/r/bikewrench

Photograph via snooOG

A community of cyclists - some with questions, some answers

A forum for folks with questions about bicycle repair.

Post your problems, and we will try to get your bike rolling again. It really helps if you can provide pictures and/or video.

A community of cyclists - some with questions, some answers

Post questions to get help.

Post your problems, and we will try to get your bike rolling again. It really, really helps if you can provide pictures and/or video.

You can also consult our FAQ or the list of people willing to help locally.

Post Rules and Guidelines

  • Questions about bike repair only. If you just want to post a picture, this isn't the place for it. Full rules.

  • "Is this cracked / safe to ride?" - If you have to ask, don't ride it. We probably can't tell from a picture just what condition your bike is in. Take it to your Local Bike Shop and ask them. If it's carbon, a specialist repair shop may be required. They should have the equipment and expertise to inspect it properly.

  • Please use the weekly thread for post follow ups and acknowledgments. Tag helpful commenters if you want them to receive a notification.

Comment Rules

  1. Play nice

  2. Stay on topic / No jokes, especially not false answers as jokes.

Full rules are here.


Other Websites:

Other helpful subs:

Outlets for posts that don't belong here:

or just plain r/bicycling, which also has links to more subs.

/r/bikewrench

246,483 Subscribers

0

WHAT THE FUCK IS THIS???

AND HOW THE FUCK DO YOU REMOVE IT???

8 Comments
2024/11/09
11:10 UTC

4

any idea how I remove this?

I need to remove the crank but after removing the nut at the bottom, I can't remove the bolt and the middle is completely circular with no threads and I can't see how to remove it. I have a crank tool but it doesnt work. I can't move my bike to get it to a shop until I take it off !

Thanks so much if anyone can help

8 Comments
2024/11/09
09:51 UTC

1

Help

How do I remove this stuck crank arm? Tried a rubber mallet but it won’t budge. Got the self pulling 8mm bolt out fine.

5 Comments
2024/11/09
08:42 UTC

3

Which fork fits this frame?

3 Comments
2024/11/09
08:31 UTC

2

To those amongst us who have gone the chain waxing route....

Not looking for an debate Yay or Nay on the topic, but I am curious to ask those who maybe of 'similar kink' to myself and developed a little bit of a regimen of waxing on their main ride(s).

I rotate x2 chains on two of my bikes. I use a dedicated, small (<5L) ceramic bowled slow cooker for melting and dipping.

When you go change the mixture - what ways do you find is the most easy and thorough to get old batch out in one go?

  1. Pour it out liquid and hot? Leaving a bit of a grimey residue with the sediment.

or

  1. Pry or gouge out the cold solid lump - with the old sediment all settled at the bottom?

I just changed my first batch today (probably a bit overdue, in all honesty) and used the first method. The cleaning of the dirty residue was a bit more labour intensive than I'd hoped.

18 Comments
2024/11/09
07:23 UTC

2

Replacement hoses for SRAM Pro bleed kit

So I left dot-fluid in my bleed kit for a day without realizing just how quick the hoses degrade. Where do you guys get replacement hoses?

2 Comments
2024/11/09
07:07 UTC

0

Need Advice on Tubular to Clincher Wheel Conversion for Vintage Bike

Hey everyone,

I recently acquired a beautiful vintage bike frame from the late '80s, and it came with not one but two sets of wheels—both laced to tubulars. The first set features early low spoke count Phil hubs (24/28) that have been radially laced where applicable and also filed for aero spokes. The second set is an amazing set of DA hubs with a similar spoke configuration, though the bladed spokes are more subtle, so the hubs haven’t been filed.

While I love the classic look and performance of tubulars, I'm leaning towards converting to clinchers for convenience and cost reasons. Here's what I'm thinking:

  • Rim Choice: I'm looking for rims that won't look out of place on a late '80s frame. Any recommendations for rims that have a classic, timeless design and are easily available? I've heard good things about Rigida (Ryde) Chrina, Velocity and H+TB Rims.
  • Reusing Bladed Spokes: Is there any hope of reusing the bladed spokes from my current wheels? It looks like there's some room to trim them about 1cm.

I'd really appreciate any advice or suggestions on making this conversion smooth. I love the idea of keeping the vintage aesthetics while making the bike more practical for modern use.

Thanks in advance!

3 Comments
2024/11/09
05:22 UTC

1

Tubeless (re)mounting issues - Vittoria corsa pro

I'm having a lot of trouble remounting my tyres after taking them off (regrets) and none of the tricks are working for me. I didn't have any trouble mounting them when new, but now it seems air can too easily escape under the bead, so I'm wondering if they might have stretched beyond usability? Is that a known issue with these tyres? I never had these issues with my old GP5000 TL tyres, but I know they were infamous for their tight bead. Have any of you experienced something similar?

1 Comment
2024/11/09
04:31 UTC

1

Same Pulleys but one gets stuck?

The pulley on the right works on the top or bottom of the derailleur when tightened all the way but the one on the left gets stuck and won't move on either if it's too tight. They look identical, the one on the right is the original and the left is from a different scrap bike. The right one is on the black part of the derailleur and the one on the left is on the side with all metal and the bent looking tab. What gives? Should I just loosen the one on the left and put threadlocker on the bolt?

3 Comments
2024/11/09
03:17 UTC

1

Question on WTBs chart from Optimal to Compatible.

Im using the chart below. I will be using a MTB rim at 40 mm wide. I was wondering what the difference will be using a tire at 61-584 compared to something in the 64 mm range. Also if I do go this route will I be fine with using a tire in the 61 mm size for bikepacking?

Tire & Rim Fit Chart – WTB

0 Comments
2024/11/09
01:59 UTC

2

Whats the most reasonable way to convert DT Swiss 370 3-pawl hubs with Shimano HG11 to SRAM XDR?

Basically the title:

I managed to snag a set of decent carbon wheels for a good price. Only downside was they had the DT Swiss 370 3-pawl hub with shimano 11 speed road. Looking for a way I could switch it.

  • The Ratchet LN upgrade Kit retails around 180$ CAD; Is there additional tool costs needed to go that upgrade or is it a drop in?

  • Most retail sites around me are selling the 3 pawl body + spacer for 120-140$

  • Last ditch option would be to try and throw on a 12 speed cassette that works with my SRAM system (I think I'm reading that there are 12 speed cassettes that worth with shimano HG, does one just need the SRAM chain or will I run into real issues?)

Is there another option I'm missing?

9 Comments
2024/11/09
01:58 UTC

1

How do I remove this type of crank?

No bolt for crank puller

8 Comments
2024/11/09
01:38 UTC

0

Changed shimano 105 chain ring from 50/34 to 53/39 help with derailer adjustment

Hi Everyone, I have a 12 speed shimano 105 di2 with a 50/34 chainring and 11/34 cassette.

I recently changed my front chainring to 53/39, however i noticed this has changed my chain line and it’s making all types of noises now.

Can anyone suggest how much to adjust front and rear derailer by?

Thank you in advance, total bike noob here

3 Comments
2024/11/09
00:24 UTC

1

rear derailleur cage

is this much bend on the cage okay? it is slighty above the recommended max sprocket but im planning to add a wolftooth and i wonder if that would help? thank you

3 Comments
2024/11/09
00:22 UTC

0

How do i operate this lever

I asked ChatGPT and it said its a quick release lever but I have no idea how to operate it. It doesnt rotate clockwise or counter clockwise. Rotating it releases no pressure at all.

8 Comments
2024/11/08
23:45 UTC

7

Is this a spoke?

They don’t feel loose at all but I’m not sure what else it would be!

3 Comments
2024/11/08
23:27 UTC

1

105 12 speed: Rear noise when pedaling. Clicking & crunching?

Hi there,

I'm trying to figure out the source of my issues. When pedaling, it sounds like a crunch sound. When not pedaling, there's a fast clicking sound. I'm not sure what it can be: https://imgur.com/lSozPf4

Thank you!

2 Comments
2024/11/08
23:26 UTC

1

Something's off about this suspension fork. Anyone know how to fix this?

Hey everyone! I picked up this used suspension fork recently, but there's something awfully off about the legs. A rubber seal on one side seems to have come loose, and a tube that looks like it should be inside the outer portion is sticking out. here's a photo showing what's goin on

and a side view

It actually still works alright, but I'm not sure what the risks are of keeping the fork like this. I thought to take it apart, but looking inside i'm not too sure how to move forward with disassembly.

Anyone know how to fix this? I was thinking I just compress it down and pop the rubber seal back in, but I am lacking in a pair of hands to do so. Is there some kind of special fitting I'll need to get into there? Is this something for the lbs? Any input would be appreciated.

Thanks!

8 Comments
2024/11/08
22:37 UTC

1

Help with tubless conversion

Does a wheel like this need another layer of tape for tubless conversion???. The red is the factory "tape" that cover spoke holes and seams pretty solid. I feel like adding tubeless rim tape would do nothing over this yet the website for the wheel says tape would be needed for tubeless??? This is a State Bike 4130 All Road 650b wheel for reference

6 Comments
2024/11/08
22:36 UTC

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