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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Proper fork length for a bike with 5.5 inches of rear shock

I purchased an older Santa Cruz Blur frame today. From what I can gather the shock mounted on the frame gives 5.5" of travel. I'm looking to buy a fork to match. Do I need to go with a 140mm fork, ...
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5answers
1k views

Are single-speed bikes better equipped to handle cog/chain wear?

I need to decide between a single-speed and multiple-speed bike. I usually ride multiple-speed mountain/city bikes in the highest gear anyway (around town). They're not intended for that, and doing ...
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4answers
1k views

How to determine if a decline is too steep for safety?

I often find myself confronted by a steep and bumpy bit of hill on the trail, or one or two steps on the path, and end up with three possible results: A) ride down with no trouble (usually) B) step ...
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29k views

What are the pros and cons between an aluminium and carbon frame?

I'm after a mountain bike and I've narrowed it down to the Cannondale F29 (based on reviews, plus I like the look of the bike). My question is, should I go for the carbon bike or the alloy bike? I'm ...
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4answers
5k views

My crank fell off, how do I re-attach it?

I was out riding on my mountain bike when my crank unexpectedly fell off (video). How do I reattach the crank? There's a torque range specified (25-30 Ft-Lbs): how critical is this? I don't own a ...
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3answers
772 views

Which parameters should I track with bicycle computer so I can analyze changes in my riding?

I'm building Arduino-based bicycle computer with GPS at my free time as a hobby project. So I have to find out which parameters of ride will be useful to track to see a progress (or any changes) in ...
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2k views

Does rear-shock placement affect suspension characteristics?

I know that suspension type(Horst-link, Four-bar etc.) affects how a full-suspension mountain bike handles, but you can often see these same types of suspension systems used with different shock ...
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2answers
4k views

Biking with spinal disc herniation

I was diagnosed with lumbar spinal disc herniation and told that I should exercise. I always liked biking, so I want to do that. I have an older rigid mountain-bike and will be mostly driving on ...
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4answers
450 views

How do I stop my bike tires from puncturing?

I recently bought a specialized Stumpjumper 29 and its only been a few weeks but I've punctured the tire four times already. I think im getting the punctures from the trees and bark on the trail but ...
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4k views

Tri-bars/Aerobars on Mountain Bikes

I am trying to work on endurance in the hopes of one day touring the GDMBR in a reasonable amount of time and after watching Ride the Divide, I noticed a lot of the riders are using aerobars. When I ...
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891 views

Are there LED based dynamo powered lights suitable for night time MTB riding on singletrack?

Are there LED based dynamo powered lights suitable for night time MTB riding on singletrack? Likely they would need to have: High Brightness, likely 500 lumens or better. Not sure how that translates ...
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631 views

Using a much heavier rear tyre than in the front

For the last 3 years I've been using light (800grams) tyres front and rear. Since I've been having too many rear tyre pinch flats (tried everything: high PSI, tubeless, heavy duty tubes) I'd like to ...
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2answers
6k views

Disc brakes make noise

My disc-brakes on my mountain bike sing/scream when I brake. I have tried to clean them, but it didn't work. Should I replace the disks or the brake pads? Is there a better (cheaper) way to fix this.
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2k views

What is a better gearing combination for downhill?

One of the tracks I've been riding recently is testing both my skill level and my bike. The track is a combination steepness and roughness that makes it significantly different to what I've previously ...
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3answers
335 views

Would learning to ride a unicycle boost biking skills?

Unicycles are not particularly expensive, seem to be light and portable, also fun. This gets me wondering if spending a couple of months to learn riding such a thing would boost a mountain biker's ...
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1answer
2k views

Is it possible to replace a 1 1/8 steering tube with a 1"?

I have a 94 Giant ATX. Threaded 1 inch steeering tube. I need a shorter stem, and would also like to install a suspension fork. Is it doable? Could I take a modern suspension fork, heat the crown, ...
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4answers
1k views

How does stiffness affect experience and performance?

I see many mountain bike reviews and articles discuss the stiffness of frames, forks, wheels and other components. Here are some questions which cross my mind: What is the definition of stiffness? ...
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836 views

Mountain bike rear wheel tilts after remounting

Backstory: Total newbie regarding repairing cycles and the proper cycling terminology, so please take that into account. Actual story: I had a fall and the rear wheel started touching the brakes ...
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1answer
882 views

Mountain biking: How to ride in mud?

Any one have any tips for riding in mud, and lots of it? I am talking about mountain biking. Update I am doing a race on Sunday, and it rained all week, and there's a chance of rain during the ...
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233 views

How to board a ski chairlift that is not intended for bicycles?

As the end of the ski season is approaching, I am thinking about visiting our ski resort by bicycle. I would like to do it at the end of the season to avoid the inconvenience of the crowd, and ...
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2answers
430 views

MTB Manufactures and Upgrade-ability

I'm looking to purchase a new bike in the intermediate level and I'd like the option to upgrade all if not most of the parts over time. That said, I've read some concerning articles [sic] and I want ...
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1answer
668 views

What is the widest range 9 speed cassette?

My commuter rig is an old trek mountain bike that I've converted to fixed gear with an ENO hub/crankset. I am thinking about going geared for the winter. I have a rear wheel that I built last year ...
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3answers
175 views

Converting Mountain Bike for Road to complete in 33 mile mini triathalon

I have a very good mountain bike and like to ride trails. I recently signed up for a mini triathalon that requires a 33 mile road ride. I don't want to buy a new bike, so I was thinking about buying ...
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1answer
556 views

Why is my front Derailleur not shifting as smooth as it used to?

I have a Specialized Hard Tail 10' Model. When I ride and am shifting to the bigger gear on my front derailleur it isn't as smooth as it used to be or sometimes doesn't shift to the gear I'm going ...
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2answers
2k views

What maintenance is required for a thru axle?

A thru axle is a hollow axle that gets clamped by each fork leg and through the hub. Like what a motorcycle has. Much stiffer and stronger design then the typical QR dropout. My sons newer downhill ...
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2k views

Chain skipping on MTB

I've had my Trek 3900 for about a year now, and I replaced the chain about 3 months ago, but otherwise it's running with the same parts it came with (not counting tubes and tires). I had to replace ...
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1answer
179 views

First Cyclocross Race - Riding a Mountain Bike

I'm participating in my first ever bike race this weekend. It's a cyclocross race, and I'm riding a full suspension mountain bike, because I started looking into races late this season and a fully is ...
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373 views

Planting a foot when cornering: when and how?

Recently I have noticed the following. When doing extremely tight turns e.g. 90 degree trail turn, I tend to: Get out of my high saddle, position in front of it and low over the top tube Stick the ...
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4k views

How do I make a MTB shifter fit on a Road dropbar?

I'm about to buy a MTB, since we don't have cyclocrosses here in my country. I'd like to have a road dropbar, but can't spend money on a road shifter like tiagra sti. I know the mtb handlebars are ...
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2answers
164 views

How to build good jumps?

Not sure if this is the right place for this... But I'm wondering how I can make 'good' jumps. I've made a few using a 1 tonne digger. I had the tabletop with the pallet a gap at first but I made ...
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2answers
128 views

Converting from square spline to external bearings, what do I need to know?

I need to replace the entire drivetrain on my circa 2000 MTB commuter. Quality groupsets all seem to use external bearings these days. Replacing my current cartridge bottom bracket for a modern ...
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721 views

Would like to custom-build a bike but I'm not sure on what parts to buy

Currently I have a 2011 Trek 3700 (no disc brakes) and just this year have gotten into riding mountain bike trails and would like to have a bike better suited for doing that. I'd like to keep the ...
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1answer
931 views

Remote rising seat posts and heavier rider

I am looking at remote adjustable seat posts that I can adjust the height of using a lever on my handle bar. They have a high price tag. Examples are Rock Shox Reverb Seat Post and Crank Brothers ...
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2answers
5k views

Suggestion on buying a single speed 29er mountain bike

I'm interested in buying a single speed mountain bike for about $400-600. Can anyone recommend me one? I tried buying this http://www.redlinebicycles.com/bikes/mtb/2012-monocog-29er but it is all ...
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1answer
2k views

Tips for radial wheel truing

Several drive side spokes on a mountain bike rear were damaged the rear mech being pushed into the wheel by a rock, with one snapping completely. I've replaced the affected spokes and have managed to ...
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2answers
298 views

Rear gears don't turn anticlockwise

I've taken the rear wheel off my bike but the rear gears are stuck and do not spin freely anticlockwise. It had been out of use for about 4 days, kept in a dry garage. I took the wheel off because it ...
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2answers
2k 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 ...
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2answers
318 views

Is it possible to drop a foot in corners while using clipless pedals?

My friends convinced me to try clipless pedals, that I never trusted too much (BMX background). Now while I'm getting used to them and experience very funny falls, I try to figure out, can a ...
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2answers
4k views

How do I align my front brake disk with the caliper?

I have manual Avid disc brakes. I took my front wheel off like I've done hundreds of times. When I put it back on the wheel is aligned properly with my fork, but the disc presses against one of the ...
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5answers
1k views

Which footwear is the safest for summer cycling?

This morning I could not find my training shoes. So, I used my sandals. I found that the sandals not only kept my feet cool but there was no pedal slippage as I had expected. The more I think about ...
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2answers
931 views

How to carry a MTB on one's backpack?

Sometimes I want to ascend a steep (say, 50%) slope, where is impossible to ride and awkward to push/pull the bike. I tried various ways of carrying the bike: Lifting it just 10 cm above the ground ...
3
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1answer
152 views

Stuck front derailleur

On a ride recently my front derailleur seems to have gotten jammed. The levers wouldn't index and the derailleur itself wouldn't budge. After continuing the ride for a bit, the problem went away on ...
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2answers
744 views

Way to fix outward dent in rim?

On a ride today I ran over a water run off too fast and have caused an outward bulging dent in both sides of my rim. The bulge is hardly noticeable to see or touch but I "think" I can feel it when ...
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2answers
2k views

upsweep and backsweep for mtb handlebars

Characteristics of the following bars for MTB are: • 780mm wide • 30mm rise • 5˚ up-sweep • 7˚ back-sweep I know what effects do the width and rise have on the feel and riding. But what about ...
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1answer
858 views

Bike type suggestion for packed limestone trails

Sorry, for the beginner question. Where I live (Ontario, Canada), I am lucky enough to have a number of packed limestone trails (former railways). Those are fairly flat and great for bicycling. They ...
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1answer
486 views

Is my disc brake caliper correctly mounted on the frame?

I have been in the process of upgrading my bike a bit. A friend of mine convinced me to upgrade my brakes from my stock Shimanos to some disc brakes. After having a look around and asking question, I ...
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3answers
4k views

How much faster can i go after moving from 2x10 to a 3x10 gear setup?

My 26" mountain bike currently has a 2x10 gear setup with SRAM components: a SRAM S-1250 crank with 38/24 chainrings, and a SRAM PG-1030, 10-speed, 11-36t cassette. I feel that when riding on ...
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2answers
461 views

Speed and the sizes of tires/gears

Does the speed of a normal mountain bike vary according to the diameter of the wheels? If it does, will a larger diameter increase the speed or decrease it? Similarly, if the speed varies according ...
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2answers
202 views

Rear wheel rubs frame/cage while pedaling standing up

I've heard (and noticed) the rear wheel rub on the frame and front derailleur cage when pedaling standing up. The frame shows some paint wear at one spot. And, in the lowest gear, if I crank hard, I ...
3
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1answer
119 views

How to find a durable lock mount?

I've had one Kryptonite D-lock for the last two years, and it's worked great. I typically don't ride with a pack, so I've used lock mounts (this kind) to keep it secured to the upright on my bike. ...