Singlespeed & Fixed Gear - drops

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minicooper
07-03-04, 08:34 PM
the word "drops" is used seemingly to refer to both a kind of handlebar, and a kind of frame that the rear wheel's axle sits in.

What gives?


Cynikal
07-03-04, 10:39 PM
I think you are confusing drops and dropouts. Drops are the typical road style handlebars. Dropouts are where your wheels go.

Schiek
07-04-04, 09:47 AM
If you want to have some real fun, go into the bike mechanic forum and ask what "pitch" refers to.


brunning
07-04-04, 11:54 AM
there is only one correct definition of pitch when referring to chains. it's not opinion or semantics, those who refer to 1/8" and 3/32" widths as pitch are just wrong.

from sheldon brown's glossary entry on pitch: (http://www.sheldonbrown.com/gloss_p.html#pitch)



Pitch

The pitch of a chain is the distance between adjacent drive rollers. All modern bicycles use 1/2" pitch. Some older chains, especially those used on track bicycles used 1" pitch chain (see skip link and block chain.) For a while, Shimano experimented with a 10 mm pitch for track use, but it never caught on.

Sometimes people mistakenly refer to "track pitch" vs. "road pitch" when they are really referring to the wider (1/8") sprockets used on single-speed bicycles, instead of the 3/32" thick sprockets used on derailer-equipped bicycles.

cavit8
07-04-04, 04:58 PM
the word "drops" is used seemingly to refer to both a kind of handlebar, and a kind of frame that the rear wheel's axle sits in.

What gives?

Drops are, more technically, the part of a drop handlebar below the brakes. As quoted above, Sheldon Brown has an excellent glossary. It has an explanation of the clipless versus clip pedal systems as well.

Schiek
07-04-04, 09:39 PM
defense rests.




there is only one correct definition of pitch when referring to chains. it's not opinion or semantics, those who refer to 1/8" and 3/32" widths as pitch are just wrong.

from sheldon brown's glossary entry on pitch: (http://www.sheldonbrown.com/gloss_p.html#pitch)



Pitch

The pitch of a chain is the distance between adjacent drive rollers. All modern bicycles use 1/2" pitch. Some older chains, especially those used on track bicycles used 1" pitch chain (see skip link and block chain.) For a while, Shimano experimented with a 10 mm pitch for track use, but it never caught on.

Sometimes people mistakenly refer to "track pitch" vs. "road pitch" when they are really referring to the wider (1/8") sprockets used on single-speed bicycles, instead of the 3/32" thick sprockets used on derailer-equipped bicycles.

OneTinSloth
07-05-04, 08:19 AM
there is only one correct definition of pitch when referring to chains. it's not opinion or semantics, those who refer to 1/8" and 3/32" widths as pitch are just wrong.

from sheldon brown's glossary entry on pitch: (http://www.sheldonbrown.com/gloss_p.html#pitch)

[INDENT]
Pitch


The pitch of a chain is the distance between adjacent drive rollers. All modern bicycles use 1/2" pitch. Some older chains, especially those used on track bicycles used 1" pitch chain (see skip link and block chain.) For a while, Shimano experimented with a 10 mm pitch for track use, but it never caught on.

it didn't not catch on...it was banned by the UCI because they thought it was unfair. ****ing UCI.....

skitbraviking
07-05-04, 09:10 AM
defense rests.

Oh, but wait! If you bike mechanic is also a fan and/or player of European football, then you may get a completely different answer.

Schiek
07-05-04, 09:58 AM
Oh, but wait! If you bike mechanic is also a fan and/or player of European football, then you may get a completely different answer.

That was my whole point. Pitch seems to be used for a whole host of different measurements and meanings, one of which Brunning so eloquently and forcefully defended. To wit, his definitive reply illustrates the type of back and forth that routinely develops on these topics with the expert bike mechanics and linguists found in other parts of our friendly confines.

Anyway...

Moose
07-05-04, 03:53 PM
Pitch is the angle between the top tube and the down tube. Oh no...wait...it's the distance between the spokes measured at the midpoint between the rim and the hub. The offset of the fork is commonly called pitch-FORK or rake, I am not sure.

kidcolin
07-05-04, 04:47 PM
i'm not so sure about bike mechanic jargon, but i believe brunning and sheldon brown have the actual 'correct' definition, regardless of what it's actually used for. i'm only saying this because it is used in other fields (such as engineering and technology). an example:
with CCDs (the sensing element of a digital camera or spectrometer), the 'pitch' refers to the distance between the centerpoints of adjacent pixels.

crustedfish
07-05-04, 09:20 PM
Drops are the typical road style handlebars. Dropouts are where your wheels go.

not necessarily. track bikes don't have dropouts. they have track ends.

Cynikal
07-06-04, 12:15 AM
not necessarily. track bikes don't have dropouts. they have track ends.

Yeah yeah yeah, I've read Sheldon's site. Just trying to offer explaination without confusing the lad. :D
With such a basic question I gave a rather basic answer.

Disclaimer: If I've misspelled anything in this post it's due to my current state of drunkenness.


Cheers