Brand New fender I installed only a couple of months ago and I noticed a split developing right on the edge. Might not be able to see it in this photo but it's there. Same thing happened on my last fender. I'm so mad. I'm just glad I'm noticing it this early in it's development.
Why ideas on how to save this would be appreciated
Hey r/bikewrench, I’d really appreciate some collective wisdom on this one.
The wheels: Elitewheels Drive Helix CS (carbon spokes, ceramic bearings, open-flange hub). Rear wheel is the one with the issue, front looks fine. Used as intended – road riding, no crashes, no impacts.
The damage: Multiple carbon spokes are heavily abraded right where they exit the hub flange. The resin matrix has worn through and individual carbon fibers are exposed and sticking out. Both leading and trailing spokes are affected, on both drive and non-drive side. Photos attached.
What it’s not:
• No crash, no impact damage. No fall, no transport mishap.
• My LBS mechanic floated the theory that the chain had dropped behind the cassette at some point and chewed up the spokes. I can rule that out – it never happened, and the damage pattern is also not consistent with a chain-on-spoke event (no single localized gouge; it’s symmetrical fiber abrasion at the hub interface, not the spoke center).
• Not braking-related (rotor side and non-rotor side both affected).
My current working theory:
This hub uses an open-flange design where the carbon spokes pass through cutouts in the flange. My guess is some combination of:
Noteworthy: Elitewheels has since moved away from this open-flange design on newer generations, which suggests they recognized something wasn’t right.
What I’m asking:
• Has anyone seen this exact failure mode before? On Elitewheels or any other carbon-spoke wheelset?
• Does my analysis above make sense, or am I missing something obvious?
• Anything else that could cause this pattern that I should consider?
Warranty claim is already in progress with the manufacturer. Mostly looking to understand the root cause better and sanity-check my reasoning before they come back with their assessment.
Thanks in advance!
Hello. The 16" Schwinn bike I have for my daughter only has the pedal brakes and I wish I'd gotten one with the hand brake and the pedal brake. Several of their models (Elm, etc.) include the handbrake. I emailed them to see if I could call and order the part similar to what other bike models had and they said I'd have to find one aftermarket from a bike shop.
I imagine they don't make the brakes, just install them. So what size caliper brake kit is standard with those kid's bikes? I'd like it in white or black.
Thanks!
Hi all.
I am really struggling with this seat tightening lock as I took it off to add a new seat to it and now I cannot figure out how to tighten the new seat onto it. It's not your typical seat lock but I have not seen one like this before. Hopefully someone here knows how this works and I have just put it in wrong.
Thank you advance.
Hi, I picked up some bikes to work on and was interested in learning a bit about bicycles. However, I can’t seem to identify to correct item. So far I’m understanding that this is a vintage freewheel. I’m new to bikes and Reddit and would really appreciate some input and help in any way!
I recently got an e-bike and ran into a problem where the front brake line was rubbing against the rim until it wore through and the fluid spilled out. I have replaced my own car brakes before so I feel like it should be fairly simple to get a new brake line and fluid to replace the old one with. I am just completely unfamiliar with the platform of a bike and how to find compatible parts. Is there any resources someone could point me to, or perhaps chat with me to figure out what I would need to purchase? Thank you for any help!
I took it to the bicycle shop for a tune-up & then it began doing it. I returned & they told me it was the pedals, so I bought some new ones. The noise continued. I took it to a new bicycle shop where they disassembled it & put it back together. Even got a new chain, but the noise continued. I’m hoping somebody here can guide me on how to fix it.
Hi! No images unfortunately, but simple problem: when I shift gear to lower on back ring, I sometimes get just this empty movement of the lever. Like it's not gripping on to the wire at all, or misses it somehow. Usually this happens on first ride of the day a couple of times and then it sticks and works throughout the day.
Shimano Sora 2x11, do I need to open up the lever and adjust something?
This is probably dumb, but my tires say inflate to 60-90 psi for street tires, but at 35 psi they seem full. Don't want them to explode, do they really need to be that full?
Update: 60psi front 65 for the back was magic.
This is my first time doing repairs on my bike myself, I noticed a rattle when riding over bumps and when I shake my bike. I’ve isolated the sound to the rear hub, opened it up and there’s a tube?? A spacer probably. Anyway it’s just rattling around in there is this normal or how do I fix it
I have the Shimano 105 CN-5600 10 speed chain and the store provided me with this Missinglink 10 speed quick link from KMC.
When I put it on it seems like I don’t need a tool or and strength to snap it on or off, is this normal? Or is this the wrong link? Asking because they also provided me with the quick link pliers but it doesn’t seem like I even need them.
I get a clicking under torque on 4th cog only, irrespective of which chainring being used. Sounds like 2-3 times per revolution. Inspected the 7 spd SunRace freewheel (fitted less than a year ago as part of service by LBS) and it’s as shown in vid. Not exactly the same sound but wondering if it could be the source? If not, is this knocking normal or should I get a new one? Thanks in advance!
There is this damage on the non-drive-side rear triangle/chainstay area.
Seller says it was assessed by a bike shop before he bought it, was told it wasn’t a concern, and he has ridden it for 4 years since without issues. No visible crack from what I can see, but it does look like a shallow dent/crease rather than just paint damage.
Would you consider this safe to ride, or would you walk away?
Hi all,
Someone was giving this Mongoose Legion kids bike away for free and my son was ready to go up a side soon enough.
Problem is the brake level is too hard for him to pull, I can agree something seems off as it doesn't seem to stop as it should. .
It has a bmx style neck (sorry if that's not the correct term) along with a U Brake rear brake. I've already tried to adjust the lever, pad alignment and rear brake cable from some YouTube without luck. Seems the brake pad spacing to wheel is not even but better than it was but still stops like crap lol.
Now the cable is fraying, I don't mind re-cabling if possible vs buying a new bike since he's 9.
Love to make this work so we can ride together! Can I put a diff style rear brake on it?
I had to change the chain (rusted and not very flexible - I snapped it anyway) and the derailleur came off.
I didn't think to take pictures beforehand, and now I'm stuck. Can anyone help? Where does it sit?
There isn't a screw holder at the bottom of the frame and I'm 99% confident it goes here (ish). But can someone tell me if it's along the frame (pic 1) or away from the frame (pic 2)?
Also (pic 3) - the cable is likely to hit the spokes/cassette - I assume I can just cut the cable and reattach a metal bit?
If it helps - Apollo frame. Please excuse the cassette, best I could do (and is much better than it was!).
Thank you
Hi zusammen,
Mir ist beim Putzen meines Bikes diese kleine Abdeckung entgegen gekommen. Weiß jemand woher die kommt?
The front wheel of my bike is rubbing against the mudguard at the front. It looks to be an issue with the mudguard rather than the wheel. Any ideas how to fix this?
EDIT: got it fixed thanks for your suggestions, not sure how the struts popped out but fixing them worked perfectly!
I crashed while riding my bike and the tire did this weird, bendy thing. I removed the tire and I could easily just replace it but I'm wondering if it can be fixed before I do. It looks like the metal is just bent out of place, so maybe I could bend it back? Would that ruin the tire?
I have this bolt that I need to put on my crank. What tool do I use to turn it in. I don't see anythibg that would hold on to an allen key