Questions tagged [repair]
Repairing your bike when something is broken. REPAIR is not the same as MAINTENANCE, a separate tag. Repair is what one does only when something is broken. Maintenance is what one does on a regular basis.
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Shigura - Can i use a Shimano XT Lever on A Magura HS33 Hydraulic Rim Brakes
Good day to Everyone,
My Magura HS33 Lever on my ZHI Z3R trials bike broke, and i was wondering if i could replace it with a Shimano Deore XT BL-M775, as i have it stocked on my parts bin.
And if i ...
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Rear dropout nut constantly slipping
I've had this issue with my Kalkhoff Agattu (now out of warranty) basically since day one. The nut on the drive side of the rear dropout doesn't hold the wheel tightly enough, and it gets gradually ...
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Fixing a winter tire with poking studs using tube patches. Will it work?
My rear tire, a Schwalbe Marathon winter K-guard 120 studs, had some studs poking through the inner casing of the tire after approximately 1300km/1 winter season. It happened on two separate occasions ...
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Promax Headset Adapter 1", 1-1/8
I have a broken Cannondale 2007 Bad Boy Ultra, will the Promax Headset Adapter 1", 1-1/8" give me the opportunity to replace it with a non-shock standard fork.
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Replacement for VP-BC73E Bottom Bracket
I cannot find my bottom bracket online anywhere. It's called "VP-BC73E ". However, I can find loads of "VP-BC73" (E is missing). Would it still fit/work?
I found this information ...
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Freehub removal
I need to remove this freehub (see picture), to replace a broken spoke, however, it is an old bike and I am unsure how to proceed? I've managed to removed the cassette using a chain whip and a 32mm ...
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Mavic Helium clincher wheels: Replacement Spokes
I have a Mavic Helium clincher wheels and a broken drive side spoke. I need a new one (and would be happy to buy a couple of them including non-drive side) but everywhere I look it seems I would need ...
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Do I need a specific Sturmey Archer indicator chain/rod and cable?
Like the title says, I have an old refurbished bike from the 50's I want to get working again. It has a Sturmey Archer 3 speed shifter and internal gear hub, and that's about all I know about it. It ...
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Can someone please give some advice to help find a new crankset?
I apologize in advance if I mix-up some lingo, I have almost no experience in fixing bicycle drivetrain.
Previously I had Comet CKM-7159 as crankset (I managed to find this datasheet that seem to ...
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How to put a tube in a used tubeless tire
I switched to tubeless tires about a year ago and I love them. A couple months ago I had a problem with the back tire and had to pull it off the rim for the first time.
There were literally hundreds ...
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Stainless steel ladies bike frame failure?
i am new to this group and this is my first post. My Japanese Miyata ladies bike had this problem for so long time. The down tube had come out for about 3mm from its connecter. It looks like there ...
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Carbon Damage on bridge, repair possible? If so, what steps are needed?
This is a follow up question to:
Attachmentpoint rim brakes carbon bike, sratches/crack?
So. My bridge on my x lite 4 seems to be delaminating. Unfortunately Rose does not want to honor their six year ...
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What color can I spray on top my green bike?
I want to do this without having to remove/strip having to strip paint from the frame which is already flaking off slowly.
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Can I fit a damper to sr Suntour spring forks?
I bought a GT avalanche 3 second hand with seized forks. When I stripped them down to clean, there is a coil spring in one side only and no damper fitted.
Can I buy a sr Suntour damper and fit that to ...
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Shop replaced my chain, bike had less than 400 miles
This past spring brought Canyon Endurace8 with just under 400 miles on it in for a tune up to get it good to go for a bike fit and to fix anything I may have not done properly when I assembled it, ...
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Front hub motor makes clacking noise only when nut tightened
I have a Bafang SWXK2 e-bike front hub motor. It has been use for 7 years, about 10 000 km ridden and has worked well so far. But now it is making a clacking noise.
Symptoms:
Clacking noise ...
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Glue for carbon fibre
Can anybody recommend a glue (perhaps a type of cyanoacrylate) for bonding carbon fibre?
I'm not looking for advice on how to do the repair itself. I just want to know what brand or type of product (...
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Bent Reynolds 531 Simplex stays at dropouts
I have just bought a Reynolds 531 Simplex bike frame and noticed the left chainstay and right seatstay look slightly bent at the dropouts. The right dropout appears to be incompletely inserted into ...
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Replacing crank/spider on belt drive bike (stripped pedal hole)
Edit: The bike is in a place with good mechanics but few shops. As I'm visiting the USA soon, I was thinking perhaps of getting the parts there and having someone competent locally do the repair. I ...
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Shimano 105 r7000 front derailleur hard and clunky shifting, shifter harder to shift
A total newbie to DIY bike repair here, and my Shimano 105 r7000 FD is shifting really harshly after a wash. Washed it with dish soap plus water solution, however I did not give the FD any specific ...
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Is it possible to repair a dent on an aluminum frame using carbon fiber?
Every dent is unique so I think it is ok to ask this question once more.
I have a Stevens Superflight 2020 which has a dent on a frame:
My plan is to create some carbon fiber sleeve around the dent, ...
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Mounting a tubeless tire using fire/explosion?
When I try to inflate a tubeless tire which I have just installed, it may or may not work: some tires leave a wide gap near the rim through which the air escapes without doing anything useful. This is ...
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Nut dents on stamped dropout
Problem with stamped dropouts on singlespeed. There were dents from the nuts. It became inconvenient to operate the bike (the wheel is poorly fixed and constantly moves out). It is impossible to ...
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Shimano Deore front derailleur return spring broken?
For a couple of days now, I am no longer possible to shift to the smallest chainring of my bicycle.
There is simply no response at all (no resistance, no click-sound, nothing happens. The indicator at ...
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Bleeding Promax Decipher Hydraulic Brakes
I have a Promax Decipher Hydraulic Rear Brake on a bike I am trying to repair, but no idea how to bleed the brakes. I have tried to find something out there in internet land but the two videos I found ...
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What are the dimensions of a Trek Marlin 7 rear wheel quick release skewer?
My Trek Marlin 7 is size large and has 29-inch wheels. I want to replace the broken quick release skewer of the rear wheel and I need help finding a suitable replacement.
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My chain tool left a divot on my replacement pin. Is this normal?
I recently did a deep clean of my shimano 8 speed road bike chain by removing it from the bike. I used a chain tool to push out one of the pins (not the black one). I then replaced it with a 8 speed ...
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14 "Trashed" bikes acquired for free. Worth repairing and reselling? What do I look for?
Very new to this, bike repair specifically. I tried my best with the tags. I'm mechanically inclined, like to tinker, and have many tools (not bike specific). Learning and time aren't really an issue. ...
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Why does a chain riveter have 2 separate pins to hold the chain
My (broken) chain riveter has 4 pins to hold the chain
I always used the 2 on the left side since there is the possibility to apply counter-pressure with the screw. What is the purpose of the right ...
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How should I go about getting parts for this bike?
Backstory
I moved into a place and there was an old bike with the wheels & handlebar off. The landlord said I could throw it away but instead I want to try and fix it but it turns out I don’t know ...
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Checking dynamo-wire contact
After my front wheel got damaged I took it to the BS where I purchased it and they replaced it.
However, after riding it I have noticed that with the new wheel the dynamo hub (Shimano Nexus) works ...
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How to adapt a spoke salvaged from a 26" wheel to a 24" one?
This evening in trying to true a rear wheel run over by a car I managed to snap a spoke on a 24-inch rim.
I have some salvaged spokes and spoke nipples from a destroyed 26-inch mountain bike rim, and ...
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How to remove the pin on the lower end of the shift cable, to replace the derailleur
I need to replace the rear Shimano XT 7100 derailleur what broke in two at the base. It is attached by the single screw only but there is a metal pin fitted over the tip of the gear shifting cable. ...
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Fixing the thumb lever of a Shimano Rapidfire SL-M4100-R - doesn't retract if shift >1 cog
New bike with a SL-M4100-R deore rapidfire shifter, with shift indicator, 10 speed. Shifts fine both ways 1 gear at a time. However, using the thumb lever (moving from smaller to bigger cogs, harder ...
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The spin of crankset creates periodic sideways wobble of the whole bike. What is the problem?
I have enountered a strange problem with a fixed gear build: when the wheel/crankset spin, the crankset's rotation creates a periodically pulsating sideways wobble on whole the bike. It can be felt ...
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What tool should I be using on this bottom bracket?
Belongs to a fairly basic kids bike. Bought second hand and was able to remove it using almost my fingers alone, with a little assistance from a flat head screwdriver.
After replacing the bearings, ...
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Adjusting a front derailleur in a Velomobile
The front derailleur in my Velomobile needs adjusting and as it is a pain to reach it I rather not do it the try and try again method if I can avoid it.
The derailleur is a standard one, only the ...
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Why did my inner tube suddenly start leaking air?
As the name suggests, my front bike tire's inner tube has suddenly started leaking air for no apparent reason. I used my bike on Sunday on a fairly rough trail, but everything seemed fine afterwards. ...
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Which freewheel/cassette does a stock Kent Seachange have?
No, I did not buy the wrong remover tool! Stop laughing!
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Is my mini pump broken?
I have a mini pump for my bike - I guess for around 3 years now. It's started to give me trouble recently - it's for a presta valve and it screws on, rather than locks on. For some reason when I ...
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What type of bike is this? Brand?
I found this bike and I don't know anything about bikes but I was hoping to figure out a brand for it.
Also, it doesn't have working breaks; I want to repair the brakes myself but I don't know where ...
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Montague FIT folding bike with “snaking” frame
My 2012 Montague FIT folding bike has started to “snake” especially when riding at speed downhill. I have tightened the frame quick release and inspected and tightened the pivot nut but the snaking ...
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Is 3mm tubeless puncture too big to seal?
I have a small slit in my MTB tyre (approx 3mm long x barely 1mm wide) which won't seal.
I had to put a tube in when the puncture happened as it wouldn't seal, but I've now taken the tube out, cleaned ...
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Burley trailer - Repair cut in plastic window
I am looking for a way to repair a cut in the plastic (polyurethane?) window that serves as a rain/wind guard on a Burley trailer:
I do not care if the fix is ugly or isn't see-through like the ...
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Tube size inquiry for my bike
I’ve taken out the old tube which measures 700x35 45c but I could only find 700cx35 38. Will this fit ok? Many thanks
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Broken screw thread on GRX 800 crankset
I made my gravel-dream bike few month ago by hand.
I followed all the user-manual sheets from Shimano in order to properly mount the GRX 800 crankset and the pedals on it. I respected the tightening ...
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J.c higgins bike [closed]
I also have the.model #, 50545120 and serial #
0408039.
I would like to find out any info please.
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As an enthusiast, how can I make a bicycle more reliable/less maintenance-intensive for use by a casual cyclist?
The details of this question may end up being quite specific to my exact circumstances, but I think the information presented in the answers will still be usable and interesting for the general case.
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How to get my hydraulic disk brake working again?
I have a bike with a hydraulic disk brake and have been observing some degraded performance recently.
Yesterday I finally had a close look and noticed that one brake pad permanently touches the rotor. ...
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Is this a crack? Came off my Carbon frame for the first time
A guy on his phone just walked out in front of me into the bike lane and I plowed him at about 30kms. I walked away without a scratch and he absorbed most of the impact but my bike did hit the ground.
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