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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13 views

I have an old Sugino 110mm BCD ring set, can I replace low ring with SHIMANO FC-5650 chainring 34T?

I have a 48 tooth main ring with 165 cranks. FD is Sora double and rear is Tiagra short with Shimano 7 freewheel. If I can put this 34 ring on it gives me sufficient range for the next few months and ...
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1answer
17 views

Can I add 3rd chainring to a an old Sugino double?

I have a vintage (165mm-Crnk) Sugino 40/48 on here now, but am looking to add some gear range for up hill with med-sm load. I have a Tiagra short cage RD and a Sora double FD. I am friction shifting. ...
2
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2answers
163 views

8 speed free wheel with single speed crankset

I would like to change my bike setup. I have a 8 speed freewheel and a 3 chainrings crankset and I would like to add a single speed crankset in front (around 50 teeth) because I am not using my front ...
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2answers
32 views

Race Face Crank/Chainring Compatibility

I have a Race Face Evolve DH crankset which takes 104 BCD chainrings. However, I pulled a 104 BCD chainring off a Shimano Acera Crankset and the rings don't interface properly with the Race Face ...
6
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1answer
164 views

What is the second thread on the crank for?

I am trying to fix the problem with my bicycle where the left crank keeps unscrewing itself. The thread on which a serrated lock nut should keep the pedal in place is conventional (clockwise to ...
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6answers
1k views

Group of Bikes: Is 3x1 an option?

I'm an RA for a dorm that is considering buying a number of bikes that would be owned by the dorm and lent out to students. I will be at least in part responsible for maintaining the fleet (about 10 ...
3
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1answer
69 views

I can remove crank arms without a crank puller, is this a problem? I'm worried the crankarms might be loose

Currently, I'm little bit worried about the compatibility of my crankset and the bottom bracket. The crankset is Truvativ Isoflow, the BB is BB-UN55 (Square taper). Yesterday, after the bike hit +1400 ...
2
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1answer
35 views

Double crank to single?

I just wanna know if I can take off one of the chainrings for this crankset before I buy it off craigslist. Thanks!! enter image description here
2
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1answer
80 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 ...
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3answers
162 views

(racer) Standard vs compact crankset: Increased leverage for same gear ratios true?

I'm a road and mtb regional racer about to have a go at my first road endurance nationals very soon. I'd like some educated scientifically validated answer on a matter that has been on my mind ever ...
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0answers
47 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 ...
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1answer
34 views

Can I convert from a 52/42/30 crankset to 50/39/30?

I need to update my 9 speed triple crankset at 52/42/30, and those combinations seem difficult to find when I'm also looking to upgrade. A more common teeth combination seems to be 50/39/30, but I'm ...
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2answers
71 views

One crank arm won't come off

First time taking the cranks off. The bolts, chinrings and drive side came out easy. Left is stuck. Should I open, pull or do something particular for it to come out?
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2answers
295 views

Can I replace a middle chain ring with one with different number of teeth?

I recently upgraded my wife’s bike with a Shimano XT triple crankset. The number of teeth is 44.32.22t. However, the middle chainring on the recent XT crankset is carbon-reinforced, and I’d prefer not ...
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2answers
60 views

cannondale cadd10 105 crankset replacement

I had a terrible crash on my Cannondale CADD10 105 (11spd) and wrecked the crankset (the bigger ring bent). It is FSA Gossamer Pro, BB30, 52/36 from the website. Is there an identical one available ...
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0answers
21 views

Crank-set issue

I am having a crankset issue, I have tested by holding both brakes and moving the crank and pedals parallel and pushing down, with each 180 rotation, the crank moves and thuds a little each side. ...
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0answers
33 views

Yaw front derailleur compatible crankset [closed]

I recently upgraded my Cannondale CAAD10 to SRAM force 22 groupset. But I really dislike how new Force 22 BB30 crankset looks on the frame due to longer spindle, so I refused to keep it. Currently ...
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1answer
65 views

How do I know my frame can take a compact crank set?

My bike came with only RD as 1 x 9 drive system. But the frame does have a FD mount point and the seller told me 53/39 can go on it for sure but he is not sure if the compact will work. So how do I ...
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2answers
200 views

Is the 9-speed Sora crankset compatible with 105 11-speed chain?

I'm thinking of upgrading my bike, which has a Sora 9-speed system on it (50/34 chainset). The upgrade is for esthetic reasons - i simply like the look of the internal cable routing. That being said, ...
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1answer
88 views

Help me understand bottom brackets and cranks

I have a Norco Threshold cyclocross bike (http://www.norco.com/bikes/road/cyclocross/threshold-carbon/threshold-sl-ultegra/) . It has a PF30 bottom bracket and an FSA Energy Cross PF30 46/36T crank. ...
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2answers
55 views

Does anyone know of a machinist who could convert a dual ring Campy Nuovo Record chainset ('spider') to accept a 3rd chainring?

I have a 1971 Raleigh International whose Campagnolo Nuovo Record chainset has Campy pedals that are 'frozen' into their threads (I know, this is an instance of neglected maintenance). I really like ...
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2answers
154 views

How did this happen to my chainring?

So, this happened. All of this group of bolts but the one you see came out of my crankset: My question is.. how exactly do all those bolts wriggle themselves loose !? How do I determine what ...
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1answer
87 views

Praxis Bottom Bracket Performance on BB30 Frame

I'm looking at upgrading the crank (stock FSA to Force 22) and getting a Praxis BB for my Cannondale CAAD10 BB30 frame. http://www.praxiscycles.com/product/conv-bb-sramgxp-isis-2/ It seems like ...
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1answer
107 views

Campagnolo Crank Compatibility 11 speed crank to 9 speed chain/deraillieur/shifters

I need to replace my 9 Speed Campagnolo Racing T Crank with a new one which uses the power torque system. Is a 11 Speed Athena (or 10 speed Centaur) crank compatible with the racing t front ...
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1answer
67 views

Bottom Bracket Press fit to a square taper

I like to use my old Campagnolo crank on a new road bike frame. The frame has already a Pressfit BB71-41A installed. The crank needs a sqaure tape. Is it possible to use the crank with a adapter or do ...
1
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1answer
70 views

Hollowtech 2 cranks and bb how good they are?

I have been commuting by a bike for 6 months on a 9 speed bike. It has a standard squared taped BB and cranks screwed on it. Now I have heard those Hollowtech 2 cranks and BB and how they can improve ...
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2answers
72 views

Finding a replacement crankset (and maybe a bb to go with)

I am in need of replacing my crankset on my hybrid discovery 401 - although all that is left of the 401 now is the frame and the bb/crankset. it has a sealed bb 113/68 square taper. I am struggling ...
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1answer
89 views

Crank fell off square taper BB. Should I replace bottom bracket

After years of use and multiple retightenings my crank will fall off my bike about once a week and definitely needs to be replaced. I believe that the square hole of the crank has expanded to the ...
0
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1answer
181 views

Technical documentation for Shimano FC-M510

I'm having a hard time finding the technical documentation (equivalent of https://www.dropbox.com/s/yx5hq4cezpdz641/alivio-crankset-service.pdf?dl=0) for the Shimano Deore Hollowtech 1 crankset, ...
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1answer
55 views

A gap in the hole when inserting JIS square BB to a Truvativ Crank

I push the BB inside a crank hole without any tool but I expect a few milimeters gap. The Truvativ crank definitely uses JIS interface, but the question is: DOES the gap make any problem? or is it ...
4
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1answer
126 views

What is “crank preload”

I'm in the middle of swapping my BB30 cranks from stock FSA Gossamer to a (shorter length) SRAM BB30 "IA" S950. The S950 has a "crank preload" adjuster on the NDS which the spindle is also attached ...
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1answer
153 views

Is there any reason I can't convert a 36/46 to a 36/52 chainring?

My commuter bike is a converted cross bike (really just a cross bike with a rack on it). It works great, but I occasionally wish I had a higher top end gear. The crankset that came on it is a 36/46 ...
1
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1answer
41 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 ...
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2answers
288 views

Replacing Sora crankarm

so I accidentally screwed the wrong side pedal into my left hand crankarm on my Giant Defy 3 2014, and I have been looking to buy a replacement part myself and get a mechanic to install it. I am ...
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2answers
255 views

Creaky crank problem: Campag 11sp Athena crankset (Ultra torque)

I have an awesome Ridley Noah carbon frame, fitted with Athena Campag 11sp groupo. Recently it's been making a lot of creaky and "pop" noises as I ride up hills (putting more force on the crank ...
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2answers
97 views

How to avoid getting swindled when buying used cranks?

I'm looking for a cheap, used set of cranks for a bike that was fished out of the garbage :) Because the cranks won't be on a bicycle when I go buy them, how can I tell if they're bent or not? I'm ...
1
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2answers
162 views

How much assembly is required when an LBS orders a bike?

I'm looking to order a Marin Lombard Elite from my LBS but I want to replace the FSA BB and crankset with Shimano or SRAM parts, and change to a 52/36. When my LBS orders it, does all of that come ...
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0answers
294 views

Replacement crankset for Shimano SG B 52/39?

I have a very basic Specialized Allez (XL frame) street bike (pictured in my avatar) with a cheap SG B52/39 chainring needing replacement (warped and wearing out after two years of daily use). But ...
2
votes
1answer
89 views

Scott Mountain bike. Problem with pedaling

Last 2 runs out my bike I have as suffered from what I can only describe as the pedal free wheeling ie pressure put on pedal does not drive the bike, but after a couple of turns it then drive the bike ...
3
votes
2answers
594 views

I have a broken my drive side crankarm - what do I need to do?

I recently had to dash home for a minor emergency. I noticed that one pedal was a bit wobbly but I had no choice but to push on. Once I got home and the emergency had been dealt with I noticed that my ...
2
votes
2answers
131 views

Older XTR cranks - replace or adapt?

I've been using Shimano XTR cranks since my bike was assembled in 2002 (fc-m952?). I've replaced the rings a few times in the past (though not in several years) but it appears that these cranks were ...
0
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1answer
141 views

What to consider when looking for a chainguard?

Alright, the inner seam of my jeans is about done for, and I'm worried that I'll take a nasty spill the next time my pants get caught in there. Given that I don't want to wear gaiters or Lycra, I'm ...
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2answers
118 views

24t or 26t granny gear?

Getting a new crankset, decided on this one from Rivendell: http://www.rivbike.com/product-p/cr1.htm Question: Should I keep the 24t granny or get them to swap it out for a 26t? I have some concerns ...
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3answers
158 views

Problem with inside of shoe clipping crank arm

Crankset http://velobase.com/ViewComponent.aspx?ID=c50c795c-1016-4021-8ae8-9f68450fde36 and I know I'm using the right bottom bracket (119mm) The pedals ...
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1answer
42 views

Crank type for an old peugot

I'm renovating an old Peugot and need to replace the crank. It takes a clotted crank however I'm not sure on the size. I brought a crank previously and it didn't fit, I couldn't get it on the bike ...
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2answers
265 views

How to find compatible cranks?

The threads on both cranks got busted due to putting the wrong pedals by the shop (here is my post with details) so I need to find replacement. How to find compatible cranks? My bike is Carrera ...
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4answers
754 views

Crank threads stripped - both pedals fell off

Something really strange happened to me - 2 years ago I bought a bike (Carrera Gryphon Hybrid from Halfords). I had just about 100 miles on that bike the month I bought it and than I locked it to a ...
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2answers
124 views

My bike Crank is making noise like Tuk, Tuk… once or twice when I pedal hard

I get a sound from my crank as if something were about to break to pieces when I stand and pedal hard.
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0answers
54 views

Don't know spindle size?

I'm not quite sure what size my spindle is on my giant downhill bike. I bought it a while back and it hasn't caused any problems. I've only recently taken up making it look good. All I want is 2 ...
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2answers
83 views

My crankset stops the pedals from turning when I tighten it onto the bottom bracket

This sounds like a stupid question however, I'm pretty sure I took these cranks off my current set up before. I wanted to ask if there is such a thing as a spacer on the bb axel ever that I might be ...