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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6
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3answers
1k views

Crank arms are not parallel to each other. What could have caused this?

It is a cottered crank. Crank arms themselves don't seem to be bent. It is a non-cartridge style spindle. Any ideas as to why they are not lining up?
2
votes
2answers
589 views

What are the advantages of 4 arm cranks for road bikes?

Are 4 arm cranks the future for road bikes? What are the advantages?
0
votes
1answer
18 views

Chain skip options on vintage 'frankenbike'

I have a late 80s Bianchi Volpe which came with Sakae Ringyo SX cranks and bb, SunTour barcon shifters and derailers, and SunTour chain. The freewheel was aftermarket 7 speed and never rolled well ...
4
votes
2answers
54 views

10 / 11sd compatibility

I own a road bike with a SRAM Red 10 speed 110 BCD crankset and chainrings. I am upgrading the bike to the SRAM 11 speed shifters, cassette, chain and derailleurs. Do I have to buy a whole new SRAM ...
0
votes
1answer
35 views

Need a replacement 42 ring for an Ultegra 9 speed triple

I am replacing my chainrings on a Shimano Ultegra triple crankset. It is 9 speed circa 2003. I can't find a replacement 42 ring as I don't think they make them any more. (I have the replacement 30 and ...
4
votes
1answer
30 views

Crankshaft snags and loses resistance while cycling

I have a hybrid (18+ years old) that I use for daily commuting which has developed a problem with the cranks. Every so often (perhaps 10% of the time) when I push down on either crank arm after ...
0
votes
1answer
73 views

Changing the entire chain gear mechanism

I have a Lapierre shaper 100. I am looking to change my entire chain mechanism as some of these parts need to be changed. I have selected my components, and I am hoping you can tell me if these ...
2
votes
1answer
61 views

Can I use a SRAM X0 Crank with Shimano XT chain rings?

I have a SRAM X0 crank on my MTB, and I want to buy some Shimano XT chain rings from a mate. Will they fit? Or is the BCD, Spider shapre, bolt size etc incompatible. All are 10 speed.
3
votes
2answers
59 views

Converting triple crank to single or double

I got triple crank (44-32-22) and 3x9 speed drivetrain. What will I need and is it possible to remove some of the chainrings and convert the crank to single or double? Will I need new parts or ...
2
votes
2answers
172 views

Bike feels like it is getting stuck when I start pedaling or increase pressure as I go up hills

My bike feels like it is getting stuck when I start pedaling or increase pressure as I go up hills. Of course, I checked to see if the brakes were rubbing but they are completely free of the wheel. ...
3
votes
3answers
75 views

What can I do to stop my front dérailleur rubbing against the crank arm?

I recently changed the crankset of my Cannondale Synapse 5 from the stock FSA Gosssamer crankset to a Rotor 3D24 crankset with power2max power meter. This was a bit of an iffy modification to make - ...
5
votes
3answers
827 views

Combining Shimano RS500 crankset with Stages Shimano 105 5800

I've been thinking about getting a power meter for a while now. I finally decided I would get one, but now I realise that Stages only starts at the Shimano 105 level. I currently have a Shimano RS500 ...
2
votes
2answers
185 views

Replacing crankset on early-'70s Motobecane 10-speed

I need a replacement crankset for my Motobecane Nomade 10-speed road bike (early '70s model), but am not quite sure what I even have at the moment and, once I know what I can use to replace it with, I ...
3
votes
1answer
99 views

Will this power2max power meter be compatible with Cannondale Synapse?

I have a 2015 Cannondale Synapse - specifically, this one: http://www.swiftcycles.co.uk/334/products/2015-cannondale-synapse-carbon-105-6-road-bike.aspx. I would like to add a power meter, and ...
2
votes
1answer
86 views

Changing Crankset on a bicycle

I have a fixed gear BTwin My Bike White. I need to upgrade but the resale value is too low for it. So I was thinking of adding gears to it which might click the real deal for me. Can I convert it ...
1
vote
2answers
191 views

How to change 2x11 to 3x11 on mtb

Hey I was wondering how you would change a chainset from 2x11 to 3x11 on a Carrera Fury (SRAM components) Thanks
3
votes
2answers
143 views

Can you use a wide range 11-42 cassette with a double crankset

Can you use a 10 or 11 speed wide range (11-42, 10-42, or 11-40) cassette with a double crankset? I know these wide range cassettes are typically built for a 1x setup on a mountain bike, but is ...
0
votes
1answer
452 views

Right crank (Drive side) on the left?

So, I wonder what happen if I replace my left crank with another right crank (either Square tapered or ISIS splined wouldn't matter). What is the disadvantages apart from: 1) the pedal thread ...
12
votes
4answers
755 views

Why use multiple materials on chainrings?

Why is it that on a typical mid-level road triple crankset, the outer rings (larger rings) will be aluminum, while the inner ring (small ring) is chro-mo? It seems to me that if aluminium was good ...
1
vote
1answer
158 views

BCD consideraton, does it matter?

I currently have a Shimano 5700 10 speed double 53-39 t crankset with BCD of 130 mm ...
4
votes
3answers
168 views

Could I use a 30 tooth chainring with my current crankset?

a few months back I installed a 34 tooth narrow-wide chainring in my Santa Cruz Bronson. I decided to install the 34 tooth chainring, basically, because I couldn't fit any other smaller chainring ...
1
vote
1answer
70 views

Shimano 7400 crankset

Can I use shimano 6700 chain rings on my shimano 7400 crank set? I am upgrading the drive train and would like to keep the crank if possible.
4
votes
1answer
90 views

Are pedal washers necessary on a carbon crankset?

I'm wondering if pedal washers are necessary, or even recommended, when riding with a carbon crank, in order to avoid damage to one's crank arms? The main reason I ask is because I prefer to ride ...
2
votes
4answers
158 views

Sound when pedalling

I have got a new mountain bike(hardtail wtih powerspline bb) and it is on 100 kms. When I push the pedals I hear little sound from the left side. It is only from the left and I think it can be the ...
3
votes
1answer
197 views

Upgrading crankset on mountain bike - what are my options

I have a cheap old rockrider 5.0 mountain bike also known under the btwin brand. Bit by bit I'm trying to improve it's performance as a road commuter bike. So far I've changed the rear wheel to a ...
3
votes
2answers
229 views

Can pedals not fit the crankset?

I just ordered and received my bike with FSA Tempo CK-200 crankset and Shimano Saint MX80 pedals (really good deal). Just received and it seems that they do not fit with crankset! The spindle on ...
2
votes
1answer
252 views

Is it possible to change a Shimano FC131 crankset's chainrings?

I'm going to buy a bike wtih this crank, but I want to change the bigger ring. This is one of the lower end shimano cranks -- so I am worrying that the chainrings may not be replaceable. Thanks ...
1
vote
1answer
91 views

What kind of crankset to get for this bike?

I have a Schwinn Volare 1300, bought from here. So the pedal on my crank arm came off today, when I tried to screw it back on I noticed that the hole where the screw goes has become smooth and does ...
13
votes
7answers
22k views

How to remove a crank arm with stripped threads?

A friend called me up yesterday after a mis-adventure during his attempt at a bottom bracket overhaul. He stripped out the threads on the (left) crank arm while using a Park crank puller. In a pinch, ...
-1
votes
2answers
308 views

Can I mix a SRAM Crankset with everything else Shimano? (Derailleurs, Cassette etc) [closed]

I was wondering if I could swap a Shimano crankset with a SRAM crankset without any problems I also know about different BBs like Octalink and chainring size differences
1
vote
3answers
129 views

SRAM Force 22 chainset in an otherwise 10-speed SRAM setup

I notice that SRAM web site still lists "regular" 10-speed Force chainset as one of their products. However, my attempts to find it for sale online came up with almost nothing. It seems to be "barely" ...
7
votes
3answers
6k views

What is the effect of changing length of crank arms?

There are some length options for the crank arms - like 170mm, 175mm. What is the difference for the rider? In which way does it effect the commute? Tried looking at Selecting the right crank ...
2
votes
2answers
68 views

How do I know when to replace/maintain the crank?

What are the warning signs that a crank (not the chainwheel etc, but the crank itself) is worn out and needs to be changed, or removed and cleaned? I have never changed mine in 5 years or so, because ...
9
votes
10answers
48k views

Why does my bike make a noise when I pedal hard?

When I pedal forcing a little with my right leg, the bike makes a noise that I don't know how to describe. I'll try to do it. It's like: a short "ting" a tiny bell if a small rock hits the down tube ...
5
votes
3answers
239 views

High-end components [closed]

I'm wondering if anyone knows of any high-end components that are like Paul components. Not the pro-peloton stuff like SRAM and Shimano, but the, dare I say hipster components. I'm looking for ...
2
votes
1answer
46 views

Cannondale Trail SL 3 component upgrades

I have a 2013 cannondale trail SL 3 and some parts have been worn and look beat up so I'm planning to replace them. I was wondering if I can use a 10-speed rear derailleur on a 9 speed cassette and ...
3
votes
3answers
87 views

Crank axle cracked on 1972 Centurion, looking for guidance on how to replace

As I said, I have a 1972 Centurion. Today while riding I hit a pothole as I was coming down on my left pedal. I immediately felt like my pedal was moving around in ways it shouldn't. Stopping to look, ...
3
votes
1answer
39 views

Can I replace the crank on a Raleigh m20 with one from a Schwinn Ranger?

I have a Raleigh m20 mountain bike with a messed up crankset. The only other crankset I have is from a Schwinn Ranger. The two cranksets look like they are the same size. Is it possible to install ...
0
votes
1answer
57 views

Pedals not turning together

I have just tried to tighten up the nuts at the end of my crank but for some reason the pedals dont work in unison and now the left and right pedals are at a 90 degress angle instead of 180 and im not ...
2
votes
1answer
86 views

Can I swap out an Ultegra 6750 crankset with a 6700?

I want to have the ability to change chainsets depending on terrain. I currently have the compact Ultegra 6750 chainset and am after a 6700 53/39 for the flats and races etc. Are the axels the same ...
26
votes
13answers
106k views

Creaking from cranks/spindle. How to fix?

Recently the cranks on my bike started to creak. I checked with my usual "bike-bible" Park Tool. They recommended dis-assemble, lubricate, re-assemble. So I did that. Remove cranks. Remove spindle. ...
4
votes
2answers
54 views

What direction are the threads on Ultra Torque bearing cups?

I need to remove the bottom bracket bearing cups from my 2010 Athena groupset. Do they both unscrew anti-clockwise, or is one side different (and which one)?
1
vote
1answer
156 views

Putting Shimano SORA STI Shifters on Touring Bike w/Deore Derailure

So I just bought the 2015 Fuji Touring Bike and it came with bar-end shifters. I do a lot of city riding so having STI "Brifters" is really convenient in hilly city traffic. The problem is my Fuji ...
3
votes
3answers
7k views

How to fix a stripped pedal crank

The threads on my bike's pedal crank just became fully stripped and the pedal fell off, though the pedal itself is fine. Is there any way I can fix this without fully replacing the pedal crank?
1
vote
2answers
240 views

what is the biggest chainring I can put on my mountain bike?

I am going to do a 'gravel grind' ride with lots of elevation gain and want to be able to keep up with the cyclocross bike riders. From what I understand they have 46/36 chainrings. My mountain bike ...
1
vote
1answer
61 views

Shimano XT with Campag Centaur crank?

I would like to use a Shimano XT group for my flat-bar disc-brake touring bike, but the XT crankset doesn't suit my touring needs very well. I would prefer having a 50/34 crank instead of the XT's ...
6
votes
2answers
129 views

Carbon crank with loose pedal thread

I have a FSA Carbon crank where the thread/bolt for my pedal has become lose and wobbles. In all fairness the crank has has 20,000KM on it. Can it be repaired, can I replace just the crank, or do I ...
2
votes
1answer
55 views

When pedaling forward my bike suddenly disingages and goes limp

My Ridgeback Velocity bicycle suddenly disengages and goes limp and loose when pedalling forward, similar as if I'm pedalling backwards.
1
vote
2answers
85 views

Chain rubbing on new derailleur and crankset

My bicycle is a Rockrider 520. I have replaced my front derailleur with Shimano Acera FD-M390 and my crankset with Shimano Acera FC-M391. But chain is rubbing inside of FD even when FD cable is not ...
1
vote
2answers
1k views

Crank is slipping freely occassionally when pedaling; occasional “clonk” sound

Crank is slipping freely occassionally when pedaling; occasional "clonk" sound-not sure where sound is coming from-crank is tight, no movement or looseness