r/BikeRepair

Rear wheel rubbing on chainstay

As soon I apply more torque on the pedals (such as climbing up hills), the rear wheel shifts and gets stuck against the chainstay. I’ve already tried centering the wheel and tightening the quick release as tight as possible, but still having issues. Any input is appreciated, thanks

reddit.com
u/wooteri_ — 2 hours ago

Help needed!

Thankful for any help or advice!

Hi guys, got a trek madone sl6 from 2019 (rim brake) recently and the front brake is horendous.
Ive tried tensioning the cable, cleaning the arms and centering pads ecc.
Nothing helped, yesterday i saw that my break cable looks like this, is this normal or could this be the reason?

The movement in the video is when the pads already touch the rim and i pull the lever

u/BuildingCs — 12 hours ago

I want different handlebars Cannondale R300 CAAD2

Looking for feedback: will I be able to swap these out for cruiser/straight/upright handlebars with a frame of this style?

This is my second of two ever bike purchases. My first (now stolen... </3) was a straight frame road bike with drop bars. I got used to them and ended up kind of liking them but it was tough on my back.

reddit.com
u/c_sob — 1 day ago

Rapidfire Shifter won’t downshift

I am trying to repair/reinstall this shifter and cassette to a shimano sg -7c20 hub gear, but the shifter won’t down shift to the first speed. I have tried applying tension manually to the wire while down shifting. I am new to this so i’m not sure if i’m doing this correctly.

u/Nickycake — 1 day ago

Huffy 18" SeaStar How to remove this part?

Hi everyone. Amateur here. Please excuse stupid questions. I am trying to replace the Ball Crank Bearing Retainer in my daughter's Huffy 18 inch SeaStar bicycle

It looks like I cannot remove this part no matter what I do. I don't even know what this part is called. I tried rotating the screw and it stops moving after turning a little. I cannot even yank it out it seems to be stuck.

I cannot remove the broken Ball Crank Bearing Retainer without removing this part because it blocks everything under it in the crank set.

Thanks for whatever help you can give.

reddit.com
u/svignan — 1 day ago
▲ 2 r/BikeRepair+1 crossposts

Chain sprocket

In my cb350, in 15000km chain sprocket, break pads and battery is gone. I have already changed break pads twice. Is this normal??

reddit.com
u/nb_2003 — 2 days ago
▲ 3 r/BikeRepair+1 crossposts

Crankset rocking from side to side

Hello,

This past month I'm having an issue with my crankset on my road bike.

Crankset is a Magene p505 power meter with the chainrings/right crank arm/ crankset axle being 1 block, and left crank arm on its own. It has been working flawlessly for 20 000km.

There is play on the left crankarm even when it's freshly screwed up, the "star screw" is screwed to the max without any resistance at all. During the ride, the play gets bigger and bigger and the whole crankset rocks side to side on each pedal stroke, 3 hours into a ride big chainring is not available anymore because it ends up too much on the right.

I bought rings to put on the crankset axle between the edge of the frame/bottom bracket and the left crankarm. Now, there is resistance when i screw the "star screw" and there is no play at all when its freshly screwed, feels very secure. I thought my problem was solved, but I did a 2hour ride today and play appeared towards the end.

These are pictures of the situation at the end of the ride : https://imgur.com/a/lXNOxbB

When I screw the "star screw", I first undo the 5mil allen screw and then screw it to the max.

Do you guys have any idea what is causing the issue ?

Thanks a lot!

u/Pantani_marco — 2 days ago

Front brakes "stick" on one side

I can not figure out why my daughter's front brakes don't seem to go back in place and I stead stick against the rim.

u/Gousf — 4 days ago

Brakes help

I just got an early 2000s specialized enduro expert and the hayes hydraulic brakes are shot. How do I find the right replacement size if I went shimano. I'm new to working on it myself but budget is really tight.

reddit.com
u/Voodoo0nyoudoo — 3 days ago

Rear brake too tight

Hi,

I just got this WEIZE bike and after assembly I can’t figure out how to fix this issue. The piece that goes around the chain will rub against the rear tire. Any suggestions on how to move this further from the tire?

u/xchobham — 4 days ago

What BB tool an I looking for?

I want to service a cheapo early 90's faux MTB for sentimental reasons. The bike is a Raleigh Avalanche that I can't find any technical info for. I want to remove the bottom bracket but I'm struggling to find a tool or tools to remove it.

Anyone know what I'm looking for (bonus points for a link)?

u/DevilsCircus — 4 days ago

Headset Missing Dust Cap

Working on a vintage Gary Fisher Mt. Tam. The Dia-Compe Aheadset is missing it's top seal. What do you all recommend for replacement options?

I believe I need a seal like what's shown on this XCR3000, looks like an identical headset.

u/cburn21 — 3 days ago
▲ 2 r/BikeRepair+1 crossposts

Vertical crack in my bike. How did I happened? Please Help

It's a vertical horizontal crack on my canyon cf 8.

I did that coin test, where u check the sound of the carbon fibre and visual inspection do tell it's a crack.(My phone's camera is shit, so it's not that quite visible in the photo)

This bike has been a close part of me and my dad. I identified it today while I was cleaning it.

I haven't ridden the bike for around 4 months as I was busy with my work and college, maybe my dad rode it during that time. So this week I had some small rides around 30k around the city, due to rain it had got mud on its frame, while I was cleaning it i noticed the crack.

Even though he has serviced the bike last month, the mechanic notices nothing.

How did the crack in the bike occured??

It's so sad for me to see my expensive bike broke (in my country import taxes are 52% of the bike retail cost)

I'm getting all the blame for this frame even tho I didn't rode it that hard or far.

How did it happen? And What should I do? Any suggestions.

u/racer_hpd — 4 days ago

Chain stuck

Hi everybody,

During my cycling ride my chain got stuck in between my chain ring and my frame. This is the damage. I know that I can’t make a decision based on this post and will get it to a mechanic but I’m scared of big costs. What do you guys think? Is this dangerous structural dammage? Will it cost a lot to repair this?

u/Chance_Ad_4758 — 3 days ago

Issues with installing new tyre.

Bicycle tyre opening up on other end as it is almost completely installed. It is a 700x23c as was the previous tyre on this bicycle. Do you have any solutions?

u/No_Success5389 — 5 days ago
▲ 1 r/BikeRepair+1 crossposts

How can I fix this

So my bike got COVERED in wet mud

It was very hot out (94°)

We sprayed it down with hose water and wiped it off.

Didn't look very clean

So we sprayed it with "tuff stuff" which normally does fine

However parts of my bike now look very off in color

How can I fix this 😭

u/generalkenobi88888 — 4 days ago

How to fix this?

I suspect its either a damaged cog or the back derailer is slightly out of place

u/Prior-Ad-7987 — 4 days ago