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22
votes
2answers
4k views

What's stopping you from pedalling backwards?

On the BMX bike I have, pedalling backwards moves the chain but doesn't drive the wheels of the bike backwards like you would expect it to. Why is this?
11
votes
3answers
2k views

What are the advantages of investment casting?

I'm starting to see more and more frames using investment casting for head tubes, drop outs, seat tubes, etc. Such as the new WTP c.r.e.a.m. frame . It looks nice, but I'm suspect on how much more ...
11
votes
3answers
631 views

Truing stands, go big or stay home?

I'm looking to buy a truing stand. Is the Park TS-8 Home good enough? Or should I pay double the price and get the Park TS-2.2 Pro. I have some experience truing wheels, but never on a nice stand. I ...
10
votes
3answers
3k views

How did cyclists get over curbs before BMX era?

There were curbs before 1970s, right? I wonder whether everyone had to dismount or dramatically slow down before curbs until bunny hop and wheel lift became popular, I guess, in 1970s among first ...
9
votes
4answers
3k views

Why is BMX gearing so low

I was watching the BMX racing on the olympics and the gearing seems incredibly low. About half way down the start ramp they are already going too fast to keep pedalling and they barely seem to be able ...
8
votes
3answers
2k views

How does a bike absorb all the energy in landing from a big drop?

There are countless videos showing BMX/freeride/downhill etc. riders jumping and dropping from heights. For the unprofessional spectator, they seem impossible to survive. From the physical point of ...
7
votes
2answers
930 views

What is the name of the part, often seen on BMX bicycles, that allows an additional rider on the back the bike?

What is the name of the part, often seen on BMX bicycles, that allows an additional rider on the back the bike? It appears to be a set of relatively short but thick poles that go on either side of the ...
6
votes
2answers
446 views

What is it called when you ride a bmx like a unicycle?

I was looking around a bit on YouTube and found a video for a footjam decade... which is pretty cool, in my opinion. However, in this video at 2:44 he rides the bike like a unicycle, straddling the ...
5
votes
2answers
3k views

What's the performance difference between a front-load and top-load bike stem?

I recently bought a bmx and after doing a few tricks on it, the front-load stem became loose enough for the bars to slide forward (they rotated towards me about the point the bars were connecting at ...
4
votes
3answers
7k views

What is the bicycle Danny MacAskill uses in his “Way Back Home” video?

I was wondering whether someone could help me identify what is the bicycle Danny MacAskill uses in his video. If it is unable to determine exactly what model he has, could you guys please tell me a ...
4
votes
2answers
1k views

Is there much of a difference between flatland and park/street frames?

I am a newbie at biking, and I've been wanting to get into BMX for a few years, and I can now since I actually have some money. Primarily I've been wanting a 20" BMX bike with front and rear brakes ...
4
votes
3answers
2k views

Why are BMX saddles so low?

I've seen a lot of teenagers riding BMX bikes recently. It seems that most if not all of the guys I've seen riding their BMX bikes around the streets, car parks, local parks, etc have a frame that's ...
4
votes
2answers
211 views

Add front brake and/or improve back brake on 2012 Specialized P.24?

I love the P.24. Sometimes I like to ride it on steep offroad downhills and keep it under control. Currently, my braking strategy is brake and bail if necessary. :) According to ...
3
votes
3answers
962 views

Armor and helmet for ultra-safe commuting (womens size)?

I'm about to start daily bike commuting again after a long hiatus and want to go all out on safety. My fear of an accident is extreme enough that I am looking into regularly wearing body armor and a ...
3
votes
3answers
631 views

BMX gearing - for road / commuting

I have a 2010 Haro Pro Race, which I bought for commuting and general tomfoolery. I commute on it 2 miles a day, and I want to be able to go faster by changing the current single-speed gearing ...
3
votes
2answers
268 views

BunnyHop Soft Landing

I broke my pedal today. I own a bmx. It happened when I landed from an american bunnyhop. Any tips to land softly? (I have even bent the rim.)
3
votes
2answers
3k views

How to take apart this rear BMX hub?

As shown in the photo, what tool do I need to take this rear hub apart? I assume I need a tool which will fit in the 4 notches. The problem I am trying to fix is that if you pedal, the rear cog spins ...
3
votes
3answers
926 views

What BMX bicycle to buy for both urban and rough riding?

This is slightly related to my previous topic about Danny MacAskill's bicycle, but not necessarily bound to it. I'd like to buy a BMX bicycle with the following requirements: I want to use it only ...
3
votes
2answers
4k views

Advantages / disadvantages of freecoaster and cassette hubs

I've been reading a lot over the past few days about BMX, and last night I watched a few videos like this one. I have been seeing the words "freecoaster" and "cassette" around a lot, and I was curious ...
3
votes
2answers
248 views

Are front and rear tires on BMX bikes interchangeable?

what is the difference between a front tyre and a back tire and would it matter if they was both front tyres or both back tyres on a BMX bike?
2
votes
2answers
583 views

What are some notable differences between a 20'' trial bike and a BMX bike?

I was wondering what are the differences between a small (20'") trial bike and a BMX? Were I to choose one to buy, what should I consider before I make my decision?
2
votes
1answer
74 views

rebuilding/frankenbike query

My son (teenager) has a second-hand Zombie bmx style bike - it's designed for kids, but as far as I can see the frame size is the same as any bmx. It needed a bit of messing around with, I've already ...
2
votes
4answers
2k views

BMX stem slipping; how to stop?

I recently bought a BMX bike that currently has all stock parts. Recently, with the school and weather, I haven't been able to ride it that much. Anyways, when I picked it up from the shop, the bars ...
2
votes
1answer
599 views

Can I add gears on a bmx?

Just asking if it is possible. My friend added gears, but won't it damage the look or my cycle?
2
votes
2answers
776 views

Which master links for 1/8 inch aka BMX chains?

It was very easy to find master links for 3/32inch (aka 9-speed chain) but I cannot find them for 1/8 inch (aka BMX chain). My chain is the Nexus CN-NX10. Cannot understand the odd observation that ...
2
votes
2answers
687 views

BMX: Training routine for a beginner?

At the ripe old age of 20, I finally moved to an area with a BMX track, so this summer I'm finally going to be able to follow my life-long dream of racing. Other than spending a lot of time riding ...
2
votes
1answer
92 views

What's this noise? Is it from my crank?

I have recently been riding bmx, racing to be more specific. I ride around my neighborhood a lot when im not at the track and have noticed this loud clanking noise. I didn't know where it was coming ...
2
votes
1answer
224 views

Riding bicycle without using seat

I've almost always rode on a BMX, so I've never been sitting while riding because of how low the seat is.Now I've had a chance to try out a more normal bike but I found sitting on the seat to be very ...
1
vote
4answers
2k views

Alternative Chain Grease/Lube

Can I use this general-purpose lithium grease on my chain until I can get some Finish Line lube? Thanks in advance.
1
vote
3answers
967 views

My stem keeps moving side to side even thought I tighten it

I just got a new Demolition Stem.I tight it with all my force And It keeps slipping side to side Like it doesnt match with the fork lined up And whenever I check it its fine but after a while it is ...
1
vote
1answer
2k views

How to determine size of freewheel?

My previous question was: How to take apart this rear BMX hub? How do I determine the size of my freewheel to replace it? I have seen on bicycle sites that a freewheel comes in sizes like 14t, 16t, ...
1
vote
1answer
635 views

How many freewheel thread sizes are there?

I'm buying new freewheel and noticed that not every freewheel can be screwed onto my hub because they have different thread sizes. For example: I've found the following thread size specifications: ...
1
vote
1answer
605 views

What make is my BMX frame?

I have a BMX forsale, but I would like to know what make the frame is so I can determine how much it is worth. Does anyone recognise this symbol on the frame? Thanks for your help Jon
1
vote
1answer
401 views

What should I look for in a mountain bike for doing BMX-style balancing tricks?

When I was a kid I started learning to ride around on my back wheel and it was really difficult. Then I tried doing it on a crappy CCM mountain bike we had (rather than my nice Gary Fisher Piranha) ...
1
vote
1answer
58 views

Can´t remove BMX stem top cap bolt (won´t loosen)

I was trying to remove the handlebar and stem of my bike in order to be replace them. The bike has got a BMX stem and the top cap bolt is spinning freely in both clock and counterclockwise. Any idea ...
1
vote
1answer
243 views

What is the standard diameter for BMX brake mounts

First of, these are the sort of brake mounts I'm talking about (though I believe the diameter is standard whether the mounts are removable or welded to the frame/forks): What is the diameter on the ...
1
vote
0answers
494 views

Help identify my bike frame? [closed]

My dad found a bike and I want to know what kind and make it is. I know the different parts it has, because I put it together from scratch. I want to know the frame though. It does not have the ...
0
votes
3answers
677 views

Is hydroformed tubing good?

I've recently saw that a bmx frame was hydroformed.Is it better than not hydroformed?
0
votes
2answers
689 views

Accessory to raise handlebars (on a bmx)

I just bought a used bmx bike and after raising the seat to a level where it is semi-comfortable to pedal while on the seat, I now find that the handlebars are too low. Is there any sort of an after ...
0
votes
3answers
230 views

BMX racing with a full size MTB?

There is a local BMX track in a suburb of the town I live in. I had called there before asking about scheduling and rules and whatnot. I found out, that (at least on that track), they had a special ...
-1
votes
1answer
113 views

Friction occurs in BMX Freewheel

I've just found out where friction occurs in my BMX. When I take chain off the Outer Part and spin the rear wheel the wheel will spin for several minutes but when the Outer Part can't rotate with the ...
-2
votes
1answer
6k views

How to tell what BMX frame I have?

How can I determine what kind of BMX frame I have if I there no decals on the bike when I got it? I got it from my dad who found the frame and we put it together, but I am clueless as to what brand or ...