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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2answers
229 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 ...
3
votes
1answer
369 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 ...
1
vote
2answers
120 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 ...
2
votes
1answer
58 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.
6
votes
3answers
2k 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 ...
1
vote
1answer
78 views

How do you remove the sprocket from an eighthinch splined BMX style crankset?

I have the EighthInch Freestyle Splined Crankset. These are very similar to profile bmx cranksets. I purchased a larger sprocket to use with the crankset. I've used a crank puller to remove the drive ...
1
vote
1answer
281 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 ...
1
vote
1answer
77 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.
1
vote
1answer
106 views

Pedal thread gone SRAM 150/100 chainset - what can be done?

I recently bought an Eastway FB3.0 road bike (http://www.wiggle.co.uk/eastway-fb30-2014/) for commuting and the pedal thread has gone on the right hand pedal. Am I right in thinking the only solution ...
1
vote
2answers
502 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 ...
0
votes
1answer
72 views

pedal crank moves and tries to slip off the axle

I changed the bottom-bracket in my mountain bike two years ago, the problem was that the bolt on the crank on the non-drive side was continuously getting loose, to the point that I had to stop and ...
0
votes
2answers
47 views

Replace a double ultegra crankset for a triple ultegra crankset. Is that possible?

I would like to exchange a triple Ultegra crankset on one road bicycle to another bicycle with a double Ultegra crankset. Is that possible?
1
vote
1answer
358 views

46/30 from a 53/39

I'm considering making the above change in crank sets primarily because 53/39 is really hard on the hills here. I have 11-28 at the back. I don't see a downside to this since it seems like I will ...
2
votes
1answer
102 views

Crank sliding horizontally through the bottom bracket

Was out biking today when I noticed the pedals were moving side to side, with the pedal arm almost coming off the left side. As I was investigating the washer with "LH fsa AL" actually came off in my ...
3
votes
3answers
200 views

Larger sproket on a single speed crankset?

I recently bought an urban bike that comes with a single gear crankset with a 42 tooth sprocket and an 8 speed rear with 12-36 teeth. I would like to swap out the front sprocket to a larger one to ...
5
votes
1answer
119 views

Is it possible to change the lengths of bike cranks? [duplicate]

ive had debilitating arthritis since I was five and whilst I was younger I enjoyed riding a bike. Unfortunately due to degradation of my hip and lower back joints I am unable to use bikes with long ...
3
votes
1answer
97 views

crankset compatability

I am wondering if I would be able to run the 105 5800 crankset with my 9 speed ultegra 5600 shifters/rd? I don't have the funds to do the whole groupset at once, and I believe upgrading to 11 speed ...
1
vote
2answers
144 views

Can I install a double chainset on a bike that was originally designed for a triple chainset?

I have a BTwin Triban 3 which has a triple chainset that needs replacing. I am thinking of replacing it with a double chainset this time. Is this possible, or do I need new shifters and a different ...
2
votes
2answers
234 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. ...
0
votes
2answers
168 views

Cassette & Crank combo for commuting

Okay so I've been reading about gear ratios and what not all morning and I can't make any sense of it. Some of it is registering but it's still kind of over my head. I'm ordering a Tiagra group set ...
2
votes
1answer
147 views

Touring Drivetrain Dilemna

I own a 2015 Specialized AWOL Elite and love it except when I am fully loaded and lumbering up a pass. I'm looking for a way to get more range without completely replacing my drivetrain. This ...
1
vote
2answers
105 views

Compatibility issues with upgrading a 1991 1400a Miyata Road Bike

I've only just started getting into bikes recently, so i'll try and be as accurate and succinct as possible. Apologies in advance if I confuse anyone. I want to upgrade the wheels and crankset on my ...
0
votes
1answer
205 views

How to remove Race Face crankset?

I have a Race Face Ride XC single ring crankset that I stripped out the pedal threads on one arm. I am trying to remove the crankset, I have followed the instructions that came with the crankset, and ...
2
votes
1answer
98 views

Orienting Shimano Cup and Cone square-taper bottom bracket spindle

Let's say you were servicing a Shimano adjustable bottom bracket and forgot which way the spindle was originally oriented. You also forgot your ruler. How would one correctly orient the spindle (so ...
1
vote
1answer
31 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 ...
0
votes
1answer
38 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
votes
2answers
448 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 ...
0
votes
2answers
384 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 ...
7
votes
1answer
211 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 ...
7
votes
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 ...
4
votes
1answer
357 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 ...
3
votes
1answer
44 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
3
votes
2answers
402 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
3answers
375 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 ...
2
votes
2answers
298 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 ...
0
votes
1answer
307 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 ...
1
vote
2answers
230 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?
6
votes
2answers
704 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 ...
0
votes
2answers
324 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 ...
0
votes
0answers
29 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. ...
1
vote
0answers
99 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 ...
-1
votes
1answer
115 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 ...
0
votes
2answers
3k 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, ...
0
votes
1answer
278 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. ...
2
votes
2answers
111 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 ...
-1
votes
2answers
182 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 ...
1
vote
1answer
344 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 ...
1
vote
3answers
362 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 ...
0
votes
1answer
158 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
vote
1answer
115 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 ...