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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1answer
42 views

Will a bashboard and 3 chainrings require longer bolts?

Following on from Could I use a FD-M735 with a FC-MC3x?, I noticed that that the Shimano FC-MC36 crank with this unusual bash board fitted, only has one chainring. Would I be able to get the three ...
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56 views

Could I use a FD-M735 with a FC-MC3x?

I have a Shimano FD-M735 currently on my bike, and I would like to replace the aging FC-TY33 that I have, with a FC-M730 ideally, but they are too pricey. However, I have found a FC-MC36 and a FC-MC34 ...
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1answer
120 views

Crankset removal, Shimano FC-M361

I'm trying to save an old Trek and need to remove the bottom bracket. The crankset says FC-M361 but when I google that it says that's a square taper bottom bracket. This surely doesn't looks like a ...
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102 views

Shimano Sora FC-3503 chainrings

I want to change my 50T chainring of my Shimano Sora FC-3503 crankset. Do I have to buy the same one or other chainrings are also compatible with it? If yes could you give me some light which ones ? ...
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137 views

Shimano front derailleur compatiblity with FSA crankset

The front derailleur on my old bike is giving me some problems, it shifts only after 3-4 presses on the shifter, and the chain rubs on the front derailleur and makes this grinding noise. I was ...
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1answer
125 views

installing cotter pin cranks - pin isn't flush

So I managed to get the right sized cotter pins. Without installing the cranks onto the spindle, I could drop the cotter pin through the hole. However when I attached the spindle, the pin won't go ...
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1answer
106 views

Use 105 crankset on 9x2 Sora equipped bike

Want to ditch my basic square taper FSA Vero (50/34) crankset on 9x2 speed Sora drivetrain (2018 Devinci Silverstone 2) in favor of 105 compact crankset. I will attempt to get one in 50/34 not to mess ...
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188 views

Damaged pedal axle thread in crank arm [duplicate]

I'm brand new to cycling and I have an entry level Cannondale catalyst 3. I was riding my bike on a trail and when I got home I noticed my right pedal was wobbling around. I tightened it but the pedal ...
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338 views

I’m unsure what I need to change to 1x chainring

I’m looking into upgrading my bikes chainring to a single one, I took off the one I have on my bike currently and there is no way of transferring the crank arm to the single chainring, I’m unsure what ...
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1answer
390 views

Can you have an Ultegra crank arm on the one side and a 105 crank arm on the other side

I have an Ultegra groupset, but I also have a 105 left crank that has a power meter. Can you mix these two? I don't care about the weight difference, only talking about a geometry point of view. My ...
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306 views

Mixing Ultegra or 105 left crankarm with Shimano Sora support

I'm interested in buying this power meter: https://pl.aliexpress.com/item/XCADEY-Bicycle-power-meter-Crank-power-meter-Bicycle-GPS-Computer-Garmin-Edge-Bryton-IGPSPORT-Support-ANT/32798182129.html. I ...
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793 views

How to remove an older Shimano Hollowtech crank?

I'm getting some creaking in my crank/bottom bracket and a good first step towards fixing this is to remove and clean the cranks and chainrings. If I still have the creaking, the BB is almost ...
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1answer
264 views

Chain getting stuck between large chain ring and front mech when changing into big ring

15+ year old Scott MTB. When changing gear from mid to large chain ring the chain gets pinched between the mech and the large chain ring. Tried adjusting the max min screws, problem persists. Old bike ...
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2answers
131 views

What crank arm bolt is required here?

The crank arm on my Decathlon Triban 520 became loose during a cycle. On inspection the crank arm bolt is missing. What bolt do I need as a replacement? (Or how can I figure it out?) The manufacturer ...
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2answers
331 views

Can I replace a Shimano FC-MT500 26/36 crankset with a Shimano Ultegra FC-R8000 36/46 set?

On my Kross Level 10.0 MTB (2x10) used mostly on dirt roads and pavement I find I never use 1-10 and seldom go below 15th but I need more top end speed. Wondering if the Ultegra would be a straight ...
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1answer
112 views

swapping crankset and chainline compatibility

I'm looking into placing a power2max powermeter on my bike, which is full Ultegra equipped (R8000). Now, the chainline specs of the crankset from p2m are either 45mm or 46mm (depending on the brand of ...
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166 views

How to remove stuck Shimano Hollow-Tech bottom bracket cups?

When I tried to remove the bottom bracket bearing cups using the BB tool it was very hard to move or it's just stuck. Tried WD40 then slowly tapping the tool using a mallet didn't work. To cut the ...
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4answers
1k views

Shifting from a Tiagra BB to an Ultegra or Dura Ace BB?

So after about 10,000 miles with my bike I bought in 2015 the bottom brackets have had enough. I need to switch them out, and considering they're quite cheap in retail and also does a lot of the heavy ...
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2answers
138 views

Remove crankset when no bolts visible

I'm sure this is a very common question, but I need to remove the pedals and crank from a CCM mountain bike frame - however, the pedals have no obvious bolts - the pedal arms simply bend 90 degrees ...
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1answer
399 views

JIS and ISO square taper

I've read Sheldon Brown's page on JIS and ISO and have read exchanges in forums about the pros and cons of using ISO cranks on JIS bottom brackets. If my understanding is correct, these standards ...
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1answer
96 views

Front derailleur range suddenly has become very short

For a while when I was riding, there was a stiff feeling changing from medium to high on the crank. Yesterday it wouldn't change at all. I checked the adjustment of the High and Low screws by ...
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1answer
127 views

Stripped out bottom bracket

The bottom bracket of my bike was completely stripped to the point that when you push the left side crank arm, the right crank moves and you can see the bottom bracket lock move out the frame. The ...
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1answer
43 views

Crank tool threads for a BodyGuard R6X

I need to replace a circuit board on my Bodyguard R6X exercycle. Bodyguard sent me the circuit board but little else with respect to information/instructions. I need to pull a crank so I need to buy a ...
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3answers
137 views

What determines crank length?

Without getting really technical what determines the length of the cranks that you would use on your bike? I was wondering if longer cranks without being ridiculous would act as a fulcrum and make ...
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0answers
123 views

5 arm cranksets versus 4. Which is better and why?

I'm looking to buy a Sora triple crankset. Shimano make two types one has 5 arms and the other only has 4 arms. Which should I get and why would that be a better choice? I'm a slow-ish rider. I'm 50 ...
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1answer
143 views

Is it safe to bolt my single-speed chainring to the other side of the crank?

Background: I converted a 21-speed bicycle to single-speed by removing the derailleurs and installing a single-speed freewheel and crankset. The chainline is no longer straight, and I would like to ...
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1answer
83 views

Changing my crank on a track bike and it wont turn

I bought a new crank for my bike, when fitted tight the crank is stiff to turn as I think it is rubbing against the bottom bracket housing. Any advice on what to do, have I bought the wrong crank?
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3answers
319 views

How much of a difference would shifting from a (24/34/44, 14x28) to a (28/38/48, 11x34) configuration make when going downhill?

I currently have a Proton MTB with a 24/34/44 crankset and a 14-28 cassette. I have found the configuration to be lacking when going downhill: The front chain ring doesn't feel stiff enough on the ...
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1answer
117 views

Crank power meter incompatible with my bottom bracket

I have received a 4iiii crank power meter 170mm length that I can't install on my Merida trainer bike because it has square taper bottom bracket. What would be the cheapest way to have it installed? ...
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3answers
386 views

Minimum chainstay/crankset clearance

I have just finished to assemble a track bike (Cinelli Mash Parallax with Sugino DD75 crankset). Here is a picture of the distance between the right chainstay and the crank spider. I am anxious by ...
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1answer
313 views

Is there such a thing as a 25mm crank puller?

I have a BMX with a Primo Pro crank on it that I need to remove. The thread in the crank arms that the crank puller would normally screw into has 25mm diameter but I only seem to be able to find 22mm ...
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106 views

Which way does this ring go on the left crank of this Shimano deore hollow tech external bottom bracket crank?

On the inside of the left crank there is a small ring. The picture shows where the ring is meant to go. The ring is smooth / flat on one side. The picture shows the flat side which seems to have been ...
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1answer
187 views

Replacing FSA Omega BB30 with SRAM Force 22 BB30

following my recent post about the problem with FSA Omega BB30, I was advised to throw it away and go for a new one. I've done some research and decided to upgrade with SRAM Force 22 BB30, already ...
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2answers
289 views

FSA Omega BB30 spindle comes out of drive-side crank

I have a Cannondale CAAD Optimo Disc Tiagra that came with the FSA BB30 bottom bracket and the FSA Omega BB30 50/34 crank set pre-installed. A couple of weeks ago I noticed that the chain started ...
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2answers
153 views

Can I setup my road bike, mountain bike, and fat bike with the same set of shoes with MTB SPD cleats?

Can I setup my road bike, mountain bike, and fat bike with the same set of MTB SPD cleats? Basically I have 3 bikes with VERY different cranksets and Q-factors that range from 148mm to 164mm to ...
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2answers
2k views

What type of crank fitting is this?

I have an old road bike I want to get a single speed crank for but don't know what fitting the bottom bracket has.
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2answers
2k views

How to find replacement crank arm?

recently the crank arms on my Nishiki Colorado Comp 27.5 bike failed. I must’ve struck an obstacle with my pedals during my ride yesterday, because on the way home I noticed the right pedal was bent ...
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2answers
270 views

Quarq Dfour Fit Problem

I recently buy my first Quarq Dfour power meter to replace my crank Shimano Ultegra 6800. but I have the problem that the quarq spindle its too short ( 106 mm quarq vs 109 mm shimano ultra ). I don't ...
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1answer
374 views

Correcting the chainline on triple crankset with chainring spacers

I have Marin Four Corners bike with 3x9 Sora crankset (most likely FC-R3030) for which chainline is not given on Shimano site, but I've read all road cranksets have 45 mm chainline. I would like to ...
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2answers
400 views

Is it possible to mix the rings in the crankset?

I wonder about such setup as buying 48/36/26T crankset and then replacing the smallest (26T) chainring with 22T one. What I am afraid of that I would get quite significant 14T in difference and when ...
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2answers
174 views

Ultegra 2X cranks with M8000 group and 11-42t cassette?

Will an Ultegra 50/34 front crankset work with a Shimano XT M8000 Shadow+ 11 Speed Rear derailleur and 11-42t cassette?
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1answer
124 views

Truvativ 1x front chainguide - what's wrong with this?

I've been asked to inspect and fix someone's bike. Its a heavy full-suspension Kona "Stab Deluxe" downhill monster from 2006. The main fault is that the chain gets stuck between the front chainring ...
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1answer
98 views

Changing crankset

I'm new to mtb and have just purchased and waiting delivery on a Giant Stance 2, I would like to convert to a 1x9 with a smaller crankset, would I have to adjust my chain to suit a smaller single ...
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2answers
306 views

Alfine crank 1x9 setup, spacer issue

I'm currently rebuilding a 1992 Kona Cindercone as a 1x9 commuter. The rear spacing is 135mm and the bottom bracket shell is 68mm. I've mounted a alfine crank on it and remove the spacer that what ...
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2answers
542 views

Minimum space between square taper crank and bottom bracket

I upgraded to a new square taper crankset on a single-speed drivetrain and now the gap between my crank and the bottom bracket is bigger. That's because the cranks taper shape is different from the ...
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2answers
298 views

Andel crankset, BB axle length and chainline

I was planning to buy an Andel Standard Track crankset. It uses 110mm axle bottom bracket, but the stock bracket on my bike is 103mm. Will this mess up my chainline?
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1answer
76 views

Scott Addict R2 2008 crankset replacement

I want to replace crankset on my Scott Addict R2 2008. Current crankset is Dura Ace 7800. If I looked correctly then currently I am using BB SM-BB71-41. New crankset will use BB386EVO. Which BB do I ...
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1answer
347 views

Chainring bolt stuck in 105 FC 5800 chainring

See my update at the bottom of the question When installing my 4 bolt Shimano 105 FC 5800 chainrings on a modified FSA Gossammer Crank (TEAM ZWATT ZPIDER) I first test fitted the chainrings with ...
3
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1answer
125 views

What is this crank part called?

I recently had a Shun SS-8001 crankset fail. When taking it apart, I saw that the right pedal has a sort of stop ring that prevents the pedal, presumably, from unscrewing itself: Now I need to find a ...
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1answer
326 views

Is an SLX M7000 crankset compatible with the rest of my drivetrain?

I ride a Comencal Meta HT AM Origin. Unfortunately I need to buy a new crankset. I’ve been thinking about Shimano SLX FC-M7000 34-24T with a new bottom bracket, BB-MT800. Do you know if that ...