A Cycling & bikes forum. CycleBanter.com

Go Back   Home » CycleBanter.com forum » rec.bicycles » Techniques
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Ventura 1/2x1/8" and 1/2x3/32" chain



 
 
Thread Tools Display Modes
  #1  
Old July 6th 18, 09:16 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
external usenet poster
 
Posts: 906
Default Ventura 1/2x1/8" and 1/2x3/32" chain

Ventura [1] has single speed chains that are
1/2x1/8", but also 1/2x3/32".

If there isn't a marking, can you deduct the
chain size from the width of the chainring
and/or sprocket?

Probably either chain will work, right?

$ echo $(( 1/8.0 ))
0.125
$ echo $(( 3/32.0 ))
0.09375

[1] http://www.ventura-parts.com

--
underground experts united
http://user.it.uu.se/~embe8573
Ads
  #2  
Old July 7th 18, 08:27 PM posted to rec.bicycles.tech
[email protected]
external usenet poster
 
Posts: 9
Default Ventura 1/2x1/8" and 1/2x3/32" chain

On Friday, July 6, 2018 at 3:16:27 PM UTC-5, Emanuel Berg wrote:
Ventura [1] has single speed chains that are
1/2x1/8", but also 1/2x3/32".

If there isn't a marking, can you deduct the
chain size from the width of the chainring
and/or sprocket?

Probably either chain will work, right?

$ echo $(( 1/8.0 ))
0.125
$ echo $(( 3/32.0 ))
0.09375

[1] http://www.ventura-parts.com

--
underground experts united
http://user.it.uu.se/~embe8573


1/8 inch 3.2 mm is fixed / freewheel single speed only.
3/32 inch 2.4 mm is derailuer wheel inside width. Some fixed / freewheel also use this size to allow switching.

OUTSIDE width needs to be determined since it varies for each 6 to 11 gears.
https://en.wikipedia.org/wiki/Bicycle_chain#Width
  #3  
Old July 8th 18, 03:58 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
external usenet poster
 
Posts: 906
Default Ventura 1/2x1/8" and 1/2x3/32" chain

mike.phone.schwab wrote:

1/8 inch 3.2 mm is fixed / freewheel single
speed only. 3/32 inch 2.4 mm is derailuer
wheel inside width. Some fixed / freewheel
also use this size to allow switching.


Okay, but what do the digits 3.2 mm and
2.4 mm indicate?

--
underground experts united
http://user.it.uu.se/~embe8573
  #4  
Old July 8th 18, 11:20 PM posted to rec.bicycles.tech
Mike A Schwab
external usenet poster
 
Posts: 414
Default Ventura 1/2x1/8" and 1/2x3/32" chain

On Sunday, July 8, 2018 at 9:58:47 AM UTC-5, Emanuel Berg wrote:
mike.phone.schwab wrote:

1/8 inch 3.2 mm is fixed / freewheel single
speed only. 3/32 inch 2.4 mm is derailuer
wheel inside width. Some fixed / freewheel
also use this size to allow switching.


Okay, but what do the digits 3.2 mm and
2.4 mm indicate?

--
underground experts united
http://user.it.uu.se/~embe8573


Those are the metric equivalent of the gap inside the chains. The outside width varies by 6, 7, 8, 9, 10, 10N, 10ND, 11 gears.
  #5  
Old July 9th 18, 12:47 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
external usenet poster
 
Posts: 906
Default Ventura 1/2x1/8" and 1/2x3/32" chain

Mike A Schwab wrote:

Those are the metric equivalent of the gap
inside the chains. The outside width varies
by 6, 7, 8, 9, 10, 10N, 10ND, 11 gears.


Aha, here it is:

Chains come in 3/32 in (2.4 mm), 1/8 in
(3.2 mm), 5/32 in (4.0 mm), or 3/16 in
(4.8 mm) roller widths, the internal width
between the inner plates. 1/8 in (3.2 mm)
chains are typically used on bikes with
a single rear sprocket: those with coaster
brakes, hub gears, fixed gears such as
track bicycles, or BMX bikes. Chains with
3/32 in (2.4 mm) wide rollers are generally
used on bikes with derailleurs such as
racing, touring, and mountain bikes.
Fixed sprockets and freewheels are also
available in 3/32 in (2.4 mm) widths so
fixed-gear and single-speed bikes can be
set up to use the narrower and lighter 3/32
in (2.4 mm) chains. [1]

[1] https://en.wikipedia.org/wiki/Bicycle_chain#Width

--
underground experts united
http://user.it.uu.se/~embe8573
  #6  
Old July 9th 18, 01:09 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
external usenet poster
 
Posts: 906
Default Ventura 1/2x1/8" and 1/2x3/32" chain

Mike A Schwab wrote:

Those are the metric equivalent of the gap
inside the chains. The outside width varies
by 6, 7, 8, 9, 10, 10N, 10ND, 11 gears.


Ah, seems to check out. The 1/2x1/8" notation
is (plate length) x (roller width) with "roller
width" = "gap inside the chains".

$ units '1|8 in' mm
* 3.175
/ 0.31496063
$ units '3|32 in' mm
* 2.38125
/ 0.41994751

--
underground experts united
http://user.it.uu.se/~embe8573
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Chain Slips with new SRAM chain and "slightly used" Ultegra Cassette Doug T Techniques 14 October 15th 11 04:57 PM
"The Chain That Binds,Cycling and Coffee's Unlikely Partnership" Article in Fresh Cup Magazine--No autographs please. PeteSig[_2_] Techniques 1 March 11th 08 06:59 PM
Chains, Rollers, Stretch, Checkers, "chain ring test" wle Techniques 4 October 30th 06 08:37 PM
A couple of SRAM chain "chain stretch" questions TomYoung Techniques 4 June 27th 05 09:46 PM
"The Dancing Chain" by Frank Berto, new edition now in stock Sheldon Brown Marketplace 0 February 15th 05 06:40 PM


All times are GMT +1. The time now is 10:03 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2004-2018 CycleBanter.com.
The comments are property of their posters.