Questions tagged [mountain-bike]

Mountain bike (MTB) can mean almost any kind of off-road bicycle. Wide knobby tires, flat handlebars, maybe shocks, probably a sturdy frame...

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1answer
55 views

When I am pedaling hard my chain jumps but doesn’t go to higher or lower gear

I have this problem with my bike when I put an amount of pressure on my pedals the chain kinda jumps but doesn’t change to a higher or lower gear and it usually happens when I go on 3X7 and 3X6 when I ...
0
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0answers
52 views

Looking to start mountain biking. Any advice? [on hold]

I am looking to start mountain biking and I am a college student so I have a tight budget. I found a used (ridden about 3 times) Felt 7 eight for sale on Facebook. My budget is about 500 for the bike ...
-2
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0answers
59 views

Is it worth it to spend $640 on a GT Verb sport for the Full suspension or should I just get a good Cheap Genesis [closed]

I enjoy going fast on downhill off road trails that usually have lots of rocks. My Huffy is not handling this very well and I would like to get a durable, high end bike with full suspension, and I don’...
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1answer
49 views

Rear rockshox thru axle. How to remove it if skewer got broken off?

Hello, im new here, how can I deal with this issue any suggestions? Thanks in advance.
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1answer
50 views

KNOG BLINDER ARC 5.5 battery replacement

Can anyone please tell me how I would go about changing the battery over in my light please!!! I have so far taken off the lens cover and have undone the 3 x 1.5mm Allen screws to release the outer ...
2
votes
6answers
222 views

The palms of my hands really hurt

I understand that the pressure on my hands causes it. I also understand how the nerves run through my hand. What I don't understand is how to implement the advise of, "Take the weight off your hands" ...
1
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1answer
62 views

Clean brake rotors and pads

I've seen plenty of how to clean my chain, but how do I clean muck off my brake rotors and the inside of the assembly that holds the pads? I see some posts specifying isopropyl alcohol, but that ...
0
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1answer
105 views

How to keep my feet cool in cycling shoes?

I went mountain biking yesterday, when the temperature was 100F / 38C. This is in Southern California in June, so that's not that unusual. The only issue I had is that my shoes get uncomfortably hot, ...
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2answers
100 views

Does my chain need to be replaced because it has looped itself many times?

A snapped off derailleur caused my chain to loop itself so unsure whether it needs replacing.
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1answer
70 views

Should I replace the bent Derailleur hanger?

My friend (also on a bike) collided with me while we were riding together. As a result of the collision, I now have a bent derailleur hanger. Should I replace it alongside the Derailleur? The bike ...
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3answers
169 views

Can this frame be used or is it done?

I have a cheap mens Huffy mountain bike which I noticed has 2 holes in the frame. Would this be too unsafe to ride?
2
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1answer
88 views

Will replacing 26“ suspension fork with rigid 29”

I have an old Nashbar mountain bike with a suspension fork. I would like to replace the fork with a rigid one. The suspension fork weighs tons and is too squishy since I ride it mostly on trail paths. ...
4
votes
10answers
1k views

Can I install a back bike rack without attachment to the rear part of the frame?

Can I install a back bike rack without attachment to the rear part of the frame? Also, if someone can clarify, whenever I google bike rack I get hits on racks designed to carry bikes on a car ...
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votes
2answers
77 views

Wheel, tube and tires

My wheel shows ETRO 622 * 19. The tire on it is 700*38c. I want to change tire and tube such that the bike becomes capable for 50% road bike and 50% off road. What size of tires and tube should i ...
6
votes
4answers
387 views

Buying a bike that has been idle in a garage for years?

A close friend who can no longer ride (illness) asked me if I wanted to buy his 2009 Trek Fuel EX 9. This bike has been hanging in his garage for 9 years and was only ridden for a couple of hours ...
0
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1answer
58 views

Chain/rear derailleur off

I haven't been on a bike in years, and just picked up a used one to get into riding (2013 Specialized Hardrock). The rear gears aren't shifting properly, it seems to only move between the 2 smallest, ...
1
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2answers
170 views

How can one stop brakes from screeching?

I'm hearing that annoying sound when you use your brakes and you get the chills from the screeching sound. I have disk brakes and a relatively new bike. It happens to be front tire shown below. I ...
0
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1answer
38 views

Vintage shimano chain ring part numbers

I have several vintage NOS chain rings with part numbers. Is there a way to look them up to see what the specs are? Example: I have 4 rings with 24T, 68BCD: two of them have part# 17L24000 stamped ...
0
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3answers
183 views

How can I stop someone borrowing my bike anymore? [closed]

There's this kid I've been riding with for quite some time that keeps borrowing my bike non-stop leaving me riding his broken bike. Not that I dislike him riding my bike or anything, is just that ...
0
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0answers
38 views

What rear axle do I need?

I had the chance to buy myself a bargain the other week. It was a Muddy Fox Courier Comp mountain bike – I had one when they first came out. The thing is I need to get a rear axle long ...
3
votes
1answer
103 views

What is the average reduction in air pressure for a mountain bike tire?

I've noticed that my mountain bike tire looses air, not because of a leak, etc., but just naturally as time progresses. Does anybody know the average psi loss over time for a mountain bike tire and ...
4
votes
2answers
517 views

How to install a cartridge bottom bracket (threaded) in threadless shell?

Is it possible to install a threaded cartridge bottom bracket in a threadless shell which has a PF30 installed?
0
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0answers
158 views

Please help identify this frame

I would really appreciate any information that could help to identify this bike frame. I bought the frame at a garage sale and was told the frame was a "specialized" possibly s works but never had ...
2
votes
1answer
76 views

Single chainring conversion issues

I've got a Specialized Crosstrail Elite. I want to get rid of the front derailleur and go for a single front chainring. Its a 68mm BB shell but needs a 73mm BB with spacers. It currently has a FSA ...
2
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3answers
170 views

Can the Shimano front derailleur prevent a gear of my bike from working?

I recently bought a used rigid mountain bike, I'm very happy with it but I realized yesterday that I couldn't access the smallest chainring. This one has a total of 3 front gears, but only numbers 2 ...
1
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1answer
105 views

What frame does my mountain bike have?

I'm trying to work out what my frame is, and what size bottom bracket it needs (68/71/73 mm), and the recommended spindle length. I've attempted to measure both and it seems to have a 68/115 bottom ...
12
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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 ...
3
votes
1answer
60 views

Octalink v2 bottom bracket on italian shell

I'm re-building an old Italian Bottecchia mountain bike which has Italian BB shell (70mm) and the previous bottom bracket was a square taper with 130mm spindle (measurement confirmed via calipers.) I ...
1
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3answers
244 views

Can I ride a big bike?

I am a MTB beginner and I just bought a used Giant stance 2. I knew from the beginning the bike is bigger than I should have, but it was a good deal. The bike frame is XL and I am 6’. Based on Giant ...
0
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1answer
59 views

Can I upgrade my 2007 front suspension?

I just bought a 2007 Trek Fuel EX5 used but the front suspension dial is cracked and makes it difficult to change the give. The current forks that are on there are RockShock Tora's. Would it be ...
0
votes
0answers
64 views

Dyno Mountain Bike?

Did Dyno make Mountain Bikes? I always thought of this one as a MTB. Can anyone give me more information about it? It has this number on the bottom: 9552795 and 21 speeds with 26 inch tires. It's all ...
3
votes
1answer
76 views

Rockshox Reverb dropper seatpost squashing from new

I have a new bike with factory-fitted Reverb Stealth dropper seatpost. Having never had one before, I would like to know what movement you would expect on a seatpost if any. If I lift the bike up by ...
0
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1answer
59 views

Mountain bike suspension forks

I am thinking about changing out the worn suspension forks on my quite old Specialized Stumpjumper which has rim brakes. I found some forks online (RockShox 30 Silver TK Fork: 26") and some of the ...
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2answers
56 views

Deore RD M592 with old school shimano trigger shifter

I have an old school Devinci Coyote (2002) whose Alivio rear derailleur is having trouble shifting properly. I was wondering if I could replace it with a new Deore M592 without having to change the ...
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1answer
61 views

new or used bike? [closed]

I have a Cannondale catalyst 3 but for some reason I see myself constantly replacing things on it and I getting tired of taking out money just to replace something. I was wondering should I just try ...
0
votes
2answers
94 views

Damaged pedal axle thread in crank arm [duplicate]

I'm brand new to cycling and I have an entry level Cannondale catalyst 3. I was riding my bike on a trail and when I got home I noticed my right pedal was wobbling around. I tightened it but the pedal ...
14
votes
8answers
3k views

Loose spokes after only a few rides

I have recently joined the cycling world after committing to losing weight. I am a heavy rider at about 28st (390 lbs) and have after some advice gone for a GT Avalanche. I have had the bike less than ...
1
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2answers
120 views

My chain skips on the front chain rings. What do I do?

I currently ride a Cannondale Catalyst 3 and I've noticed my chain doesn't like to catch on my front chainrings. I'm very new to mountain biking and I am on a very low budget, so is there any way to ...
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votes
2answers
93 views

Bike won’t shift to 6 or 7 gear because shifter is too stiff

On my bike I have 7 gears at the back and 1,2,3,4,5 are normal and shift fine but some reason I can’t shift to 6 the lever or switch won’t go and feels stiff I’m unsure what it is I thought it might ...
1
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2answers
205 views

What size rim is OK?

I have a 700x35c rear rim, it's bent pretty bad, but only can find 700x38c rims, is that ok to use? Or should I keep hunting for the same size rim?
0
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1answer
82 views

What bike should I get? For forests and city mainly [closed]

So right now I've got a hard tail but I'm not really happy with it. At the moment I'm only riding my bike in the city even though I am planning on riding it in the forest and parks as well. My ...
0
votes
1answer
197 views

Is this bike XC or Trail?

My bike is a Exitway R16 with Rockshox Recon suspension. I was wondering if is this bike for XC racing, light trail riding or both. The bike is not the fastest nor the slowest, I have a little hard ...
0
votes
1answer
112 views

Does shorter shock stroke limit rear travel better than higher shock pressure?

I'm building a full-suspension XC bike for racing technical courses. My frame is built with a leverage ratio such that 45mm of shock stroke corresponds to 130mm of rear travel. 99% of the time, I am ...
0
votes
2answers
144 views

SRAM x5 derailleur fitting

So I am a complete novice when it comes to bike maintenance but working on a project mtb, old Saracen rufftrax. The rear derailleur was knackered so fitting a new SRAM x5, my question is do I need to ...
2
votes
1answer
166 views

Sudden deflation of a mountain bike tube without a bang?

I pumped up my flat tires on a Sunday afternoon and on Monday nothing went wrong, but on Tuesday, my bike was left in the rain followed by scorching sun. During that time, both of my bike tires ...
6
votes
3answers
3k views

Can I pump my MTB tire to max (55 psi / 380 kPa) without the tube inside bursting?

I have a e-mountain bike and I use to commute to uni every day. I have heard that higher tire pressures give you a bit more speed. My tires say I can pump to 55 psi (380 kPa) but I don't know if my ...
2
votes
0answers
45 views

What's the type of polymer material used in friction bushings in Sram rear derailleurs clutches?

The friction bushing of an (older) Sram rear derailleur clutch is shown below. What type of polymer material are these made out of? I'm also interested to know what friction materials are used in the ...
1
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2answers
169 views

Quick release and tires moving in the frame?

I have a Schwinn Boundary 2017 and it came with a quick-release front wheel. I noticed that no matter how tight I put the skewer it would be in a different position after extreme braking. The bike ...
2
votes
2answers
72 views

Rear V brake replacement

So I am replacing the rear v brakes on my old Saracen ruff trax, callipers, cables and pads. My questions is... Unless I pull the brake cable tight through the calliper the pads do not get close ...
-2
votes
1answer
111 views

Where does this bike comes from?

I have a bicycle (bike) bought in January 2000. I am now curious to find out the manufacturer depending on the chassis serial number as engraved below the pedal-hub as indicated: ISR8080906. Attached ...