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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Can I fit 3 x9 speed crankset to 3 x 8 speed cartridge

I have a Merida hybrid cycle fitted with Shimano XT Deore 3 x 8 speed (42/32/24T). The crank has a few worn teeth and I would like to replace with Shimano XT Deore (48/36/26T). The seller states this ...
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1answer
185 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 ...
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2answers
52 views

Changing '75 international to clip in pedals and shoes

I have developed foot issues because my stiff insoles don't do me much good on the bike, especially if I stand to go up hills. So I think I need to switch to clip ins with good stiff shoes (Bont ...
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1answer
410 views

How to remove crank arm with broken bolt on SRAM Omnium crankset

I apparently over-torqued the crank bolt and it made a loud snapping sound. Now the hex wrench just spins freely and so I can neither tighten nor loosen the bolt. How do I remove the (non-drive side) ...
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1answer
244 views

Loose axis of Shimano Deore FC-M591-S Hollowtech II

I noticed that the right arm (drive side) of the Shimano Deore FC-M591-S Hollowtech II is getting loose. The right side has the axis attached to it as shown in the image. When I take off the left ...
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1answer
158 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 ...
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3answers
226 views

Can I change my large chainring without changing the entire crank?

The bike I wanna buy has a 42/34/24 crankset and TX-50 FD, now I was wondering if I could install a 48t(or bigger if possible, do tell) ring upfront while keeping the rest (i.e transforming it to ...
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1answer
185 views

Can I fit a 105 crank arm (stages) to a Claris 2400 crankset?

I currently have a Specialized Secteur with a Shimano Claris 2400 crankset (compact). I'd like to buy a Stages power meter but they do not sell Claris crank arms. Can I simply put a 105 crank arm on ...
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1answer
357 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?
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127 views

Old bike - what can I use for crank replacement?

The LBS doesn't have anything in stock to replace the crank on this bike : What is this type of crank and does anyone still supply them?
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2answers
3k views

Will a 9 speed crank work with 10 speed groupset? [duplicate]

Will this SLX 9 speed crank work with newer 10 speed groupsets? It looks to me that 9 and 10 speed cranks are the same. Or am I missing something? Are the spaces between the rings different?
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1answer
157 views

What's this noise? Is it from my crank?

I have recently been riding bmx, racing to be more specific. I ride around my neighborhood a lot when im not at the track and have noticed this loud clanking noise. I didn't know where it was coming ...
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4answers
184 views

Loose pedal bent under pressure

I was riding home today (with clipless pedals; SPD) and noticed my ankle was twisting strangely with each rotation of my legs. I had just gotten to the top of a massive hill. I pulled off to the ...
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1answer
11k views

diference between 170mm 172mm 175mm crank arm length on road bike [duplicate]

What is best for which use, advantage, or application, especially for climbing.
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3answers
514 views

Replacing bottom bracket on 98 trek 820

I'm trying to replace the bottom bracket assembly on my 98' trek 820. The current one grinds and needs replacement. The bracket that came in it is a shimano bb-ct92. I've looked online and can't ...
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3answers
1k views

Can I use a Shimano 105 10 speed BCD 130mm 52t chainring as a replacement in my 9 speed tiagra triple crankset?

I currently run Tiagra triple 9 speed crank, 50/39/30 The BCD on the 50 being 130mm. I'd like to replace the 50t with a 52t to make it 52/39/30. I'm looking at a Shimano 105 52t chainring but it says ...
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0answers
25 views

How to switch from a double to triple crankset [duplicate]

What do I need to change out on a bike to move from a double to a triple crankset? In this particular situation the bike has STI shifters and a FSA Gossamer, 50/34 teeth crankset currently. But I ...
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1answer
248 views

What is the crank length on a Shimano Deore XT?

I have this bike: http://www.trekbikes.com/int/en/bikes/mountain/cross_country/superfly/superfly_9_8/ Frame Size is 17.5 Crank is: Shimano Deore XT, 38/24 I purchased a garmin edge. It asks for ...
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1answer
142 views

Peculiar feel when pedaling

I ride an early 90s Scott Unitrack CST with the original Shimano Deore drivetrain it came with. Same as this one. When pedaling, the right pedal has a peculiar feel like a sudden inward jerk at a ...
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3k 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 ...
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2answers
1k views

how many spacers do I need for a 83mm bottom bracket and a 142x10 hub?

I have a Zee crankset on a 83mm bottom bracket (downhill bike). The Shimano manual says to use two 2.5mm spacers on the drive side, and one 2.5mm spacer on the non-drive side. However, this presumes ...
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1answer
440 views

MegaEXO Omega BB and Hollowtech II crank compatibility?

I have a Giant TCX SLR 2 (2014) with a FSA MegaEXO BB and FSA Omega crankset (46/36). I just purchased a Ultegra 6750 crankset (50/34), can I run it on my existing BB? If not, what BB do I need? ...
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1answer
716 views

Replacement chainring compatibility

I have a Fuji Absolute 3.0 (about 2011) with a generic crankset. The triple chainrings are stamped with 'SAMOX'. It is a 30-42-52t set. I favour the middle chainring, which is now badly worn and needs ...
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4answers
843 views

Noticeable clicking from crankset or bottom bracket

A few days ago I began hearing a clicking noise coming from the crankset and I can also sense a slight hitch when the right crank is at its upmost position just when it's about to go down. The ...
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1answer
266 views

can you put a shimano XTR M980 175mm stage power meter on a XT M785 175mm setup?

I would like a stages power meter on my set up but cant figure out if the bottom bracket sizes are correct and if even the new crank will fit at all?
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3answers
194 views

Can I modify the gearing on a 2009 Jamis Aurora?

I have a stock 2009 Jamis Aurora. I'm looking to modify my gear set-up to make climbing hills with large loads a little easier on my knees, as I constantly find myself wishing I had one or more low ...
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1answer
4k views

Using a Sram 22 group with 10 speed crank

I have a SRAM Red 22 group set that has a standard crank (53/39), and I also own a SRAM Red 10 speed crank with compact chainrings. I'll be doing some climbing soon and would like to use the compact ...
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3answers
511 views

FSA Compact 50/34 Need better climbing

I have a FSA compact crank 50/34 with a 9-speed 12-27 cassette. I need better climbing ability for steep grades, not concerned with flat top speed. What should I do? What is the largest size cassette ...
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1answer
630 views

Chain not fitting chain ring

I just bought a 21-speed hybrid bike (Wal-Mart grade Schwinn) and to try to customize/simplify things (other bike is a fixie road bike), I removed the front deraileur and bought a new single-speed ...
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1answer
48 views

assembling brackets and front crankset: how many spacers and orientation

Recently I bought a Bull's Black Adder 1 26 Inch frame and quite some time ago got a present Shimano Deore Lx FC M-583 crankset (brackets included). I know they are not a perfect match, but still ...
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1answer
144 views

Can an IGH have the same maximum overdrive-ratio as a crank-sproket setup?

Is there an IGH that gives one the maximum overdrive-ratio that one might get with a 39-53T crankset and a 11-34T freewheel? If not, what is the mechanical roadblock in making one ?
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1answer
346 views

Will this crankset fit my bottom bracket?

I've got a 2004 Trek 4300 that I need to replace the crankset on. I was able to look up the bottom bracket size here and see that it's a 73x122.5. I'd like to buy this crankset but I'm not exactly ...
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2answers
704 views

Single speed crank compatibility

I am attempting to build a single speed bike for commuting from various spare parts. I'm unsure of what kind of crankset would be compatible with my frame. I have read from a couple sources that I ...
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1answer
234 views

Unbranded cranks vs FSA Vero cranks?

What is the difference between the unbranded-cranks found on the Motobecane- USA- Mirage Sport vs the FSA Vero cranks(sometimes LSC) on the Motobecane-Record or Grand Record? Are they basiclly the ...
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0answers
271 views

Low gearing setup for road bike with Shimano dual control

Question: What is my best bet for a crankset, given the following requirements for a road bike I am setting up: 68mm "English" thread bottom bracket Shimano STI "brifters", 2x10 (I already have ...
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2answers
187 views

Truvativ Crank housing

Im repairing a friends bike and changing the crank. I have removed it and want to find a replacement The removed item is Model: BB-06-PSPL - 113/68 Im wondering if there is a replacement Shimano ...
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1answer
353 views

Picking a crankset for a 107mm BB on a downhill bike

I bought a downhill frame (Commencal DH Supreme 2012) that I want to build up with parts myself. Now I'm trying to pick a suitable crankset for the 107mm bottom bracket. Having a hard time finding ...
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1answer
261 views

Peugeot PX-10 with Shimano 105 Triple with BB-6700

Upgrading my french PX-10e with shimano 105 cranks. What bottom bracket can I use with this 68mm bottom bracket with french threading? Is there a threadless BB available?
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1answer
181 views

What kind of crank extractor do I need

I'm trying to swap the cranks on our Thorn tandem and would like to know what kind of crank extractor (if any) I need for the job. Is there a way to tell from this photo, before I've taken it all ...
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1answer
327 views

Are 130 BCD chainsets stiffer than 110 BCD?

I would expect the crank spider not to sacrifice much stiffness in expanding from 110 to 130, but the chainrings seem flimsy in comparison. Do I buy extra stiffness by using a standard chainset ...
5
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3answers
6k views

Replace crankset or cassette for better road performance on an MTB?

I few years ago I got into cycling again to help keep fit. I still had my mountain bike from when I did some easy trail riding. I'm mainly riding on the road now and I was wondering if I can change ...
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1answer
90 views

Are road cranks less strudy than comparatevely priced MTB cranks?

Road bikes are built to face different challenges than MTBs. Does this lead to difference in the crank strenght versus weight optimization? Will road cranks tackle to the occasional bump onto a stone ...
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2answers
494 views

Crank arm snapped: what could have caused it?

Recently, on my single-speed bike, the right crank arm just snapped. Was slowly going up a hill, and all of a sudden it broke in two pieces. I have now exchanged the entire crank & chain set ...
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4answers
594 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 ...
5
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2answers
344 views

Carbon cranks care?

I have carbon cranks (SRAM S-2200) on a new bike. The side is quite protected but the bottom part, where the pedals are fitted, is not. Hitting rocks on the bumpy road is sometimes inevitable. How ...
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1answer
623 views

Chainring offset - chainline - of Alfine vs. Ultegra/Dura Ace

I have a bike with Alfine 11 and belt drive. I think I could use a 175mm crank, certainly a 172.5, rather than the 170 Alfine comes in (height 6'1" frame size 60cm) and going a little lighter and ...
2
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1answer
538 views

What types of BB-axle to crankarms interfaces are there?

On the lowest end, we have the taper/square interface. I believe it is standard i.e. there are no variations in the sizes. image property of VP Components USA Then there is the octalink. Actually ...
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3answers
1k views

Crankset replacement

I have Exage 300 lx crank 48,38,28 Crankset. It is also Biopace. I would like to replace it since it is worn out. What current model from Shimano is a suitable replacement? regards
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2answers
678 views

Why such a tiny difference in crankarm length?

Why are there only 170 and 175mm lengths for the crank arms of MTBs? I would have guessed that touring bikes would benefit from far longer crank arms than those, suitable for mountain riding.
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3answers
1k views

Expected chainline from 103 mm bottom bracket to 107 mm bottom bracket?

Frame Windsor - The Hour Hub Width - 120mm Stock Bottom Bracket Sizing - 68 x 103 mm Miche Bottom Bracket Sizing - 68 x 107 mm Miche Crank Set Requirements - 68 x 107 mm bottom bracket ...