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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Alternatives to shorter cranks for knee pain

I've recently developed pain at the front of my knees when cycling. I suspect this is caused by, or at least made worse by, my bike having cranks that are too long for my leg length (172.5mm cranks ...
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186 views

Shimano 105 FD-R7000-F front dereailleur chain rub

Recently purchased a new Cube Attain GTC 2020 road bike, it came with : Front Derailleur - Shimano 105 FD-R7000, 31.8mm Clamp Rear Derailleur - Shimano 105 RD-R7000-DGS, 11-Speed Brake System - ...
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67 views

Creaking sound when pedaling [audio clip included]

Something is creaking on my Cannondale while pedaling with force. It is easier to hear in low gears, when climbing. An audio clip tells it better than any literal description, so here is a recording ...
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96 views

My square taper crank was partially extracted in accident. What to do?

I was trying to learn how to track stand and I had a strap on my left foot. I failed miserably and I tilled over then since my foot was in the strap my left crank got pulled out. What do I do to fix ...
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84 views

Replacing BB, but found mountain + road cranks and am confused

Last year I bought a Norco Search 105 Hydro (https://www.norco.com/bikes/2018/dirt-dropbar/gravel/search-aluminum/search-a-105-hydro/) and from the beginning had bottom bracket creaking. Brought it ...
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34 views

Converting front crankset to a single type on a 18" Carrera Vulcan MTB bike

I'm interested in converting my front crankset from 3 to 1 for simplicity. I'm not sure where to start or what size to obtain? This is what I have... 18" Carrera Vulcan, 27.5 x 2.2, 2016. Do I use a ...
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56 views

Replacement Crank Arm? [closed]

Hi I have a 12 spline left crankarm to replace but can't find the right-hand side crankarm. got ok for 12 spline its just the size. My one is TR7JAED 165
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What tool should I purchase in order to replace the bottom bracket in my Giant Defy 3?

I'm changing my front crankset from Gossamer FSA 105 to Shimano 105 FC-R7000 in my Giant Defy 3 road bike from 2015... I kinda stuck on removing the bottom bracket as I'm not sure which type of tool ...
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Drivetrain replacement or upgrade - 2009 Cannondale Six 6

A couple different shops have suggested that it’s time to replace my drivetrain. Chain has stretched and gears are losing shape. The rear cassette is an SRAM PG-950 12-26 9 speed. Crank is Tiagra 30/...
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135 views

New bike is slipping gears

Got a bike 3 weeks ago. It now slips gears WITHOUT shifting. only slipping when I pedal hard or uphill.. It shifts good. I weigh 250lbs. edit: with a new derailleur
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51 views

Bottom bracket upgrade

I want to upgrade the components on my bike. I want to start with the crankset. I'm just sourcing parts/tools at the moment. It originally came with 113mm spindle sealed cartridge. The bottom ...
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106 views

Can I combine narrow wide chainring in triple chainring?

I have Shimano crank (MT300) with triple chainring (44-32-22), I want to change the outer chainring(44) with the bigger (maybe 50 or 52), can I use narrow wide chainring in outer gear? so the new set ...
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124 views

39-53t chainring on full suspension bike

I have a Giant Reign x1 bike which has 2X factory installed 22-36t 4 bolt Sram Truvativ chainring. The question is, is it possible to find 39-53t 4 bolt chainring that can be fitted to this bike or ...
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169 views

My road bike seems slightly too big for me

After riding for about 300km, I'm looking at adjusting some parts to fit me. First adjustment: Because I feel that I'm stretching a little too forward, causing my back to ache, I've decided I would ...
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91 views

Crank sliding 1 mm right left

I just had my bottom bracket replaced on my road bike (Cervelo S3). I went for a ride and realized on the way back that the crankset was sliding right-left... That's not normal right? Here is a video:...
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What pedal fits my crank?

I live in Australia. Im new to the whole mnt bike scene. I use my mnt bike for excercise (doctors orders) I have the proper bike tool kit, but am still learning. My question: I ride a Giant boulder 1 ...
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56 views

Upgrading crankset on a 2001 Bianchi Grizzly

So, I managed to pick up a Bianchi Grizzly frame for pretty cheap, with nearly all components included to build up. Included was nearly a full XTR groupset that has seen better days. I installed it ...
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57 views

Drivetrain, components of different brand

Do all parts of the drive train have to be of the same brand? Can the chain be a different brand from the rest of the drive train? Cassette, crank, derailleurs?
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When changing to another crankset , do I need to change to the brand's specific bottom bracket?

just a quick question , my mountain bike has 3x drivetrain with SR Suntour XCM Crankset , and Im thinking of getting a 1x Shimano XT Crankset do i need to replace the bottom bracket ? and what bottom ...
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87 views

Upgrading a crank set

I presently have a 3x7 speed crankset with a sealed cartridge bottom bracket on my touring bike and want to upgrade to a new Hollowtech II bottom bracket and crankset, specifically, the SHIMANO Claris ...
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Broken bottom bracket?

I bought a Trek FX Series 7.5 in April 2017 and ride every day for about an hour. Two weeks ago the crank arms suddenly gave around the bottom bracket and no longer stayed 180 degrees to eachother. I "...
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155 views

Can a Mamachari be fitted with an 11 speed 52-36T crankset and FD?

I would like to upgrade this bike with a better and faster crankset, 52-36T, but I'm confused if my planned setup will be compatible with the bike I have. I have consulted in our local bike shop and ...
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47 views

How can I upgrade a Shimano FC-TX70 crankset?

I need to replace a Shimano FX-TX70 crankset, "DualSisIndex", 42-34-24. However, I'm quite lost on the Shimano website, and I'm not so sure which part to choose as a similar replacement... Would ...
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104 views

FC-RS510 Crankset compatibility

I've recently acquired a cyclocross bike (Stevens Prestige) with aforementioned FC-RS510 crankset. I am thinking of exchanging the 50-34 gearing which is currently mounted with a 46-36 set because ...
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79 views

SRAM GXP crank installation and rear hub preload

I just had some new BB bearings installed and am going to put the crank in but have two spacers/dust shields I am uncertain of position. I had everything laid out how it was removed but it got mixed ...
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531 views

Left crank keeps coming loose

Often when I go to school on my bicycle the left crank arm starts to loosen up after one or two really gentle jumps. When this happens I just tighten it with the tool I have in my backpack. It went on ...
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77 views

SRAM AXS double to single

I'm looking at a road bike with SRAM Force AXS 2x crank but would like it as 1x. I see from photos that the spider is separate from the right crank. Are the 1x vs 2x arms and/or spiders different? ...
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212 views

How to remove a stuck SRAM AXS (Dub) crankset

I wanted to remove my relatively new SRAM RED eTap AXS crankset from my bike and I'm having problems trying to loosen (meaning: being unable to) the main 8mm hex bolt on the drive side, the step shown ...
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77 views

Converting an SRAM Apex 2x10 to 1x10

I want to convert my bike to a 1x drivetrain (and move to a dropbar). It's a Commençal Le Route from 2013, full specs are here: mostly a 2x10 SRAM Apex Groupset (34/48 at the front, 11/32 at the rear)....
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77 views

What is this crank and BB on this bike? And how do I take that sort of crank off?

I have a 2009 Cannondale Six Carbon 3, which supposedly has a BB30 bottom bracket and a FSA Gossamer non-BB30 crank set. It looks like this: I'm having some creaks when I pedal and I'm trying to ...
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142 views

Shimano Tiagra - Install smaller front chainring

I recently bought a used Trek Checkpoint ALR4, with which I'm very satisfied. The gearing is ok so far for going on plane ground an light uphills, but when going on long and steeper hills it gets ...
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156 views

Sram Red AXS Crank Bolt Cap missing - how to remove crank, if at all?

I've got an Sram AXS Dub Crankset on my bike and noticed a few days ago, that the black cover around the crankset bolt (chainring side.. where you tighten/loosen usally to remove the crankset) has ...
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32 views

Raleigh 300 Crank Bolt specs for replacement

I have a Raleigh 300 and the crank bolt fell off and was lost. I have no idea how to find out what size crank bolt I should get! Can anyone advise?
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157 views

Campanolo record power meter crank with veloce crankset

Can I use a Stages Campagnolo Record left crank with my Campagnolo veloce crankset, if the sizes are a match? Want a power meter of some sorts and it would be far cheaper than getting vectors.
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84 views

Is it ok to pair 11-36T cassette 11 speed with 50-34T Crankset?

Is it ok to pair 11 speed 11-36T cassette with 50-34T crankset? And is Shimano 105 RD compatible with this setup? I'm planning this setup for my Japanese vintage touring bike.
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90 views

Compatibility between Shimano 105 crankset and Shimano Deore derailleur

I have a wild idea to replace a crankset on my Merida Crossway 500 (2014) (which is now SR Suntour NCX-FX-10s 48A-36-26 CG) with Shimano 105 5750 cCompact 10sp (switch from 3-speed to 2-speed). The ...
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40 views

Does anyone here have measurements of SRAM's direct-mount spline interface?

The makerspace I work in purchased a new metal milling unit and I want to test its software's tolerances and mill a narrow-wide chainring. I'm guessing it just consists of a circle with square ...
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742 views

New pedal fell off maybe 50 miles after installation. Should I replace the entire crank, just the arm, or repair the thread?

Repair newbie here just getting back into mountain biking after a long absence. I recently bought a Cannondale Catalyst 4 from REI. It's a fine introductory bike for what I'm looking for, but I ...
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93 views

Not able to get crank bolt into bottom bracket spindle

I recently posted a question about changing my chainset, I was advised on this SRAM chainset which I could use which would fit my square tapered bottom bracket. I have attempted to fit the new ...
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73 views

Can I replace a 3x8 1999 Sora crankset with a Claris FC-2403?

I expect I would need a compatible bottom bracket too, like the one that this Claris crankset is frequently bought together with, here. The front derailleur is already a Claris, a few months old. ...
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248 views

How to remove hex crank bolt

I have been looking online for tutorials on replacing a chainring (or three) for my Scott mountain bike: https://www.thebikelist.co.uk/scott/aspect-40-2012 When trying to take off the chainset so ...
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76 views

How can I replace my front cog… or fix slipping off on folding bike?

I have a Faulkner folding bike and I notice often the 6th gear, high gear falls off switching to high gear. Someone mentioned that the cog might be a bad choice for the front of folding bike and may ...
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117 views

Worn out square taper bottom bracket spindle?

I got an used bike with a worn out left crank arm. I tried replacing with a new square taper crank arm and torqued it to 40nm; however, it started creaking soon after and the bolt had become loose (I ...
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50 views

Deore XT Power Crank

I have an Ultegra Crank set. I also have a Deore XT 175mm left side power crank. Can I use this on a road bike?
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82 views

Single chainring conversion issues

I've got a Specialized Crosstrail Elite. I want to get rid of the front derailleur and go for a single front chainring. Its a 68mm BB shell but needs a 73mm BB with spacers. It currently has a FSA ...
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163 views

Shimano Front Chainwheel FC-MC19 Replacement?

I have Shimano FC-MC19 22/32/42 175mm crankset on my MTB for 17 years and it's time to replace it but I find it difficult to figure out what new crankset will fit my bicycle. Two years ago I replaced ...
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100 views

Is the Shimano 2303 crank arm and the 2300 crank arm the same?

I bought a Shimano 2303 crankset (52/42/34 triple) by mistake although I should have bought a 2300 crank If I remove the inner 34t, will it have the same structure as 2300 crank? By structure I mean ...
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358 views

Can I grease a crank spindle/bracket without disassembling the crank set?

A bit of history: the grooves on the spindle are partially destroyed/skewed by cycling with a loose crank, so I applied a lot of force to a hexdriver to get the crank arm on. Now, it would be quite ...
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42 views

Will a bashboard and 3 chainrings require longer bolts?

Following on from Could I use a FD-M735 with a FC-MC3x?, I noticed that that the Shimano FC-MC36 crank with this unusual bash board fitted, only has one chainring. Would I be able to get the three ...
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55 views

Could I use a FD-M735 with a FC-MC3x?

I have a Shimano FD-M735 currently on my bike, and I would like to replace the aging FC-TY33 that I have, with a FC-M730 ideally, but they are too pricey. However, I have found a FC-MC36 and a FC-MC34 ...