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84 votes
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What is the foam tube on the top of bmx frame for?

It's to ensure that young boys who ride BMX bikes will be able to have children when they grow up. Fine print: More accurately, it’s to assuage the worries of the parents that are buying the BMX for ...
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  • 28.5k
59 votes

What is the foam tube on the top of bmx frame for?

It's to give the illusion of safety.
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39 votes
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Can riding without a chain damage a bike?

What harm could it possibly do? The cranks are held firmly in place by the bottom bracket; the back wheel is held firmly in place in the drop-outs. The chain is completely non-structural: all it does ...
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31 votes

How old is too old for aggressive cycling?

I'm 65, and doing 60-70 miles a week on local roads, trails and hillsides. I'm not a kamikaze biker anymore, but it's still wholly worthwhile. Injuries just take longer to heal, and I'm not so patient ...
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  • 329
25 votes
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How did cyclists get over curbs before BMX era?

People were doing tricks on bicycles almost as soon as they were invented. While I couldn't find references about curb hopping in particular, I'm pretty sure that these tricksters from the late 1800s ...
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  • 11k
20 votes

Can anyone tell me what bike logo this is? Cant seem to find it

It's a logo for the Fit Bike Co With a circle Fit Bike Co logos
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  • 16.4k
13 votes

How did cyclists get over curbs before BMX era?

Note that if you have a penny farthing, then hopping curbs really isn't much of a problem. You do have to be careful not to do an end-over but a bit of leaning back on the saddle or hooking your legs ...
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  • 28.5k
13 votes

How did cyclists get over curbs before BMX era?

We just pulled the front wheel up and dropped it as we went over the curb, then we kept riding, letting momentum pull the rear wheel over the bike. It's what I still do. (I don't have a BMX bike.) ...
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  • 231
13 votes

What is this BMX brand logo?

I accidentally found the answer to this question by... listening to Judas Priest. Yep. Here's a picture of Judas Priest "Painkiller" album cover: You can see the exact same "double ...
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  • 425
12 votes

Every time I move my handle bar left or right the wheel turns in different direction

Sounds like the handlebar stem is loose. This is an extremely dangerous situation and you should go immediately (pushing your bike or taking it in a car, but not riding it) to your local bike shop to ...
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  • 28.5k
12 votes
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Can you identify this bike/frame?

Ross Piranha 1986 This is my best option based on the standing platform the fork and chain stays. http://bmxmuseum.com/bikes/ross/89509
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11 votes

Why are BMX saddles so low?

I ride a pro racer XL BMX. They are built for speed. I keep my seat down for 2 reasons. all my pedaling is done standing up -- power is everything for a racer. My saddle is made of one material ...
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11 votes

Can riding without a chain damage a bike?

If you don't have a chain and don't have a chainguard, you're almost guaranteed to slip at some point and dig your chainring into your shins or ankles. It's very painful -- both at the moment as ...
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  • 28.5k
11 votes

How old is too old for aggressive cycling?

No, age will not restrict you. You're not as young as you used to be, but in a good way: you won't have physical limitations of age, but you'll be more observant and thoughtful about what works for ...
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  • 858
11 votes

What does this emblem mean?

Gary Fisher Google image search results:
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10 votes

I bought a used 20 inch bmx bike from bike shop but no one has any idea of the brand

Verde BMX at http://verdebmx.com/completes/ They appear to be based in Columbus, Ohio, USA. Method: I did a google image search for "BMX logo leaf" because it looks like a leaf to me One of the ...
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  • 101k
10 votes

I need to identify what kind of bike I have

The logo is that of Mirraco BMX, which was started in 2006 by the late Dave Mirra. Mirraco got out of the BMX business in late 2013 or 2014. You might be able to match up your bike with some of these ...
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  • 332
10 votes

Can I put pegs on any bike?

To answer your specific BMX Bike The King Gap XL 2021 will support pegs. It's safe to say that any freestyle BMX bike will support pegs. If you were buying a BMX race bike, there's a chance it doesn't ...
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8 votes

How many freewheel thread sizes are there?

The ISO freewheel thread standard is 1.375" x 24tpi Most freewheels I have encountered have been ISO. Some hubs use "British" threading at 1.370" x 24tpi If you use an ISO freewheel on a British ...
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  • 3,821
8 votes
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BMX V-Brake lever for MTB compatibility

Most BMX Levers are "Standard Pull", which means they have the shorter pull and are typically paired with road bike brakes (caliper, cantilever, mini-v, or road disc). Mountain bike brakes (like v-...
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  • 17.8k
8 votes

Can I swap BMX wheels for a larger size?

If you are 5 foot 10 then you will be fine on a full size 20" wheel BMX. Each model size will be built for the specific wheel size, things like tire clearance and brake positioning will normally mean ...
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  • 12.1k
7 votes
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What is a good method for constructing dirt jumps?

Jumps takes time and effort to do right. If you're going to rush or do a half-arse job then don't even bother starting. Design is important - you need to consider run up space before and run out ...
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  • 101k
7 votes

Why do riders swing the bike out sideways when jumping?

It's a trick -- it looks good on camera and would count for points accordant with degree-of-difficulty and "sticking the landing" at an adjudicated comp. The bike and rider become effectively parallel ...
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  • 325
7 votes
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Identify this BMX logo please?

Looks like a "We The People" bicycle logo You can find the logo in several of their bike catalogs. This is one of their 2010 catalog with the logo on the cover When asking questions please be sure ...
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  • 16.4k
7 votes

Need help with BMX Frame logo stamping

This is Trek - not certain of the exact era.
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7 votes

Choosing a gear ratio on 20" vs 24" BMX that creates the same "feel"

You don't need trial and error and you don't need a chart, you need math. (Chainring teeth / sprocket teeth) × tire outside diameter = gear inches Rollout is just gear inches multiplied by π. Tire ...
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  • 24.5k
7 votes

Why are my BMX brake pads not performing?

If the pads are literally oily, they won't work at all regardless of anything else. Clean them with alcohol, sand a little so you know you're on bare rubber, and thoroughly degrease the rim. Other ...
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6 votes
Accepted

Why are there BMX off road races

BMX was originally (and still is) run on smooth dirt track that have obstacles such as jumps and whoops (also know as the rhythm sections). Because the tracks are smooth a small fully rigid bike ...
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  • 29.9k
6 votes
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Effect of BMX bike geometry on manualing

As far as I'm aware, it's all about the rider's location vs. that of the rear wheel. A short chain stay helps, because it tucks the rear wheel up closer under your center of gravity. What really ...
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  • 5,600
6 votes
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Why do riders swing the bike out sideways when jumping?

Its definitely not for stability, its a trick called "Table top". The flatter they look in the air the higher score.
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