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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193 views

Sudden, loud creak from BB area

I was on my way to a meeting, pedaling along, when suddenly there was a loud creak. I stopped, visually inspected the bike, manually revolved cranks both ways, and made sure nothing was sticking into ...
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1answer
2k views

How to remove and find a compatible chainring for my FSA Comet 1x10

I currently have a 30 tooth chainring on my Devinci Kobain. The gearing is a little too tough for my current fitness level. I am considering putting a smaller chainring on it (as per this question). ...
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2answers
2k views

Advice for buying a new crankset for my bike

Long story short: I recently bought a second-hand bike (good condition), but the guy who sold it to me screwed the pedals in the wrong sides. After two months of riding, the thread on the inside of ...
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2answers
541 views

How to tell if Hollowtech II bottom bracket cups are aligned?

I've heard all over about how important it is that you face a frame before installing a Hollowtech BB, as the cups not being aligned could be the difference between your BB lasting 1k and 10k miles. ...
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997 views

SRAM Red 53/39 10spd rings and 172.5 crank work with 11 speed cassette upgrade?

I want to upgrade my 10 speed to 11. Will my SRAM Red 53/39 10spd rings and 172.5 crank work with an 11 speed upgrade? Looking to upgrade to SRAM eTap with the "kit". I understand the need for a new ...
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1answer
158 views

Replacing BB and Chainset only?

Presently my bike has an FSA 19mm piece of junk BB and omega chainset. As this is a unique system it has no compatible parts. The bike uses Tiagra 4500 9 speed for the rest of the components. If I ...
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2answers
488 views

Chainring for a Shimano FC-CX50

I have a 2013 Scott CX Team Cyclocross which has an FC-CX50 Crankset. Unfortunately, I cannot afford a road/triathlon bike right now and I have been using this for triathlons. I now have road tires ...
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0answers
731 views

Stages FSA BB30 Power Meter on Cannondale SI BB30A Crankset

I have a Cannondale CAAD12. It has a Cannondale SI crankset. The frame's bottom bracket is BB30A. My question is, can I fit a Stages FSA BB30 Power Meter on the non drive side? My concerns: BB30A ...
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1answer
244 views

SRAM GX1 comparability with double crankset

I am considering purchasing a bike with SRAM's GX1 11x1 gearing but I would like to switch it to use a double crankset. Is the SRAM GX1 rear derailleur and cassette compatible with a dual crankset? ...
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72 views

Will there be compatibility problems for crankset and bottom bracket for vintage motobecane?

Most concerned about compatibility of bottom bracket/crank area. Not sure of model and year, any ideas? Some specs...1020 tubes,forks and stays, weinmann 610/vanqueur 999 ...
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Chainring rubbing frame after tightening cranks. What should I change?

Bike details: Singlespeed (steel) Square taper threaded BB 58/19 ratio (hence huge chainring rubbing the frame) 130mm bcd 5-bolt crank/chainring Mileage on cranks: several thousand km in all weather (...
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2answers
204 views

Tighten crank arm on Reynolds 531

Hi all, I've got a Dawes Imperial (Reynolds 531 frame) and the crank arm is loose. None of my standard impact drivers fit. Does anyone know what I need to use to tighten it? Thanks, Tim
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90 views

Bicycle crank conversion

So I have this crank that I want to convert. It has three crankwheels and I don't expect myself to ride on the two of them. I have found a second hand crankwheel from a friend that I want to put on so ...
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1answer
275 views

How can one remove this chainring?

I have a crank and chainring setup pictured below, running as a 1x with a chain guard where the outer ring would be. I am trying to remove the chainring from the crank and am having trouble. The ...
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2answers
5k views

road bike - how to choose chainring (crankset) and cassette size?

I'm going through a 1st bike build (road bike) and looking for some advice on choosing chainring (crankset) and cassette size. I'm pretty much decided on the Shimano Ultegra Groupset (6800), which I ...
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1answer
64 views

Crankarms trek slash 9 2014 [closed]

I need to change my crankarms, because mine are broken. But I don't know which one to buy. I have a trek slash 9 2014. Thnx
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3answers
599 views

1x drive conversion

I haven't been consistently riding on a trail in a number of years, and I'm a little overwhelmed by the options. So if I could receive a bit of info and an opinion or two it would be greatly ...
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1answer
414 views

Upgrading From Ultegra 6600 to 6800 Help

My Ultegra 6600 shifters need replacing. My thought was to replace it with a new 5-piece 6800 set including shifters, front derailleur, rear derailleur SS, an 11-28T cassette and obviously a new chain....
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2answers
1k views

Drivetrain replacement on fixed gear

I have been using my 2008 langster (new york edition) as my main form of transportation for a very long time. The drive train has thousands of miles on it, will occasionally slip links when going ...
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7answers
1k views

Would variable crank arm length be beneficial to a rider?

I was thinking it would be cool to have a bike where the crank arms can be adjusted automatically "on the fly", depending on load. If that is not so safe then maybe a manual adjustment that the ...
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2answers
522 views

How to properly gear compensate for short crank arms?

Is there a linear relationship between gearing and crank arm length? For example, on my multispeed bike, my favorite gearing is 34/20 which is 1.7 and with 26" tires, that is 44.2 gear inches but I ...
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1answer
371 views

Replacing 170mm cranks with 175mm

I have two bikes and one has a broken crank. The broken crank is 170mm and the cranks on my other bike are 175mm. Would I be able to use the 175mm cranks on my other bike to replace the cranks on the ...
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1answer
10k views

Difference between Shimano HG and XT cassettes

I'm looking to build a 1x10 commuter bike. Want to decide between these two cassettes XT series: http://a.co/d4ez069 HG series: http://a.co/j4z8KFn How do they differ? I still haven't bought ...
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2answers
927 views

Is it viable to use cottered cranks?

I'm restoring a Bianchi Sprint (~1975). It has a cottered crankset/bb. I was originally planning on replacing them, because we all know that cottered cranksets are junk, right? Well, they have a ...
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1answer
99 views

Crankset arms length and chainring for 5 year-old

My five years old little girl rides a BMX micro mini bike with 18 x 1" wheels. The original bike came with 130 mm crankset length, 38 tooth chainring and 14 tooth rear cog. However, looking at her on ...
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76 views

Gears keep auto dropping esp in hills

My bike is 10 years old and has Shimano ultegra triple crankset. Being my first road bike, I assumed it was my skill when the gears would drop on their own or kick the chain off. I took it in to shop ...
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1answer
172 views

Is SLX FD 675-B front derailleur appropriate for my bike?

It seems I've made a few 'tiny' errors when choosing components to upgrade my bike. The biggest issues I'm facing at the moment are crankset and front derailleur... Bike is Eyble Psych 4 Black ...
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1answer
2k views

How to identify where a creaking/squeaking sound comes from?

There is a creaking/squeaking (halfway between each, I would say) sound in my bike. Here is what I know so far: Happens during pedaling when the left leg goes down Only when I press sufficiently hard ...
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4answers
6k views

There is a grinding feeling at the end of my pedaling at high speed

I bought a road bike about 6 weeks ago, but I just only realised it now that at the end of my pedaling (when either foot pushes down), I can feel a bit of a drag/friction/grinding on either pedal. I ...
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1answer
898 views

3x8 to 1x8 (with expansion to 1x10/1x11 in the future)

I plan on converting my MTB fron 3x8 to 1x8. I plan on leaving the rear derailleur as it is, or I would prefer not to upgrade it to save money. My current crankset is a 3x8 square taper crank, I ...
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1answer
62 views

Handling Stability Parameters [closed]

I'm building my first bike: probably steel (easy to work with). 2X26" road tires. Full suspension. Will be used on sandy dirt roads, and paved streets with moderate incline. Want hands free option, ...
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1answer
430 views

Restoring Aluminum Cranks

Is it all right to strip and then anodize (at a shop, I suppose?) aluminum cranks? I'm trying to build a bike and I saw second-hand cranks on eBay. They look like they're fine except for the ...
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2answers
3k views

BB and Crank compatibility with Pressfit 86.5

The bike frame I'm buying says that It is Pressfit BB86.5 (road), What are my options in terms of bottom brackets and cranks? I would like to get a BB30 Sram Force crank is this possible?
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2answers
955 views

Is it possible to convert Deore Crankset FC-M612 to single speed?

I would like to change this crankset to singlespeed, it has 96 BCD so I was thinking to order bash guard replacing the 40t chainring. The bashguard is this one http://www.wolftoothcomponents.com/...
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1answer
259 views

Can this crank arm be saved?

Here's my drive-side crank arm, from the inside of the chainrings: First off, those are not chain ring bolts, they are rivets, argh :) It looks like the crank arm is fixed to the middle of the three ...
2
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1answer
786 views

MTB crankset change, large ring from 42 to 48 teeth

I have changed my front crank set from 42 to a 48 tooth ring. I am having difficulty setting up the front mech. The problem I am having is that the (don't know the name) tail? the box frame bit at the ...
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3answers
953 views

Am I using the crank extractor correctly?

I have this X-Tools crank extractor: X-Tools crank extractor tool for removing standard Square Taper and ISIS type cranks. Here's the end that pushes against the crank: Here's my crank: (it's ...
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1answer
4k views

How to pick a crank puller?

I need to get a crank puller for my square-taper spindle. There are several available on eBay and Amazon. What information do I need -- about the puller, my bottom bracket and my crankset -- to pick ...
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678 views

When did Square Taper Bottom Brackets retire from racing?

I haven't been able to find any hard data on this. I have the impression that most top-end bikes made the switch around the year 2000. It would be great if I could get an answer for both of these: ...
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1answer
889 views

Upgrading my Schwinn [closed]

I know I probably should not upgrade my Schwinn, but I have had it for a year and a half, got it from Walmart and no problems. I want to upgrade the parts on this the bottom bracket, the cranks and ...
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2answers
933 views

Shimano Dura Ace FC7900 crankset with 11 speed group?

I have a Dura ace FC7900 crankset and was wondering If I can use it on a bicycle with ultegra 11 speed group? The crankset I have is this one: http://www.bike-discount.de/en/buy/shimano-dura-ace-...
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1answer
1k views

Do crank arm pullers vary in sizes or there is just one size?

Just want to confirm if there are different types of crank arm pullers? I'm trying to order one and the contact person is telling me that he has one but for a road bike. Now I'm confused I thought ...
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3answers
154 views

Crank arm fell off

The crank arm on my bike fell off. How does one re-attach it?
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3answers
1k views

Native BB30 crankset or adapted Shimano?

I have a bb30 frame, and I need to change my crankset. However, I am baffled by the reviews online if it is better to get a native BB30 crankset, like SRAM Force 22, or an adapted Shimano Ultegra 5800 ...
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4answers
1k views

Strange long squeal sound when I pedal hard - how to track this down?

It's kinda hard to describe but there's a sound coming from somewhere on the bike when I pedal hard - I can't figure out where it's coming from. It's sort of like a high pitched pig squeal. It started ...
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1answer
299 views

Left crank cracks when the left pedal is pressed

My crank has a little slack and cracks more and more when I pedal, but only on only with the left pedal. What could be the cause(s) of this ? Video of the loose crank: ...
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1answer
211 views

Replacement crankset SRAM 3x for 10 cogs

I recently changed the cassette/cogset and chain on my mountain bike (10 cogs, SRAM 2011 or 2012). The chain rings are worn out and when I stand on the pedals the chain slides pretty unpleasantly. To ...
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1answer
190 views

Crank set removal tool too small

My crank set removal tool is too small to screw into the arm. You can see the black space in-between the tool and the crank. Where can I buy the proper sized tool? Seems like all crank set removal ...
3
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1answer
978 views

135mm rear spacing with road crankset?

I am about to upgrade my CX bike from the old 105-5700 (10spd) to Rival 22 (11spd). I have all the parts already and while reading the crankset/BB (GXP) manual I noticed the following: Use the ...
4
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1answer
145 views

How do I remove this crank?

I'm a novice in the process of restoring a 1987 Raleigh Equipe. I'm managed to strip the rest of the bike but haven't attempted to remove the crank yet, can someone advise me on what tools I would ...