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Questions tagged [replacement]

Replacing parts, compatibility with existing or new equipment, finding suitable substitutes for old OEM parts, and so forth.

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23
votes
7answers
90k views

When should you replace tires after getting a flat?

A nail punctured my rear wheel tire today while riding. My question is, how do you know if you need to replace a tire or simply repair it with a tube repair kit? The hole looks pretty nasty. The cap ...
12
votes
6answers
4k views

Should I replace my bicycle tires if they have not been inflated in multiple years

A little over 5 years ago I bought a Magna bicycle. Within the first summer of riding it the rear brake fell apart. I finally got around to having he brake fixed this past month but I am worried about ...
11
votes
6answers
4k views

Warranty on lock damaged during attempted theft

Someone attempted to steal my girlfriend's bike tonight and they damaged the lock. Do you guys know if we can use the warranty to get it exchanged? The lock has a 2 year warranty and I'm planning to ...
8
votes
5answers
2k views

Broken stem tube – LBS “just” lowered handlebars. Is this safe?

I have asked this elsewhere on the internet as well, but this is the Stack Exchange adaptation. I have three related questions and I'll try to make it clear what they are. Here's some background ...
8
votes
5answers
2k views

Fix / clean or throw away tire with 30+ thorn punctures?

I recently rode through a horrible thorn patch. I came out with 2 flat tires. Upon examination, I found that the tube was punctured in 10+ places. Throw away. The tire has 30+ small thorns in it. ...
8
votes
2answers
2k views

How to replace Avid BB7 brake pads in “new” calipers?

How do you get new BB7 pads to install in the new caliper bodies? By "new" I mean the ones with the spring steel "cap" on the opening at the "top" of the caliper unit (the side opposite the axle). ...
8
votes
2answers
7k views

How many spokes can break before I need a new wheel?

3 of the spokes on my wheel are broken. How can I tell if the wheel is still good to use? Can I just replace the spokes or do I need to buy a brand new wheel?
6
votes
3answers
2k views

How to improve/restore vintage Peugeot bike, or is it even worth it?

I've got an old Peugeot bike I've been riding, and I like it but I'd like to make it better for long rides. I'd like to replace some parts, the steel rims aren't good for braking and I'd like ...
6
votes
3answers
6k views

Derailleur Pulley Wheel Compatibility

I can't find replacement pulley wheels for my derailer that are explicitly made for it. Should I be safe replacing them with a set with the same number of teeth (i.e., the same diameter) and targeted ...
6
votes
1answer
7k views

Replace a 52/36 crankset with 50/34

I'm looking at purchasing a new bike with a 52/36 crankset on a 11-32 cassette. I've grown accustomed to a 50/34 crankset on the same cassete, and for the type of riding I do in the PNW (300-400ft ...
6
votes
1answer
3k views

When do my brake pads need replacement?

I have a bike that is almost two years old. It still has the original brakes (side pull caliper brakes), which seem to still be functional. However, they are worn and I am going to be doing a lot of ...
6
votes
1answer
161 views

Are granny gear chainrings supposed to have directed teeth (i.e., be non-flippable)?

I was replacing a worn-out 34-teeth chainring on my MTB crankset. In the course of the work, I detached the granny gear chainring (22-teeth). Compared to the big chainring, which has all these ramps ...
5
votes
4answers
2k views

Can't find any replacement original chainrings (SG A-52-42-30) . What can I use instead?

I have an early 2000's Giant OCR 2 roadbike (3x8 speed) with worn out chain rings on the Shimano Sora FC-3303 triple crankset. The original rings are the SG A-type, 5 bolt, 130 mm BCD in 52T-42T-30T ...
5
votes
2answers
132 views

Refurbishing everyday bikes

I'm looking to get 3 family bikes functioning as well as possible. I've replaced all the cables, but now want to get the gears as close to new as is sensible. All bikes old >10 years I would guess:...
5
votes
3answers
6k views

What groupsets are compatible with my bike?

Question Speaking generally, what things do you need to check about your bike (e.g. rear hub width and type, braze-on vs clamp on front derailleur attachment points, etc) in order to determine what ...
5
votes
1answer
554 views

Should replacing the rear derailleur on my 80s road bike with a Campy Nuovo improve shifting?

I'm considering replacing the Simplex SX410 derailleur for a Campy Nuovo Record on my early 80s Mercier (6-speed cassette). Reason being that there has been for several years now a problem shifting ...
5
votes
1answer
10k views

Upgrade/Replacement options for Cannondale Headshok DD50?

I have an older Cannondale that I love. It's an F600 comp (the special edition one in pumpkin orange), with a DD50 front shock. The problem is that the DD50 is WORN as all heck. Even when locked ...
4
votes
2answers
7k views

What do I need to know when replacing my cassette?

I'm looking to replace the cassette on my bike with a smaller version, as I find I'm only ever using the top ring of my chainring (except once recently during rain-ageddon). What do I need to know ...
4
votes
4answers
212 views

How to mark pins that were once extracted on a chain?

Like many cyclists, I rotate a set of chains (two chains every 1000 km in my case) to minimise gear wear and have an opportunity to do a deep chain wash every now and then. When the time comes, I ...
4
votes
2answers
185 views

How important is it to re-space my rear hub?

I just bought new wheels for an older Schwinn frame. I don't know the date it was made, but it's a steel frame and as built it had stem shifters and a cup-and-cone bottom bracket, etc. Probably from ...
4
votes
2answers
757 views

Info for replacing a shift cable housing

I have a Raleigh MT 200 - 1994. I lost the segment of the housing for the cable of the rear derailleur (Shimano STX) that goes to the shifter, see red in the image 1. I would likely purchase a ...
4
votes
1answer
5k views

How do to determine if an adapter is needed for disc brakes and rotors?

I have an old older (not too old) bike that already has disc brakes, but I would like to replace them with a totally new set and new rotors. How can I determine if a given replacement (caliper and ...
4
votes
1answer
1k views

Shimano hydraulic disc brake lever and caliper compatibility

My bike has Shimano BR M775 brake calipers and BL M775 brake levers. The right lever for the rear brake has a broken screw in the reservoir, so it needs replacement. As BL M775 is no longer available ...
4
votes
1answer
577 views

Denied warranty claim on carbon bike due to impact?

I saw a little crack on the bottom section top tube of bike which is a kestrel talon. I took it the bike shop to see if it was covered under warranty. I have fallen once or twice from the bike but I ...
4
votes
3answers
7k views

Buying brake levers, how do I find the correct ones for my bike?

I took a hard spill the other day on my mountain bike and snapped my left hand brake lever in to pieces. The ones that snapped are stock alloy rubbish that came with a Specialized Hardrock 2010 Disc ...
4
votes
1answer
593 views

Did I just ruined my rear shock? fox float :(

My shock was quite ok, but I still tried to service it. After dissembling, it has absolutely no oil in it. I filled with 5 ml of fox fluid, put everything together. After installed to the frame ...
4
votes
1answer
249 views

What do I need to know about this rubber stopper?

I recently bought a used Diamondback Sorrento. One day I rode it over a sizable bump and heard a popping noise. Upon inspecting my bike I noticed the following: As far as I can tell, I lost a ...
4
votes
1answer
10k views

Putting wider wheels on a hybrid bike

I've recently had a bike donated to me by a friend so I can start commuting to work. It's a hybrid style bike, and uses 700x32C tyres. My ride to work is along a pretty bumpy, muddy canal path and my ...
4
votes
2answers
3k views

Using only the brake lever, separated from an integrated shifter/brake

I have an old Shimano STX integrated shifter/brake. The shifter part is broken. Can I separate the shifter part, with reasonable effort, so I use only the brake and get a new shifter? From what I ...
3
votes
2answers
2k views

Replacing the bike seat on my mid-1990s Trek mountain bike

I have an old Trek mountain bike, about 22 years old but still in great shape. I want to replace the original "Avocet" seat with a more comfortable seat. Are bike seats universal so I could buy ...
3
votes
3answers
263 views

How do I remove this style of bottom bracket?

I am attempting to remove and replace the bottom bracket from a cheapish 1970s American department store road bike. I've gotten the lockring off, and now the non-drive side looks like this: [Whoops, ...
3
votes
1answer
679 views

Fiido D2: shock absorber broken

I bought almost an year ago a Fiido D2 bike. I use it everyday for my commute to work and unfortunately it broke. I brought it to a bike repairer and he said that there's nothing he can do. The only ...
3
votes
1answer
2k views

Vintage 1979 Peugeot roadbike rear derailleur change

Hello guys, The rear derailleur (6 speed) on my bike (picture attached) shattered all of a sudden while biking uphill after a few months of problems with the chain not fitting immediately on the ...
3
votes
2answers
324 views

What type of rear derailleur is used on my bike?

Direct mount or hanger mount? Sooo, one glance at these photos will tell you why I'm asking this... Needles to say, I need a new one and I'd like to know what I should be looking for. It's for a 21-...
3
votes
1answer
3k views

Suitable Shimano integrated shifter/brake replacement for old STX

I am looking for a replacement of an old Shimano STX right shifter, from a Raleigh MT-200 (I am pretty sure this is accurate). It is an integrated shifter, 7 gears, cantilever brakes. Other than ...
3
votes
1answer
26k views

What are my options for replacing/upgrading my MTB front mech?

I recently damaged my front mech, a Shimano Acera, top swing, bottom pull, triple chainring. The rear cassette is 8-speed. So I need to replace this front mech. The original Shimano Acera is probably ...
3
votes
1answer
380 views

Are road bike shifter hoods compatible across models?

I've been using Shimano Sora Shifters since about 2012 .. probably one generation before the current (https://bike.shimano.com/en-EU/product/component/sora-3500/ST-3500.html) The rubber covers are ...
3
votes
2answers
2k views

Expected Lifetime Mileage: Bottom Bracket and Headset

I'll declare a personal interest in asking this question, relating to a dispute with a national UK bicycle retailer. I'm not looking for advise on how to resolve the dispute, nor for evidence / ...
3
votes
2answers
9k views

Can I keep using my outer tube tyre with a hole in it

I was riding down a nice smooth bike path the other day (at speed), and there was a branch full of thorns about 10m ahead of me, straddling the path. I couldn't have gone around it. One of the thorns ...
3
votes
1answer
186 views

Alternative replacement cable for classic sturmy archer 3 speed shifter?

I have classic sturmy archer 3 speed trigger with a snapped cable. Unfortunaly, these aparently need special cables (endings) http://www.sturmey-archer.com/en/products/detail/classic-trigger Do I ...
3
votes
1answer
94 views

Options for new equipment when replacing older parts that are end of life?

I have a 2004 Giant OCR Touring. It is a used bicycle. These old touring bikes are a mix of mtn-bike and road bike parts. Most typically a road front derailleur/crank and a mtn-bike rear derailleur. ...
3
votes
2answers
2k views

How do I find the right derailleur (gear-mech)?

I have a 9 x 3 speed mountain-bike. The derailleur got broken (and was since lost), I'm trying to find a new one. What do I need to go by to ensure I get a good fit? The rear-casette (sprokets) range ...
3
votes
1answer
110 views

Need help - changing tires/rims on Origin8 Intersekt 7

I bought an Origin 8 Intersekt 7 two years ago. Denver has so much construction, and "goat heads" that I've popped my tires 7 out of 8 rides. Needless to say, I'm way over it, and haven't ridden the ...
3
votes
2answers
2k views

How to remove old kickstand

I'm trying to cannibalize an old bike but am having trouble removing the kickstand: I've tried screwing the bolt counter-clockwise†, which indeed made it looser, but it's not getting loose enough to ...
2
votes
3answers
3k views

9 speed Shimano shifter with 7 speed drivetrain

Can I use a 9 speed shifter with a 7 speed drivetrain, with good shifting and without needing complex adaptations? I am considering that as an alternative for this need: Using only the brake lever, ...
2
votes
2answers
187 views

What Type of Brake Pads Should I Look For?

The brake pads on my bike have worn out, so I ordered a new set online, and after I spent a lot of time trying to adjust them, I noticed it won't work as they're not long enough to grip the rim when ...
2
votes
4answers
6k views

Which Crank Brothers cleat do I need?

I ride these pedals: which came with these cleats: Now I see that Crank Brothers are selling their "Premium" cleat: I'm ready to replace my cleats. Is the premium cleat compatible with my pedal, or ...
2
votes
1answer
93 views

Help with multiple item compatibility

I have a 2004 Jamis Dakar 3.0 My front wheel was stolen a few weeks ago and since I am not the best at bike mechanics I had a few questions. Wheel: When looking for wheel do I just need to look for ...
2
votes
1answer
95 views

Rims with replaceable braking surface?

Despite the movement to disc brakes in these days (even in the road cycling world), many still use rim brakes. Heck, even I still see rim brakes on our fellow MTB riders here at my place. What I'm ...
2
votes
1answer
407 views

Shimano BR-T4000 not compatible with frame pivot stud

I tired to replace v-brakes on my random cheap frame as spring regulation things started to fall apart. For replacement I picked front+rear set of Shimano BR-T4000 v-brakes because v-brakes are so ...