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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8 votes
2 answers
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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
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1 vote
0 answers
122 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
81 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
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3 votes
2 answers
1k 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
85 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
158 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
1k 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
  • 1,678
2 votes
1 answer
69 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
12 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
897 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
328 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
327 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
130 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
743 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
3 votes
1 answer
672 views

need a 24/34/42 crankset but can only find 24/34/44 is that ok?

I'm trying to find a 24/34/42 175mm square tapered crankset for a 7 speed mtb rebuild but can only find a 24/34/44 crankset. Will the 2 extra teeth on the large chainring be a problem for me? would I ...
Matt's user avatar
  • 31
1 vote
3 answers
398 views

1x9 wide range cassette

I am curious to find out if anyone has figured out a viable solution for a 1x9 wide range eg; 11 to 46 or 11 to 50 setup without using a derailleur hanger extension? I have a FS mtb and am not too ...
Raymond Dunne's user avatar
1 vote
1 answer
53 views

What steps to minimize corrosion in mountain bike in non-climate controlled storage

I will be putting my mountain bike into a non-climate controlled storage space. I will be there about 90 days. Is there anything I can do to minimize rust and corrosion? Thanks.
fixit7's user avatar
  • 1,232
4 votes
3 answers
975 views

Restoring an old Trek 820 with a modern groupset

I have an old Trek 820 frame (from 1999-2000, I believe this is the one), which has some sentimental value to my wife. I'd like to use it to put together a working bicycle. I can wrap my head around ...
Radek's user avatar
  • 233
1 vote
1 answer
134 views

Problems installing new suspension fork

My new fork is considerably smaller where the crown race sits and does not sit in the bike frame snug. If I cut and install all the way will it work? My bike is a Carrera Sulcata 1 with a Suntour XCM ...
Ross 's user avatar
  • 11
9 votes
3 answers
384 views

Cube Stereo 150: Loose fitting bolt makes the entire ride wobbly and dangerous

The issue My 2019 cube stereo 150 rides very wobbly, to the point where it's outright dangerous on speeds above 40km/h. I pinpointed the issue to the lower bolt that connects the springed rear part of ...
Pieter De Bie's user avatar
6 votes
3 answers
2k views

Etiquette (and common sense) rules for MTB cyclists

There must be a collection of established wisdom for what not to do on the trails when riding with a small group of 2-4 cyclists. One example is following. If you're behind someone who's going into a ...
Sam7919's user avatar
  • 9,112
1 vote
0 answers
48 views

Currie mid-drive Pedal assist works sporadically

I have a Raleigh Route with a Curry Electro Drive trans x 350 watt pedal. Assist only motor. Pedal assist starts and stops almost immediately over and over the entire time I ride. Sometimes it doesn't ...
Parrish Shane Ward's user avatar
1 vote
2 answers
140 views

What bike + carrier combo for navigating hills with a toddler?

Recently moved to TX and there's a state park near our home with hilly terrain. I'd like to ride around with my toddler. What carrier + bike combo would make the most sense? I have a commuter bike but ...
bikemom's user avatar
  • 19
2 votes
2 answers
1k views

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 ...
Brian B's user avatar
  • 21
0 votes
2 answers
98 views

Question about durability of a hardtail

Having an mtb hardtail KTM ultra fire 27.5 (2015 model year) I wonder what it’s capable of in terms of jumping. I do get that it’s not designed for things of such sort but still want to know more ...
Ilya's user avatar
  • 1
3 votes
1 answer
615 views

Clicking / cracking noise rotating crank MTB

Suddenly during the ride, strange cracking noise started to happen. It happens even without a chain. The crank seems to rotate smoothly otherwise. There are more cracking noises when rotating forward. ...
petrsyn's user avatar
  • 143
21 votes
7 answers
5k views

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. ...
PlayfulShad0w's user avatar
1 vote
3 answers
226 views

Looking to put my 40-year-old mtn bike on a smart trainer

I would like to upgrade my basic wind trainer to a Zwift Hub smart trainer. I'm using a 1980s 18-speed Mongoose Hilltopper with a thru axle (148mm). The Hub offers Shimano 8, 9, 10, 11, and 12 speed ...
Adelaide's user avatar
0 votes
1 answer
73 views

Can I upgrade my Montra Madrock 27.5T Orange from MTB to Hybrid

Bike details can be checked from below page https://www.trackandtrail.in/cycles/montra/montra-madrock-275t-29t-2021 https://montra.in/bikes/mtb/montra-madrock-29t/ The reason I want to try it is, ...
BikeRider's user avatar
3 votes
4 answers
1k views

Is it ok to have different size tires on my MTB?

I got a used Mongoose Excursion MTB, and it came with a 26x2.10 front tire and a 27.5 rear tire. Is this suitable? Will it ride normally? And what's the reason for different sizes?
Alison's user avatar
  • 1,061
2 votes
1 answer
214 views

MTB rear triangle specs for given frame / e-bike build

A used 27.5 19" e-bike frame (Bosch motor+battery model) (only front half) is advertised under the brand "Kilimanjaro e-tec 2.0", whatever. Its rear triangle, however, is missing and I ...
bozobkr's user avatar
  • 21
1 vote
1 answer
203 views

My bike has a 10 speed cassette. MTX hub motor takes 9 speed cassette can I remove last cog of my cassette without issues?

I need some advice. I have a Giant Anthem 2012 dual suspension bike. And want to put a 1500 watt 26" MTX cassette type rear hub motor onto it. I believe the MTX wheel can take up to a 9-speed ...
Chris Jamieson's user avatar
1 vote
1 answer
112 views

Can I straight-swap my cassette 10 cog wheel with a ebike hub motor free wheel 7 cog wheel?

I have a Giant Anthem bike that has a 10-cog cassette wheel. And I have just purchased an e-bike hub motor that is a freewheel with seven cogs. Can I go ahead and fit it without any problems?
Chris Jamieson's user avatar
3 votes
3 answers
1k views

Should one's bum be behind, or merely over, the lowered saddle on steeper descents?

Where exactly does your bum go on steeper descents? You lower the saddle (by all of the 120-150 mm it will go); and you pull as much of your weight as far back and as low as you can go to decrease the ...
Sam7919's user avatar
  • 9,112
3 votes
1 answer
240 views

How does the chain stabilizer perform its clutch function?

The chain stabilizer (blue in the sketch below; source) consists of two parts. The two parts are: an outer metal part (top right of the image below), and an inner part (bottom left of the image ...
Sam7919's user avatar
  • 9,112
4 votes
1 answer
522 views

How do i remove my crankset and bottom bracket?

I have a Specialized Hardrock I'm trying to remove the crankset and bottom bracket from. It's a square taper crank and I do have a Parktool CWP-7 however I have yet to understand how to use it exactly ...
Alison's user avatar
  • 1,061
9 votes
4 answers
1k views

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 ...
Darth Continent's user avatar
4 votes
3 answers
4k views

Cassette fell off while whacking the wheel on a rock — is this normal?

While replacing an inner tube, I whacked my rear wheel's tire on a rock to make sure the tube inside was straight and had no kinks. While doing so, my cassette fell off, together with a few inner ...
anatolyg's user avatar
  • 1,264
3 votes
4 answers
275 views

Can a 9 speed rear derailleur be used with a 7 speed freewheel and shifters?

I know this has been asked before but wanted to make sure in case things have changed over the years. I have a brand new Deore M592 Shadow 9 Speed rear derailleur and wanted to know if I can replace ...
Ben Sibley's user avatar
1 vote
2 answers
219 views

What size road tyre could fit my MTB? Currently, I have 27.5 x 2.0 tyres [duplicate]

I was in the process of changing my MTB's tires to something more road oriented, what sizes could fit my rim? More precisely, how much thinner can I safely go?
Caesar's user avatar
  • 13
2 votes
4 answers
4k views

Chain is rubbing the front derailleur even after trying to align using indexing screws

I have a Trek Marlin 5 (2022) MTB with Shimano Altus M315 as the front derailleur. The problem is the chain (KMC Z8.3) is rubbing the derailleur on higher gears (for example, when using 2x7 or 2x8) ...
heemayl's user avatar
  • 123
4 votes
2 answers
780 views

Is this inner tube too big for the Rim?

I got a new inner tube for my bike and it's way bigger than the rim, It's just its usual size; didn't inflate it too much or anything like that. The older one I was replacing just fits fine. IS this ...
spaz's user avatar
  • 41
1 vote
3 answers
264 views

Get a better seat post that will last longer

I took off the seat post for my Huffy MTB. The pic shows the measurements of the old post. (Ed: The actual measurement is 28.6mm, see comment) Can someone help me find one that will outlast the ...
fixit7's user avatar
  • 1,232
1 vote
1 answer
774 views

Huffy model number

I need to find the model number in order to get help from Huffy. I think it is somewhere in this sticker. Is the model number here?
fixit7's user avatar
  • 1,232
1 vote
2 answers
3k views

Can I replace 24x1.95 tires with 24x1.75? [duplicate]

Short background I recently found my old gravel bike and I want to get it ridable again. I noticed that the 24" 1.95 (53-507) tires that came with it are super worn out so I want to replace them. ...
Chewy Cheeky's user avatar
2 votes
1 answer
369 views

Where could i find the intended travel for my specific mtb suspension forks

I have a Akela forged CR-MO mtb suspension fork that im trying to find the specs for. I'm building a bicycle for the first time and need forks for it. I have a few forks laying around. I know the ...
Alison's user avatar
  • 1,061
1 vote
1 answer
215 views

Bicycle seat choice

I just happened to wander into a bike shop last week. It specializes in racing bikes. I asked the owner about my problem of my glutes hurting after rides. He said to get rid of the wide gel foam seat ...
fixit7's user avatar
  • 1,232
1 vote
4 answers
200 views

Flat repair advice needed

After have a flat at night about 2 miles from home, I would like to have a better strategy for getting back home other than walking my MTB bike home. I have these. I am not sure how to use the CO2 ...
fixit7's user avatar
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