r/bikewrench • • Mar 06 '25

Why would the inner tube bulge out of the tyre?

Post image
2.4k Upvotes

Is there any reason for the inner tube to bulge out of the tyre like this? I pumped my wife's bike to 35 psi as per the specification on the side of the tyre usijg a pump with a pressure guage. The tyre is obviously not mounted correctly on the rim any longer but would this typically be indicative of a defective inner tube, tyre, or rim? I've never had this happen but would like to make sure it doesn't happen again once i replace the tube.


r/bikewrench • • Jun 28 '20

Solved Can someone please help me? My bike can’t pedal forwards, only backwards. Is it my gears or is it my freewheel?

2.4k Upvotes

r/bikewrench • • Jun 03 '26

whoopsy

Post image
2.2k Upvotes

Tyre popped off a few hundred metres into a ride after fitting it. I know there are a few variables, but would the most likely cause be user error? I'm scared of using the tyre again lol . (stock tyre is Maxxis Ikon 29x2.2 wire bead. This tyre is Ikon 2.2 folding).


r/bikewrench • • May 29 '25

Solved Question: What's this red strip on my tyre?

Thumbnail
gallery
1.8k Upvotes

Thought at first I rode through red paint, but now I'm wondering if it's the manufacturer's way of saying "replace me". The brand is "Midas".


r/bikewrench • • May 23 '22

Solved Stupid question. Don't upvote. Just bought a bike on craigslist and can't figure out how to adjust the saddle post height

Post image
1.8k Upvotes

r/bikewrench • • Feb 04 '21

Solved Super Silly Question, but How Do These Turn On?

Thumbnail
gallery
1.5k Upvotes

r/bikewrench • • May 25 '24 Take My Silver

Solved Why do my brand new GP5000’s have a coat of fur?

Post image
1.4k Upvotes

I just upgraded from Thick Slicks to Continental GP5000’s. The tire was fresh out of the box two days ago, I rode yesterday on my commute. Any idea why they have what looks like a thin coat of “fur” on them? Are they SUPPOSED to be like that???


r/bikewrench • • May 04 '26 Polished Gold Turd

Cleat fiasco

Post image
1.4k Upvotes

Hi all. The astute among you will notice that there is no bike attached to my new pedal which is attached to my new shoe. The particularly astute among you may also notice that said shoe is the right foot while pedal may or may not be the left. Compounding the issue, I didn’t fasten the cleat securely enough to this shoe to prevent it now sliding around as I try to dislodge the pedal. Am I totally screwed? Will my LBS rightfully scoff at but ultimately save my sorry ass? Thanks!

Edit: 12 seconds after posting I used a little Allen key to pry it off. Thank you to those with suggestions. My shame is great.


r/bikewrench • • Mar 17 '25

Am I the idiot?

Post image
1.3k Upvotes

I just got my Specialized Rockhopper Comp 29, while assembling I encountered a problem. My left pedal won’t thread…I contacted customer service and they were no help at all.

Upon closer inspection, it looks like the crank isn’t threaded correctly because the pedal threads fine backwards…Am I just dumb? Am I missing something?

Thoughts? Any help is appreciated 🙏


r/bikewrench • • May 14 '21

Solved Have you seen anything like this? (In comments)

Post image
1.2k Upvotes

r/bikewrench • • Apr 26 '21

Trying to find a nice front rack for my old Peugeot

Post image
1.0k Upvotes

r/bikewrench • • Dec 26 '23

Went to a Bikepark 3hrs from home - This happened on the first descent

Thumbnail
gallery
977 Upvotes

This is my friend's bike. He was riding behind me so I did not see the crash, but according to him the Fork Arch randomly snapped while riding a turn and threw him OTB.

He will contact Fox to see what they will say, but we cannot wrap our heads around the fact that it snapped on both sides. I have scanned forums and have not found any similar situtations, could this be a material defect ?

And regarding repairs, do you think that only the lowers can be changed, if after inspection everything else lools good ? Does Fox sell these as spare parts ?


r/bikewrench • • Oct 26 '25

Solved Can the rim be saved or is it done for?

Post image
923 Upvotes

The spokes got ripped out in a crash


r/bikewrench • • Sep 03 '20

Solved Purple Bianchi! It’s been sitting in my shed for the better part of a decade. Worth fixing up?

Post image
921 Upvotes

r/bikewrench • • Aug 03 '19

Friend's freehub turned fixie mid ride, this was our tool to get the 16mm nut out of the hub. If this is the wrong sub I'll remove it.

Post image
919 Upvotes

r/bikewrench • • May 15 '26

Been a mechanic 7 years and i didn't know this even exists

Thumbnail
gallery
901 Upvotes

Its a tire-tube. How long has this been a thing? Am i stupid for not knowing this is a thing? Honestly i really dont see the point


r/bikewrench • • Mar 10 '20

I posted here a few days ago with a cracked steerer looking for help and advice. I'd just like to follow up with a thank you to everyone, especially u/vpldazzamac for shipping me his old fork for just the price of postage. I'M BACK ON THE ROAD BABY!

Post image
899 Upvotes

r/bikewrench • • Apr 30 '26 Bravo

diy front rack

Thumbnail
gallery
792 Upvotes

looking for ways to properly attach the skateboard deck to the legs


r/bikewrench • • Aug 17 '20

Any idea what’s going on with the fork?

791 Upvotes

r/bikewrench • • Nov 23 '20

Question in comments. Not really a technical bike problem but rather a bike fit problem. Wrist pain while biking?

Post image
750 Upvotes

r/bikewrench • • Mar 01 '20

Thanks for the help Bikewrench! She was taken from me but I built her back up

Post image
731 Upvotes

r/bikewrench • • Apr 05 '21

Solved What is the correct order for putting these parts back onto my rear axle?

Post image
725 Upvotes

r/bikewrench • • Jun 25 '20

Saved from the trash

Post image
715 Upvotes

r/bikewrench • • Jul 08 '24

Can you really fit every tire onto any rim? I tried everything, pre pump , super long tire leavers, soap etc. this thing won’t go over ever. Questioning if it even can

Post image
711 Upvotes