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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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4answers
5k views

Cause and diagnosis of wobbling crankset/chainring

I was replacing the chain recently. When spinning the crank I noticed that the chainrings are slightly wobbling along the axis. I was able to see the wobbling with my eyes. First check I kind of ...
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1answer
165 views

Replace truvativ crank

I have a Shimano UN55 square BB. Within about a month of buying my new bike the Truvativ crank came loose and is essentially too rounded out to salvage. Any suggestions on an alternative crank to go ...
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1answer
131 views

Changed chainset, bottom bracket, wheels and cogset and find these parts left over, and the rear wheel clicking?

I just changed the crankset, bracket, wheels and cogset (my first bike repair obviously) on my specialised tricross, and after my victory tea realised I had these three bits left over, and not sure ...
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1answer
824 views

Must replacement crankset have the same number of teeth?

I have a Giant Boulder 520 (1996) and I am upgrading it bit by bit. I bought a new Shimano 7 speed cassette 11-28T. Now, I want to replace my crank set, however I do not know which size to buy. Does ...
2
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3answers
127 views

My chain slips despite new parts and tuneup

I use my bike for commuting, and so my knowledge of bikes is enough to make to work and back. I have a trek 4500 mb. I purchased it used, and from the very first day I have had this issue where the ...
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2answers
2k views

Fixed Gear crank arm slips

The crank arm on my fixed gear "slips" when I put large pressure on the pedals like when I take that first pedal to get the bike moving or pulling up hard on my toe straps to slow down. The slip is ...
2
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1answer
75 views

Can I add spacers to my cassette and crank to fit 3" tyres?

Can I add spacers to my cassette and crank to fit 3" tyres? The chain rubs on the tyre. I’m running a hope hub with SRAM 8 speed cassette and saint cranks. Can I just buy spacers to pull the cranks ...
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0answers
481 views

Compatible crankset for my singlespeed

i am planning to replace my current crankset and BB with this: http://www.jensonusa.com/Cranksets/Race-Face-Ride-1X-Crankset?cs=Blue Would like to know if this compatible with my bike. Currently ...
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3answers
257 views

Measuring chainline without cranks?

I just bought a 1970s Peugeot Mixte UE-18 for $10 at my local bike co-op. It's in great shape, but is missing the bottom bracket and cranks. I'd like to upgrade to a cotterless crankset. However, I ...
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3answers
1k views

Crank extractor not screwing in properly

I'm trying to insert my crank extractor into the crank of a square taper (Shimano Tourney). It won't really screw in properly. On several attempts it will go in a little bit (about 1 or 2 mm) and ...
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1answer
171 views

Will this all fit together? [closed]

Shimano BB-UN100 Square Taper Bottom Bracket 68/122 BSA Sealed Cartridge BB Sram / Truvativ PressFit BB30 /PF30 to BSA Bottom Bracket Adapter And maybe I need something else? Please help! Ordered ...
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2answers
1k views

Bottom Bracket compatibility?

I have an older Wabi Classic cycle which comes with TH Industries BB-7420AL 68/103 that seems to creak. I believe its called squared tapered. Its a single speed. Missing Cranks I want to change the ...
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1answer
604 views

Wobbly bottom bracket on Radford, need guidance to replace

I have an aluminium frame Raleigh bike that's been stuck at the back of my garage for a few years now. It has a wobbly bottom crank. I assume the bearings have gone, but A; I don't have the tool to ...
2
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2answers
1k views

How does one upgrade a bicycle?

I am a total bike novice, I can ride them but have never done much as far as maintenance. Recently, I got my old bike out of storage, it is a 1991 Trek Multitrack 700, and I want to know if I can "...
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1answer
88 views

Will this crankset be a good replacement

I removed my 3 ring crankset from my old mountain bike and it was welded together so I have to replace the whole thing. The bottom bracket is square taper. The chainrings were 48, 38, and 28 teeth and ...
3
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1answer
180 views

Can I use adapter to adjust Q-Factor like curved cranks?

So I just picked up an FSA power meter that is 386 EVO compatible and I replaced my FSA crank , but then realized that my original FSA crank is curved and the power meter crank is straight so it hits ...
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1answer
154 views

Clicking noise gets better with water

So here's my latest video checking the casette, you don't have to watch it all. This is the old video when running: My question is ...
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1answer
38 views

is a SRAM XX 1 crankset compatible with an XT 8000 BB

can I put a SRAM XX 1 2x10 crankset into the BB of an XT 8000 (also 2x10)
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1answer
212 views

Nukeproof Pulse SRAM PG-1030, 11/26, 10-speed to 11/36t, 10-speed

I'm a bit of an amateur but looking for advice at the moment. My cassette is 11-26t which is pretty hard for me (not that fit). I'm looking at changing to the 36t which I can see would be bigger, if ...
0
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1answer
1k views

Converting 3x to 1x Drivetrain

I have a new crankset (link) on the way as well as a chain guide/bash combo from OneUp. I am getting a 36T narrow-wide chainring also. The bike I'm working on has a SRAM 3x9 drivetrain with 11-34 ...
2
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1answer
394 views

Friction in newly installed bottom bracket

I could do with some help on a bike build... I've installed a BB86/92 Trivatuv pressfit GXP bottom onto my Production Privee Shan frame. I used a headset press and everything seemed to go smoothly. ...
0
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1answer
145 views

use with SHIMANO 105 FD-5504 Front Derailleur on crankset 26/36/48t [closed]

Can I use a SHIMANO 105 FD-5504 Front Derailleur with Crankset 26/36/48t? My Cogset Shimano HG-50, 11– 32t
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0answers
833 views

Is Shimano 36/24 double crankset possible?

I'd want to exchange my triple crankset with double. After playing with gear calculator and testing some double setups, I came to the conclusion I need 36/24 gearing. I have 10 speed drive, so I'm ...
3
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1answer
714 views

Square taper crankset develops play after changing bottom bracket

After replacing a bottom bracket with square taper I repeatedly have to tighten the screws that fix the crankset (on each side) to the bottom bracket axle or otherwise I can feel sometimes a slight ...
2
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1answer
792 views

What is causing strange resistance when pedalling forward?

I noticed today a strange resistance when cycling home. I've done some investigating and by removing the chain have isolated the issue to the bottom bracket area. When I move the pedals forward there ...
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3answers
3k views

the thread for screwing in the pedal has been stripped on right side. Any way to avoid buying a whole new crank? [duplicate]

Put a new pedal in, and followed advice not to screw it in too hard. Unfortunately, I made it too loose... and the thread on the right crank is now almost completely stripped because the pedal was ...
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2answers
173 views

When I pedal they keep shifting forward randomly but not moving the bike forward [duplicate]

When I try to pedal fast or hard or just put any sort of pressure to move the pedals foward they seem to give out, randomly jerking forward and not making the bike wheel move. https://drive.google....
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1answer
151 views

Help identifying problem with bike crankset/bottom bracket

A few days ago I took a fall going down hill after hitting a large pothole. I fell on my right side, which if you didn't know is the side that contains the chain and gears on most bikes. Looking at my ...
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1answer
317 views

FSA MegaExo crank tensioner bolt, can I use any 12mm bolt?

I have a FSA MegaExo (which just came with a bike I bought 2nd hand). As usual the bike needed service because the previous owner did not do anything before selling. Crank tensioner bolt FSA 12M was ...
1
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1answer
2k views

My new crankset is stiff

I just recently bought a new crankset that included the bottom bracket, a english threaded 68 mm bb. I installed the crankset and for some reason its stiff, it moves but doesn't spin at all, all it ...
2
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2answers
2k views

How often do you need to grease the crank?

Haven't done maintenance on my bike in years. Recently cleaned it up and repaired some spokes. Greased the front and rear wheel bearings and degreased the chain. Looks good but only thing didn't do ...
3
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2answers
147 views

Is my bike capable of swapping for longer cranks?

I have a cross-check at 52 cm with a casual drop handlebar set up. It's a relatively square frame compared to other bikes I've ridden in the past. The cranks feel very small, like I'm not using my ...
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0answers
192 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). ...
5
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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 ...
3
votes
2answers
523 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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2answers
914 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 ...
2
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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 ...
2
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2answers
457 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
696 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 ...
1
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1answer
208 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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1answer
70 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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3answers
3k views

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
193 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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1answer
88 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 ...
4
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1answer
258 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 ...
2
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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
61 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
582 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 ...
1
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1answer
394 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....