Its a chain hanger. Purpose is to hold the chain when you take the wheel off.
The idea is to support the chain and stop it falling through itself, making a tight loop and shortening the life of those links.
They're not common on carbon bikes any more, but handy on any working bike.
Don't forget to undo the chain after reinstalling the wheel and before ...
The problem with the question is not the owner's interest in the answer - it is clearly there. The problem is that the answer has almost no value for the community of this site:
most generic bikes are hard to identify to begin with
most successful identification will be based on a photo which cannot be used to answer the same question again because ...
Most questions are based on a need for knowledge about what parts to use or curiosity. The latter do not make suitable questions for SE sites and will normally be closed.
For the former, fortunately the bicycle industry is fairly standardized (even if there are many and evolving standards), so knowledge of the bike make/model/manufacturer is rarely helpful ...
To identify a frame firstly see if a magnet sticks, if it does it's steel, if not it's carbon, aluminium alloy or titanium alloy.
If not steel look down the seat tube if it's metallic inside it could be aliminium or titanium if black and plastic looking, carbon. Tap the frame with a screw driver, aluminium and titanium will have a definite metallic 'tink' ...
If a manufacturer found they had a quality problem with a batch of products (e.g. bikes but equally cameras, phones...) the serial numbers would allow identification of the substandard units.
If you've recorded the serial number of your bike and a bike thief is caught with bikes in their possession the serial number should help you get it back. This has ...
A google reverse image search tells me it's a Martone Sweetzer (US) or Real (European version).
From certain features of the frame (the bend in the top tube etc.) I'd say that's the same bike, but that your picture is of a slightly customised version with a different saddle and grips.
Bicycles (except children's bicycles) are almost always required to have a frame or serial number. Some manufacturers use a date-code as part of the serial number.
For example, a Brompton uses YYMMXXX as their serial code, so a
Brompton with a serial number of 1306123456 was manufactured in 2013.06
or June 2013
Surly is another ...
The Jeep is a giveaway. There really was a Raleigh Jeep. It's on page 7 of this 1971 catalogue.
You're right, it was meant for girls.
That massive headlight isn't original. Otherwise it's a nice looking bike that needs some work.
That is a tire liner.
I think http://sheldonbrown.com/flats.html is good reading on the topic of liners / flats in general - in particular, he generally doesn't recommend them (and I don't either). He also claims that if they're improperly installed, they can increase the frequency of flats. If you are prone to flats and you've eliminated improper ...
Astra was the Beacon Cycle house brand, according to Sheldon. As @Blam and @Daniel R Hicks say, it's a mid-range 80s bike (that's a compliment)! The lugs, while nothing special, aren't drainpipe thick - this is a good thing. It was probably built well. Crankset may be Stronglight, and the derailleur and front mech are probably Sachs-Huret. Basic components ...
Verde BMX at http://verdebmx.com/completes/
They appear to be based in Columbus, Ohio, USA.
I did a google image search for "BMX logo leaf" because it looks like a leaf to me
One of the images is this, which looks kind of similar
Following the link to their web site gave me this answer
This is a Cannondale frame, and i believe its from the model year 1990. The serial number reveals it was made July, 1990. Your bike does contain an aspect of the 1991 models which I'll discuss in a sec.
From 1986 to 1992, Cannondale used two versions of serial numbers, one of which was located on the bottom of the left chainstay as we see in your pics. ...
The Older Paradigm of Women's Specific Bikes
Argenti and Kaz both are correct, but let's dive a bit deeper into women's specific design (WSD). Their answers allude to an old paradigm of WSD. It appears to be based on anthropometric measurements collected by the US Army that was described as "decades old" in a 2017 interview with Stephanie Kaplan, a product ...
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 on RBikes.
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 fork" imagery, which reminded me of this question I read months ago (it's actually a common logo they use, not just on that album cover).
It turns out a company named Amity did ...
Apparently those are "Stop Flat Liners"... and the consensus at bikeforums is that they work well (as i inadvertently learned)
Think i will keep them and get cheap sleeks. may also get a pair for the other bike.
Looks like 70s Schauff Elite. Compare it with bike here, the frame has very distinct shapes. A similar bike is also listed at the official (correct me if I'm wrong) Schauff website, the picture under number 28.
It's a Schwinn Twinn. The serial number will be located on one of the rear dropouts, if it's not on either side of the head tube. There are a couple websites that will help you determine the date of manufacture. Judging from the type of tires fitted to the rim, and the shape of the rim, I surmise that the bike has had both wheels replaced at some point, as ...
Literature (old catalogues, fan websites, etc.)
I managed to date my old Raleigh by finding scans of old catalogues online. That model was only sold in one particular year, but more often you'd get it to within a few years this way. There are many old cycling documents at Veteran-Cycle Club Online Library, including plenty that can be accessed for free. ...
Can't tell. The threaded stem, cheap looking fork, along with the warning sticker on the crank not to thread the wrong side pedals in the wrong crank arm, along with the plastic chainguard on the crank, all point to it being a department store bike.
This is a very old military bike, estimates say circa 1898, credited to a French officer and cycling advocate Captain Gerrard (although actually probably designed by someone else). It is indeed a folding bike, one of the first of its kind. Soldiers on bicycle were a relatively common thing prior to the first world war. Lots more information here, The BSA &...
Going out on a limb I'll say it's a Haro Escape frame c2002 - 2005 with donor parts from a c2001 Fuji. Haro's have a decipherable serial number for BMXs so MTB might be similar check here to see if that is any help in confirming.
If it was the Haro Escape it could well be a good frame to rebuild with a 150mm fork for a fun AM/FR hardtail.
Looks like a generic beach cruiser - not very old either. The brazed lugs on the downtube suggest it was a geared bike, converted to single speed.
The V brakes say its no older than the 90s, and probably post-2000.
Its doesn't appear to be anything specifically Italian. Still if it rides nicely, then ride it. There's likely no museum or vintage ...
Google is your friend. Based on a report from the South Yorkshire Police , they received a report of a stolen BMX with "mbi-2325" as the "serial number" in 2010.
Seems to be a mistake in that was a frame model and the serial number is one of the other values.
However this same police report lists it as
MIRRACO BLEND 2 BMX BIKE BROWN 09
which means ...