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83 votes
Accepted

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 ...
RoboKaren's user avatar
  • 29.3k
59 votes

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

It's to give the illusion of safety.
I Don't Know's user avatar
39 votes
Accepted

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 ...
David Richerby's user avatar
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 ...
LarryG99's user avatar
  • 339
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
David D's user avatar
  • 22k
13 votes
Accepted

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
John Burgess's user avatar
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 ...
Fatalize's user avatar
  • 425
12 votes

What does this emblem mean?

Gary Fisher Google image search results:
Nathan Knutson's user avatar
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 ...
Andrew's user avatar
  • 978
11 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 ...
Kellen Stuart's user avatar
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 ...
Criggie's user avatar
  • 127k
10 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 ...
RoboKaren's user avatar
  • 29.3k
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 ...
shoover's user avatar
  • 331
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 ...
Swifty's user avatar
  • 12.8k
8 votes
Accepted

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 ...
David D's user avatar
  • 22k
8 votes

Need help with BMX Frame logo stamping

This is Trek - not certain of the exact era.
Nathan Knutson's user avatar
8 votes

Adult vs. Kids BMX Sizes

Smaller BMX bikes (assuming you are looking at 20 inch wheels only) have smaller handlebars, shorter cranks, sometimes shorter frames (depending on what it is) and angles can vary. Kids bikes are ...
David D's user avatar
  • 22k
7 votes
Accepted

Do half link chains work on any bike and what is their purpose?

From the internet: "Half Link BMX chains were designed to help dial in the chain length on frames with short dropouts and small gearing, making sure your rear wheel is exactly where you want it. Dan'...
renesis's user avatar
  • 1,411
7 votes

Do half link chains work on any bike and what is their purpose?

As mentioned in another answer, the main purpose of half link chains is to have more control over the chain length and hence the wheelbase of your bike (assuming you have rear facing or slideable drop-...
Sandy Knight's user avatar
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 ...
Adam Rice's user avatar
  • 30.1k
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 ...
Nathan Knutson's user avatar
6 votes

What model of BMX frame do I have?

I see no bike - I see some scrap metal that used to be a bike, and could be a bike again if you add the missing parts. Clearly visible is a 1 piece ashtabula crank which is not a high quality design. ...
Criggie's user avatar
  • 127k
6 votes

Do you know the make of this BMX bike?

Surprisingly this is enough info to give a lead. http://bmxmuseum.com/forums/viewtopic.php?id=1493 says "Mongoose used the M on the drop outs of their frames in the early-mid 90's" "Mosh stamps ...
Criggie's user avatar
  • 127k
6 votes
Accepted

Free agent model?

Looks like a Free Agent Limo 24 BMX" bike, circa late 80s to early 90s. Here's a BMX museum page with very similar looking one. To find the model, I just typed "free agent 24" into Google image ...
Klaster_1 Нет войне's user avatar
6 votes

Do Left handed bikes feel different to ride?

Pretty much yes. Depending on quality and material of the cranks you might feel the slightest difference when engaging because the stiffness of left crank+sprocket isn't exactly the same as just right ...
stijn's user avatar
  • 1,494
6 votes

Bike tube going flat for no reason

You can try taking the tube out, add a little air, and then submerge it in water. Sometimes it's easier to find a tiny leak when bubbles are coming out of it. There's a chance the leak is at the ...
Henry A. Kissinger's user avatar
5 votes

Handlebar of my bike will not bolt onto the front forks

Sounds like a quill stem, something like this: That wedge bit at the bottom sounds like its come unscrewed completely. Take the stem out, and look down the hole. If you see a lot of light, then you'...
Criggie's user avatar
  • 127k
5 votes

What kind of 24 inch bmx is this?

Its a generic BMX that has been ridden by a rider too big for it - the handlebars are leaned away from the saddle Likely its been stripped of both brake systems - I can clearly see cable lugs under ...
Criggie's user avatar
  • 127k
5 votes

How do I get the right parts for my BMX?

Contrary to seemingly popular belief there is no giant database of bike serial numbers, manufacturers, models and original components that people with sufficient reputation on Bicycle Stack Exchange ...
Argenti Apparatus's user avatar
5 votes

Hi can anyone name this frame

The best match I could find for the frame is a Falcon Pro Freestyler The bike in the picture is a 1996. From what I'm seeing in the BMX Museum this frame was made between 1992 and 1996. I was ...
David D's user avatar
  • 22k

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