aids (pins) on the front chainring?

My crankset (Ritchey Logic) has a 5 arm spider design with one chainring bolt hidden behind the crank arm. When installing a large chainring I need to rotate the ring in order to install it properly. ...
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Is this level of wear okay on a new chainring

Very recently I bought my first new bike! I only did 750km on it so far. However the the chain rings are showing some level of wear, see picture. The teeth used to be all black, now you can see bits ...
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1 answer
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Crankset with one chainring and two chain guards?

I would like to custom build a crankset which would like the one I have on my ebike, but with more teeth. My current chainring is 52T, and I would like to go up to 58T. What I have is a four bolt, ...
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Whatever happened to the 4 x n derailleur drivetrains?

Around the mid-1990s I am positive I remember seeing bikes with 4 x n drive trains e.g. 28-speed (4 x 7 gears). There is nowadays a trend towards just 2 or even 1 front sprocket e.g. 1 x 12. More than ...
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120 BCD Chain ring compatibility

I am converting my merida silex from fsa omega bcd 120/90 bcd 2x9 to a 1x9 drivetrain. I am keeping the cranks and bottom bracket and trying to only change the rings. There are not many 120 bcd narrow ...
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1X11 build - align / slip / set up

Looking for advice on my 1X11 set up on a bike I’m (trying to) build: The chain slips off single front chainring, on the inside, when I move into biggest rear cogs (gear 1 or 2). When I align the ...
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Bigger outer chanring for Shimano FC-M4100-2 [duplicate]

I'm trying to find a way to put on a bigger outer chainring on my FC-M4100-2 crankset. It's 26/36T and I would like to have 26/42T. It's 96 bcd but I cannot find any rings. Any ideas? Is it even ...
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Shimano SLX direct mount chainring spider bolts - are they available?

On my shimano SLX 12 speed 1x direct mount crankset, there are 8 tiny bolts that fasten the chainring to the direct mount spider. They are some weird allen head with a post in the middle, and very ...
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4 votes
1 answer
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Can I (easily) change this chainring?

A while ago I bought a fairly cheap bike - a Pinnacle Lithium 1 from Evans Cycles in the UK. It's dangerously close to being a BSO, but I really enjoy riding it and have no regrets about buying it. ...
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I am thinking about changing my drivetrain to a 1xN. Do I need a new chain?

I am think about changing to a 1xN drivetrain, and I was wondering if I needed to change the chain as well.
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How to Remove Square Taper Chainring Bolts

I have removed my chainring from my Bicycle, but I do not know how to remove the chainring bolts I have tried using an Allen key but I cannot move it. Do I need a special tool? Here is a photo Any ...
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1 vote
1 answer
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Trek Dual Sport 4 - chainring question

I have recently got hold of a Trek Dual Sport 4 but find I spend the majority of my time at the higher end of the 1x11 gears (8,9,10,11). I am wondering if it is possible to change / upgrade the ...
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Do I need to replace my chainring?

Finally replaced the drivetrain on my 2019 yt jeffsy. I replaced the chain and cassette, but seem to be having an issue with the new chain jumping off of the chainring. The new chain is the same ...
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5 votes
1 answer
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About crankset Shimano FC-C202

Can someone please elaborate on middle ring of this vintage crankset? In four places metal looks broken, although from photos found on internet this seems to be part of design. Roughly washed ...
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2 votes
1 answer
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Acera Chain Ring alternatives

I have an Acera 3x9 mega9 setup (FC M391) on a 2015 Fuji flatbar. I am refurbing it for secondary use, trying to replace as little as possible. My first question is if any 104bcd 9-speed chain ring ...
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3 votes
2 answers
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Crankset for 2006 Raleigh MTB

I have a Raleigh MTB "Sports" with 6061 aluminum frame that was bought new in 2006 or 2007. It's undergone various repairs over the years and I'm still decently happy with it. However, ...
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3 votes
2 answers
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Any history on Viscount bicycles?

I managed to pick this Viscount bicycle up from my local scrapyard along with a 1987 women’s BSA bicycle. Both of these bicycles work. The Viscount has a sticker on it saying triple champion 1981 so I ...
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3 votes
3 answers
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How to make a 1x city bike easier to ride uphill?

I'm trying to convert an old city bike (https://archive.trekbikes.com/us/en/2010/trek/navigator10wsd#/us/en/2010/trek/navigator10wsd/details) for my middle-aged mother who did not do any sports so far....
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1 answer
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Is my bike safe to use if cogs and crank is not that aligned?

Hey guys is it fine if my freewheel bike which is single speed is not that straight with its chain line, because my cogs and crank arent that straight but it is also not that far, im thinking if it is ...
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2 votes
2 answers
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How to change chainrings on this Tiagra crankset?

I want to switch to 46/30 but don't know how to begin. The crankset is Shimano Tiagra FC-4700, 50x34T, 170mm
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1 answer
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Can I switch 44 teeth Chainring to 50 teeth

System: Shimano Claris 2000, 1x8 speed.
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1 answer
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Chainring compatible

i have a Alivio m3100 Cassette cs Hg400 (12-36T) and m3100 rd, can i installed a 2x crankset Gxp (28-38T) on my drivetrain alivio???
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3 votes
2 answers
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Can I find out about compatible newer models of my Shimano chainring?

I have an MTB that is quite old. The biggest chainring with 42 teeth is now done and I need a new one. It's a Shimano FCMC30, but it seems nobody is selling that new anymore. The chainring in question ...
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1 answer
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Is it possible to add another chainring to Cannondale Trail SL 3?

I recently bought a Cannondale Trail SL 3 2021, and quickly realized that I need heavier gears for riding comfortably down hill and on flat ground. Is it possible to add a second, larger chain ring ...
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1 vote
1 answer
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105 11-34T Cassette Compatibility

I purchased a Merida Speeder 400 a year back. This came with Shimano 50-34 teeth and Shimano CSR7000 11-32 teeth 11-speed cassette which I replaced with Shimano 105 R7000 11 Speed 11-34 Teeth Cassette....
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