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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Rear wheel deflating instantly after pumping

I have a mountain bike and recently the rear wheel has gone flat and every time i pump air into it up to 50 psi it deflates after a few minutes I also hear air coming out a certain part of the wheel ...
User's user avatar
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3 votes
1 answer
116 views

When I press down on my presta valve cap when it is open why is no air coming out

I recently got my bike and it rides great. When I went to pump up the tubeless tires I realized that the presta valve cap isn’t letting air out when I press down on it when it is open. I looked on ...
Super Random Local Facts's user avatar
0 votes
1 answer
70 views

Can anyone help me identify the model of this Viking mountain bike?

I've had a look online and couldn't find anything on it. I couldn't figure out what model of Viking bike this is, wondering if anyone could help.
Dashiell's user avatar
2 votes
1 answer
334 views

What tool do I need to adjust the brake cable here?

I need to loosen very tight bicycle brakes(pads). This is the only thing running over the cable, have no idea what it is and don't have many tools to begin with so assuming I don't have what is needed ...
Tom hardy's user avatar
14 votes
2 answers
2k views

I need help identifying this "Mystery Bike" (could possibly be a real ferrari?)

Good day to everyone, So i have this really old bike. I don't know its brand and model. The paint is still stock, and it has a Ferrari sticker with the name "Michael Schumacher" and ...
Anni's user avatar
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15 votes
4 answers
2k views

Is this brake mounted incorrectly?

A friend of mine just got her bike back from the store after getting new brake pads, a new fork and a new cassette. After riding a few meters I noticed a weird behaviour while using the front brakes ...
andii1997's user avatar
  • 325
1 vote
1 answer
69 views

Conversion of SRAM MTH 746 from Shimano to SRAM XD Freehub

I own Santa Cruz Tallboy AL R-kit which comes with SRAM PG1230, 12spd, 11-50t Cassette (NX level). I want to upgrade to GX-level drivetrain. The GX goupset comes with XG-1275 Eagle cassette with 10-52 ...
Branislav Abadjimarinov's user avatar
1 vote
1 answer
68 views

Running DUB wide crank with 52mm chainline

I have a set of sram xx1 carbon cranks that are DUB wide. My bike (2023 Specialized Epic Evo) is DUB crank 52mm chainline. If I add BB spacers to the DUB wide crank and use a 6mm offset chainring ...
Derek Ryan's user avatar
2 votes
2 answers
224 views

Cues U6000 and Deore M5100 11 speed compatibility

So we have two basically the same looking and working derailleurs: Shimano u6000 and m5100. They have different pull ratios. The question is if friction shifter would allow me to mix "old" ...
guyfromthesun's user avatar
3 votes
3 answers
324 views

57mm or 65mm winter studded tyres for my MTB commuter?

I'm an averagely built rider weighing ~85kg living in a middle-sized town in west Germany. Up until recently the only bike I had was a 46/16 single speed on 28mm tyres. It was used for both commute ...
ayorgo's user avatar
  • 133
0 votes
2 answers
61 views

mountain double recommendations for a 36/24 170 - 172.5 cranks

I'm looking to convert a 1x10 Mtb of mine into to a 2x10. The gear ratio im intent on is 36/24 with an 11-40 cassette. I owned another bike years ago with this gearing and im looking to replicate it ...
Toph McGoph's user avatar
2 votes
2 answers
119 views

Specialized Stumpjumper Women's HT 2006 Worth Rebuilding Back Up?

I absolutely love my Specialized Stumpjumper HT 15.5 (26" wheels), so light and nimble - a dream for single-track and general xc trail-riding (and nice and nifty for running around town too) but ...
Ali Bee's user avatar
  • 21
4 votes
1 answer
116 views

Which geometry specifications determine the seating position of an MTB?

MTB manufacturers release geometry data for their bikes. If I want to know if a bike has a more upright or stretched position, which geometry data do I have to compare?
JohnnyFromBF's user avatar
0 votes
0 answers
59 views

Serial number/ head badge help needed

I have what I believe is a 1983/1984 Schwinn Sidewinder 10 speed. I am trying to decipher when and where it exactly was built and the year. The serial number on the head tube reads as- DU522482 and ...
ARL's user avatar
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-2 votes
1 answer
56 views

Specialized registration number

I’m looking for any kind of registration number on my late 1900’s specialized stumpjumper. Where do I find it and how to determine build date.
Michael Bem's user avatar
0 votes
1 answer
161 views

Tiny dent near the bottom bracket of a new hardtail - should I be concerned?

I’ve just purchased a new Trek Roscoe 7 (aluminum hardtail mountain bike) recently and I’ve noticed this tiny little dent today. It is on the drive-side chainstay near the bottom bracket. Should I ...
TommyYOyoyo's user avatar
0 votes
0 answers
34 views

Help me decode Haro Vector serial number please

Recently acquired a Haro Vector mountain bike. Serial number V2K506004 anyone please help me decode this?
Josh Reedy's user avatar
3 votes
1 answer
71 views

11 speed XT mountain cassete with 105 derailleur and shifter

Will an 11 speed mountain cassette (like the CS-M8000) have the same indexing as an 11 speed shimano 105 derailleur and shifter? I know the cassette needs a spacer to fit on an 11 speed road hub, ...
kag0's user avatar
  • 133
3 votes
2 answers
281 views

Weight on bike vs on rider when pushing bike on steep hill

I wondering, when i ride my Gravel Bike on very steep hill on broken road/gravel i have to push my bike. My total weight on bike including bag etc almost 17kg (14kg on steel bike, 3kg on water and ...
Heykal's user avatar
  • 189
4 votes
1 answer
167 views

What type of cleats to get for these mtn bike shoes

Please forgive the beginner question, but I have a pair of old mountain bike shoes that are missing cleats. Can someone point me in the right direction of an example of what to get (on Amazon or ...
bill999's user avatar
  • 271
1 vote
0 answers
74 views

In how many guises are MTB shorts made?

MTB-specific shorts seem to be currently made in the following guises: Shorts from special rip-resistant fabrics and strategically placed pockets, with no padding. Rider can size up and wear padded ...
Sam7919's user avatar
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0 votes
3 answers
151 views

Do medium-to-advanced single-track riders really care about paddings/chamois?

As a commuter-turned-road-cyclist I cannot fathom going on any ride without padded shorts or bibs (even if I have yet to understand very well why having the padding in the saddle is so awful compared ...
Sam7919's user avatar
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5 votes
4 answers
1k views

How can I alleviate sore hands when riding a rigid mountain bike?

I would like to know of unique tips I may not be aware of. I average a distance of 15km daily on my rigid mountain bike. I have to use moderate PSI to avoid pinch flats and make wheels roll better. It'...
Boniface munene's user avatar
2 votes
1 answer
211 views

UK Carrera Vengeance Mens Mountain Bike -- I can't confirm mechanical disc brake pad sizes to replace

I am trying to do something trivially easy and I can't find the information I need. I need to replace the mechanical disc brake pads on my Carrera Vengeance Mens Mountain Bike. I bought some pads that ...
Martin's user avatar
  • 174
4 votes
4 answers
824 views

Are cleat backing plates for protecting carbon sole?

I've just bought my first MTB shoe that has carbon sole. When I wanted to put on the SM-SH51 cleats, I saw that it has some claws, that would (in my opinion) damage the carbon sole of the shoe. So I ...
Mat's user avatar
  • 727
1 vote
1 answer
56 views

What would you call the cable connection on a Race Face Aeffect R dropper post?

I'm very new to mountain biking, and even newer to bike maintenance. Appreciate your time on a question that I'm sure is simple; I just can't find the right words to Google it. I have a fairly nice ...
Undo's user avatar
  • 113
3 votes
2 answers
624 views

Compatibility of hydraulic disc brake levers with mechanical disc brakes

I have a mid-2000's MTB project bike where I changed the 3x drive train to a 1x. However the original shifters were integrated with the brake levers (Shimano BR-M465 with Shimano ST-EF35 EZ Fire STI). ...
mapface's user avatar
  • 197
0 votes
1 answer
48 views

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 ...
user70888's user avatar
2 votes
2 answers
178 views

Front derailleur installation initial cable tension

I am installing a new XT top pull band on front derailleur. The placement of the cable connection will require me to replace the shift cable too. I am wondering when installing the derailleur what ...
Matthew Kirkley's user avatar
3 votes
1 answer
72 views

Frame and bottom bracket compatibility

I have problems with adjusting front shifting on my MTB so I suspect something is wrong elsewhere. This is a 27.5" Merida Big Nine 100 XC MTB. Its chainset has been replaced with a Shimano FC-...
Ender's user avatar
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3 votes
1 answer
376 views

Where should the cable be run on a front derailleur?

I'm trying to figure out the cable direction on Altus front derailleur. This is a top swing FD. It is shown as below figure on shimano's dealer manual but it's not much clear. Should the cable be ...
Ender's user avatar
  • 1,432
1 vote
0 answers
247 views

How to mount dropper post to Scott Scale without removing BB?

Do you know an easy way to install a dropper to Scott Scale 920 without removing bottom bracket? The frame looks like this: https://www.scott-sports.com/dk/en/product/scott-scale-920-bike And the ...
Politechniczny's user avatar
5 votes
2 answers
932 views

Are my rims "tubeless-ready"?

Currently using a 27.5x2.10 tube tires and I'm planning to convert my mountain bike wheels into tubeless system but I can't tell if my rims are tubeless ready since there's no indicated label if it is ...
Denzell's user avatar
  • 151
-1 votes
1 answer
51 views

identify my giant rainier seriel number GK287424 [closed]

Please help me with any info on my Giant Rainier, serial number GK287424; it was gifted to me recently.
spinn9's user avatar
  • 29
8 votes
2 answers
3k views

Do carbon MTB frames crack easily?

I have been looking to buy a new full sus mtb (Vitus sommet 29 Cr) and saw that the main frame is carbon fibre with the rear triangle being aluminium. I love the bikes specs and aesthetics but can't ...
whyte22's user avatar
  • 89
1 vote
0 answers
102 views

popping sound when pedaling

I locate the source of the popping noise to be around the hub. So far I think I lubricated everything I can get my hands on. The noise is constant and it happens at all gears. I know it's not the ...
squirrelonfire's user avatar
12 votes
5 answers
4k views

Air that escapes from tire smells really bad

I’m trying to get an old bike I had in storage up to riding condition. I’ve washed it and there is no foul odor from the bike normally, however when I pump the back tire, the air leak smells really ...
guest12445's user avatar
0 votes
0 answers
77 views

Help identifying frame brand/model

My friend gave me this frame and the old paint job was covered with spray paint so I decided to paint, strip and run it raw. I need help with identifying the frame. The pictures provided show the ...
FlareCas.'s user avatar
14 votes
3 answers
2k views

Why do most full suspension MTBs have a kink in the down tube?

Back in the time... bikes did not have (rear) suspension and the most common frame design was the "diamond frame", with straight pipes. Today, mostly in full suspension bikes, there is ...
Apfelsaft's user avatar
  • 371
3 votes
2 answers
873 views

Why is my brake lever loose on my hydraulic disc brake i took my wheel off and pressed the brake now the brake lever is loose and touches the grips

What i did in order : cleaned the brake pads -put them back in pressed the brake lever pushed the brake pads inwards put the front wheel on Now as a result of this the brake lever is loose
Harry Dolan's user avatar
1 vote
2 answers
72 views

Beginner MTB ramp

When I google "ramp for MTB", I get some rather serious products and other lavish constructions. Do you have other, simpler, ideas to build a beginner's ramp to practice elementary jumps ...
Sam7919's user avatar
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1 vote
1 answer
103 views

Manitou Minute Expert fork oil?

What oil viscosity is needed for a Manitou Minute Expert fork? Some people say it's 5w some say it’s 15wt and what weight is best to use?
Virmantas's user avatar
3 votes
1 answer
487 views

Is it possible to compensate a small frame size with a long stem and high saddle height?

I'm 174 cm (5 feet 8½ inches). Major bicycle manufacturers recommend a medium or medium to large frame size MTB's with an effective top tube length of 59-62 cm for my height. However my bike (a 26&...
Ender's user avatar
  • 1,432
2 votes
1 answer
61 views

Need help identifying vintage Moor (?) MTB

Trying to gather more info on this vintage MTB, this is what I managed to find so far: SFMK sticker is associated with a Swiss bicycle company called Moor Seems like it's an 70/80s ATB Lugged steel ...
TomerG2's user avatar
  • 23
13 votes
8 answers
4k views

Why are mountain bike tires rated for so much lower pressure than road bikes?

Road bikes with their sleek, thin and flimsy looking tires are designed to take extremely high pressures, going up to 130 PSI (900 kPa). Mountain bikes have much more solid looking, broader tires. And ...
Rohit Pandey's user avatar
4 votes
2 answers
735 views

What kinds of rear wheel hubs are compatible with my MTB?

I am looking at a rear wheel replacement. I have a Scott Scale 980 with a standard wheel on the rear. Will I need a longer freehub to interface with the wide 12 speed cassette? Or are there general ...
Liam R's user avatar
  • 43
0 votes
4 answers
185 views

Need advice on the best type of mountain biking cycling shoes for comfort?

Hello fellow mountain bikers! I'm relatively new to mountain biking and have been thoroughly enjoying the thrilling off-road adventures. However, my current footwear is causing me some serious blister ...
Ruth's user avatar
  • 19
0 votes
1 answer
228 views

Upgrading 2021 Giant Roam 2 Disc (wheels, groupset, chain) [closed]

I'm planning to upgrade my 2021 Giant Roam 2 Disc. Not looking at high-end components. Hope someone could verify if these parts will fit? Also appreciate recommendations for wheels. In case I missed ...
bubblemaker's user avatar
0 votes
2 answers
99 views

26' Maxxis Ikon 2.35 Bike slipped while pedalling

Long story short bought a new bike, went to bring it inside so hopped on it to ride it to the door, Pedaled hard on the pavement, and then all of a sudden the bike slipped under me. Come to realize ...
Matthew's user avatar
2 votes
2 answers
471 views

Maximum cassette size for 24 inch wheel and 20 inch wheel

I think 42 teeth is the maximum cassette size for a 20” bike. I built my son a 20” bike with 2.125” tyres and an 11-42T cassette driven by a Box 4 derailleur and 32 tooth chainring, and it works ...
Edward Hooper's user avatar

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