Questions tagged [crankset]

The crankset is the combination of components that convert motion from the rider's leg movements into rotational motion to drive the chain and propel the bike. The crankset includes one or more chainrings (sprockets) and the two cranks, or arms, to which the pedals are attached.

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Broken screw thread on GRX 800 crankset

I made my gravel-dream bike few month ago by hand. I followed all the user-manual sheets from Shimano in order to properly mount the GRX 800 crankset and the pedals on it. I respected the tightening ...
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141 views

Is this crankset dead?

I bought a second hand bike and there was some noise and jerkiness coming from the driveline. I checked the chain and it was worn off, and I have changed it. Noise is reduced but still every now and ...
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Will a 11 speed Shimano Deore crankset work with a 9 speed Shimano Altus cassette? [MTB]

I have a 2020 Vitus Nucleus 27 VR with a stripped pedal thread on the left crank arm (bought it secondhand, and am guessing the previous owner crossthreaded it). The current drivetrain is a 2x9 ...
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Crank Length Measurement

I need to check my crank length. How can I accurately measure it? Do I just use measuring tape as I was nervous of this because of the small difference between sizes I.e 172.5 175
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Is an Ultegra shimano left side FC-R8000 crank arm compatible with Older Ultegra FC-6600

I have the opportunity to purchase a left sided power meter for a decent price, that is a newer FC-R8000 arm, whereas my bike currently has Ultegra FC-6600 equipped. My assumption is that because it ...
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I cannot find the correct Crank Arm Bolt for my bike

Recently, when I was riding my bike, one of the crank arms fell off and I realized that the crank bolt wasn't properly adjusted when I ordered the bike, hence when it fell off, I was able to put the ...
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2 answers
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Chain skipping teeth while staying on small front chainring

I recently converted my bike with 9 speed 105 from a triple to a double. I installed my new 34/50 crankset and noticed that chain would slip across the teeth of the 34t chainring whenever under ...
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4 answers
222 views

9/10 speed chain with vintage 2x5 crankset

I have an old crankset from an 80s 10-speed (2x5) bicycle with downtube friction shifters. The chain currently in use is marked as "6/7/8 speed," but works fine on the 5-speed freewheel. For ...
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102 views

Shimano R8000 right crankset compatibility with 105-5800

I have a full 105 5800 group for my current drivetrain on my bike. I would like to replace the right crankset (chainring + crankarm) with an Ultegra R8000 right chainring/crankarm. Is there full ...
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Upgrading Giant Roam 2 Crankset

I am having Giant Roam 2 Disc 2022 SouthEast Asia Model with the following Spec: Stem Giant Sport 8 Degree Front Derailleur Shimano Acera FD-T3000 2×9 Rear Derailleur Shimano Alivio RD-...
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Do I need to replace bottom bracket and/or cranks for road-to-fixed conversion?

I have a vintage race frame with a Shimano Dura Ace 7400 series double-ring crankset on a Shimano bottom bracket of some kind. I intend to use the frame to build a fixed gear bike. As I understand, ...
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Which Bottom Bracket do i need? 107mm 41

I cant´t find a Bottom Bracket for my Cube two 15 2017. It need a 107mm x 41. Please help me.
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Is the Neco B910 bottom bracket's square taper JIS or ISO?

I'm looking to replace my cup and cone bottom bracket as my current one has deep grooves on the spindle. Because for some reason replacement spindles (113 total width, 68 shell width) are very ...
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5 votes
1 answer
847 views

Are the chainrings supposed to have irregular sized teeth?

I just bought a Shimano Tourney 3 speed crankset (Fcty301 Jts01) and it came sealed in a Shimano bag, that was inside another sealed bag, but when I look at the teeth, they are not regular, some are &...
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3 votes
2 answers
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Sora 50/34 crankset used to replace FSA Gossamer crankset

I recently purchased a Boardman SLR 8.9 which features 105 shifters, 105 11/30 year cassette, 105 front and rear derailleur, FSA compact 50/34 gossamer 172.5 crankset and tektro front and rear rim ...
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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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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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Swapping BB and crankset between bikes

I have a 2001 DeVinci Santiago road bike, which has a Shimano 105 road triple crankset and an octalink BB. I'm about to buy a 2010 Masi Speciale CX, which has a Truvativ Touro compact double and a ...
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2 votes
1 answer
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Shimano Alfine crankset Q Factor?

Do you happen to know what the Q Factor of the Alfine Crankset is? I've looked all over the web and can't find this piece of information. I'm interested in the single chainguard 42T version, and my ...
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5 votes
1 answer
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How should I remove this crankset?

I recently acquired a 10 year old Cube Acid MTB which I intend to refurbish and convert to an ebike. I need to remove the crankset and purchased a crank puller. It seems to be a universal size but the ...
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2 answers
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Giant power meter left/right balance

I have a Giant TCR Advanced Pro 0 Disc 2021 which came with the Giant PowerPro power meter built into the cranks. I've seen people posting things like, "Don't take too much notice of the L/R ...
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7 votes
1 answer
256 views

How to attach a shimano crank arm power meter on a low end bike with a square taper crankset?

I have an old bike that has a cheap square taper crankset. And I would like to attach a crank arm power meter to it that will fit a Shimano crankset. Is there an adapter that can fit into the square ...
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2 votes
1 answer
329 views

Replacement/substitute for a GRX 600/800 crankset

I'm currently building a gravel bike from (almost) scratch. Due to the lack of availability of the GRX crankset in Europe, I'm looking for a replacement part of the 2x11 GRX 600/800 crankset. So my ...
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4 votes
2 answers
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Shimano pre-greased crank: where to spread the grease?

The Shimano Altus FC-M311 crank comes pre-greased with four generous drops of grease on one side of the crank's thread (the yellow circles in the image), but it's unclear where it should be used: on ...
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6 votes
2 answers
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Is there empirical evidence that SRAM DUB bottom brackets have longevity issues in the BB86/92 format?

It's well-known that bottom brackets designed for a 30mm spindle and a BB86/92 press-fit bottom bracket shell (41mm internal diameter) will have reduced lifespans due to the very small bearings that ...
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1 vote
1 answer
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Can this combination work? SHIMANO RD M5120 with a M6000 drivetrain?

I definitely dislike the new proposals made by SHIMANO, but I have found that RD M5120 can be used in 10 or 11 speeds, it would only depend on changing the chain. Well, my doubt arises due to the fact ...
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2 votes
1 answer
104 views

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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3 votes
2 answers
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Need Help Identifying Compatible Crankset(s_)For This Spindle

Bought a bike with stripped/straight-threaded cranks, so they are useless, wanted help identifying this type of spindle so I can go online and order a new crankset.
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6 votes
2 answers
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Wondering what type of pedal/adapter I need for these crankarms

Just bought a Rocky Mountain Dirt Jumper, not sure about the exact model because the previous owner custom-painted it. It is missing a pedal and I noticed that the crankarm wasn't threaded like a ...
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  • 223
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Does a ROTOR Bikes 3DF or 3D+ axle/spindle remove?

Anyone know if it's possible to remove the axle from the left non-drive side ROTOR 3DF XC3 crank arm? It has a spline, so it looks like maybe a tool would do it, but probably proprietary? Or maybe it'...
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6 votes
2 answers
591 views

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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3 votes
2 answers
197 views

Remove Shimano 105 left crank arm

I'm trying to remove the left crank arm. I've previously been able to do this with a 10 mm Allen key. But as you can see, this time it's stuck. Does anybody know which tool is best for the job? I fear ...
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Bottom Bracket Axle wobbling while cycling?

The other day, I was riding up a hill and crack, something happened to my front derailleur. The chain rings now wobble back and forth on the horizontal axis as I pedal. I decided to take a look and ...
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2 votes
1 answer
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Why does crank arm need both a bolt and teeth to be fitted to the spindle?

I think the title is self explanatory: why wouldn't either one or the other be enough? After removing the bolt, you still need a specific tool to pull off the crank arm from the spindle, because the ...
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3 votes
1 answer
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Chainring spacing of cranksets universal?

My understanding is that 7/8/9/10 chainring spacing is the same. I have a Shimano Claris double/2x8-speed that I want to upgrade to a triple front, but using a 10-speed crank. I’ve acquired a Shimano ...
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2 votes
2 answers
220 views

What is the highest-level Shimano MTB series where the crankset arms aren't hollow/bonded?

I'm starting to be wary of the frequency of Shimano bonded crank arm failures and I want to stick to the highest series that still uses the solid, non-hollow crank arms.
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4 votes
3 answers
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What's causing the clicking on my ProWheel MPX 11 crankset?

New fatbikes have a ProWheel MPX 11 crankset 1x (hollowtech ii compatible set) and I get moderate clicking from mine, oddly, to my mind, not just when under power, but with less vigorous spindle ...
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6 votes
1 answer
516 views

Will my mix-and-match drivetrain work?

I'm currently assembling a 3x9 speed commuter bike with the following groupset details: Crank: Shimano Tourney TY501 FD: Shimano Tourney TY510 RD: Shimano Altus M2000 Chain: Shimano 9 speed Sprocket: ...
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2 votes
2 answers
89 views

installing 1x11 gearset on a 1986 Bianchi Strada

I have a 1986/7 Bianchi Strada it is a 2x5 gearset, a SuginoVP 110 crankset and shimano derailers. I want to convert it to be more like a gravel bike so change it to 1x11 or 1x9 gearset with 11-36 ...
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8 votes
1 answer
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I replaced my bottom bracket and now my crank arm bottoms out on the square shaft before it can be torqued. What did I do wrong?

I just replaced my bottom bracket using another one of the exact same make and size (Sunlite 68mm x 103mm square tapered shaft cartridge). It installed smoothly and everything seemed to be going well ...
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3 votes
1 answer
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Swap out 2x RS510 with GRX 1x?

I have a 2021 Cube Cross Race Pro, currently in a factory spec 2x set up. It’s the 105 hydro group set on it with a rs510 chainset in 50/34. I want to go 1x and looking at fitting a GRX chainset. Has ...
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2 votes
1 answer
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How do I measure my crank-arms?

I am interested in getting a left-side power meter for my road bike. It has Shimano 105 components. I'm considering a 4iiii Precision left-side crank, in a 105 or Ultegra version. I looked, and don't ...
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  • 171
4 votes
1 answer
154 views

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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5 votes
5 answers
728 views

Can 2x12 and 3x11 drivetrains have (practical) range greater than 700%?

I’ve come across 2x12 and 3x11 triple cranksets. Can these systems necessarily provide more range than 2x11 and 3x10 @ > 700%? Edit: My question is really what can practically be accomplished, with ...
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0 votes
1 answer
123 views

Stages Power Left Compatibility with Shimano Sora

On my Cube Attain Pro 2021 bike I have a Shimano Sora FC-R3000 crankset(175 mm - 50/34T). Compatible with my budget, I'm planning on investing in a Stages Power Left power meter to get wattage data ...
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3 votes
2 answers
84 views

My old BB has a little play. Is it normal? Can I still run it? for how long?

My threads from the crankset were gone, had to cut all crankarm with iron cutter in order to be able to extract the crank arm. But before that, I gave some hammer strikes to it trying to get it out. ...
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3 votes
1 answer
94 views

What Sugino crank is this?

I stumbled upon this image of a Sugino crank and it reminded me of the popular Ritchey Logic crank. Knowing that Sugino manufactured those Ritchey cranks I was wondering if Sugino also sold the same ...
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4 votes
1 answer
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SRAM GXP crank partially stuck in bottom bracket

I (unfortunately) have a SRAM Apex GXP crankset that I need to replace after less than a year of use because it's garbage. But I can't get the crankset out of the bottom bracket. I've taken the bolt ...
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4 votes
1 answer
165 views

What does the "-A" in a Shimano "FC-M171-A" crankset mean?

The FC-M171 and FC-M171-A are listed separately in Shimano's spec sheet (p73-74), but I can't see any difference between the listed specifications. Curious, as my old crankset was FC-M171 and the ...
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2 votes
1 answer
197 views

Cranksets: Altus with "wrong" chain line, or Tourney with right chain line?

I have a Specialized Sirrus Sport (2010). The Shimano Altus FC-M171 chainset is worn and needs replacing. It's 48/38/28 with 170mm cranks, and Shimano says its ideal chain line is "47.5 / 47.5+t&...
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