How to Replace Cotterless Crank Arms

Hello! I have a grinding sound coming from my front wheel and I can't figure it out. I took apart the hub and cleaned the ball bearings, which made the wheel spin more smoothly but the sound is still there. I have attached a link to an audio recording of the sound. The sound seems to occur at a slow and steady pace, even when i'm biking pretty fast. I have a single speed bike with rim brakes. any...

Hi. I have a fairly cheepish bike, Appolo Evade Mountain Bike. (The reason for it having a freewheel was probably due to price not age). Anyways. So, there is a tiny bit of freewheel wobble which I have come across on a lot of freewheel bikes so I never considered this a problem. Freewheels just tend to get a little bent right? Despite this, shifting is just fine and smooth and the whole drive ...

I have an original 2010 Trek District 1st edition. I need the rear cog 22t 9 spline replaced, I've stripped out my original one. I can not find this part anywhere and if I go to trek website or even gates, they say the part does not exist. When I contacted gates they informed me that they do not have any and that I could maybe find it through a 3rd party source. I really do not want to change it ...

I'm a former racer attempting to build a business selling bike bleed kits, and I am in this class where we are working on a product/service feasibility assignment. If you're a biker or have some knowledge in the cycling industry, could help me out in taking this quick survey for a business idea of selling bleed kits for bikes, motorcycles, and other vehicles? It involves looking over a one-page ...

Greetings all, Looking for a little advice on why and how to fix the Presta air valve on my Park Tools floor pump. It’s a dual presta Schrader attachment (that in not removable) on the pump and air flow simply stopped flowing into the presta despite lock being on to block Schrader flow. There has been some lead up warning as it became harder to pump and would ‘pop’ when whatever was blocki...

I'm looking for a compatible thumb or bar-end shifter for a Campy 9-speed derailleur. The Jtek ShiftMate 3 looked like the perfect solution as it would allow me to use a cheap Shimano-compatible shifter, but they're only sold by SKS Cycles in the UK and I'd prefer not to ship back to the US from overseas. Does anyone know of other solutions out there (besides friction shifters)?...

All, Just had my brakes replaced and repaired. I noticed that my rear v-brakes were skewed to one side. Not sure how to fix or reconfigure this. Any help is appreciated. The attachment shows the skewed v-brakes leaning to one side.   rear-v-brakes.jpg (Size: 57.44 KB / Downloads: 100) Thanks....

I am building my dream bike and I want to put a Chris King bottom bracket in it. It is just very hard to figure out which one is the right one. I plan on getting a Sram DUB crankset because it has the look I´m going for, with a decent price tag. I have a Cinelli Vigorell disc frame. I believe that in order to put the DUB crankset on I would need the King Threadfit 30. I don't know what the differ...

Hi, I followed the park tool instruction for the front and rear derailer alignment but the Front Derailer moves to the bigger cog only when I'm not riding the bike. On the stand, it moves to the bigger cog just fine but whenever I ride it doesn't move. It shifts perfectly on the stand but seems to hit the h limit screw when sitting and actually riding (the cables are not being clamped in any way ...

I've watched the Park Tool video on removing and installing a new crank. I've completed the removal/install and torqued to 45Nm (hoping this is correct for a cheap SR Suntour XCT since I can't find manufacturer guidance). I used a tiny bit of grease (but let's not go down that rabbit hole for this question). Here's where I'm starting to find conflicting info. This document on Sheldon's siteexpla...

Hi! I recently got a cheapie old mountain bike. A few minor thing had to be done to it to get it into a good usable condition. The old thing thats still up with it is a slight wobble in the rear freewheel. It makes the rear gears slip a bit. I don't know much about freewheel mechanisms... is there user serviceable bearing in then or is replacing that the only option? i've uploaded a video to sh...

I am having a problem with my chain sagging in the small chainring to small cog combination. I am aware that it is inadvisable to use this or the big chainring to big cog. I have a triple chainset with 46-36-24 and my cassette is an 11-32. I have put a new chain on and checked the length required using a calculator and also manually over big chainring, big cog according to advice on Park tools we...

I bought a new gravel bike last week and noticed that the shifting seemed to jump around in the higher gears. I watched a park tool video on how to adjust the rear derailleur and adjusted the limit screws and indexing it seemed that everything was working normal. Just went on a quick ride on my trainer, didn't notice any problems with the shifting, then when I took the bike off and put the rear wh...

I have a 1983 Raleigh Super Course 12-speed bike. I'd like to replace certain parts and to 'clean up' certain other parts depending on how they have survived the passing of time. From 1983 until this past April, this bike has seen very limited use, so, much of it is in excellent condition. I though I'd start with tires and tubes, but even in that category, I'm a little confused. The tires show 27X...

Hi I hope someone can help. I removed the front wheel on my ebike to fix a puncture which has disc brake. When trying to replace the wheel it was difficult to get in the forks And when I finally got it in the wheel is stiff with no play at all. hope you can help.?...