Go Back  Bike Forums > Bike Forums > Folding Bikes
Reload this Page >

IGH on a Mercier Nano.

Notices
Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

IGH on a Mercier Nano.

Old 07-22-11, 05:38 PM
  #1  
Dynocoaster 
Senior Member
Thread Starter
 
Join Date: May 2004
Location: Pacific Northwest
Posts: 3,097

Bikes: Too many....................

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Likes: 0
Liked 7 Times in 2 Posts
IGH on a Mercier Nano.

I want to put a IGH on my Nano and what is the best way to install a IGH with vertical dropouts?
__________________
Speed Uno
Dawes Kingpin 2speed
Dynocoaster is offline  
Old 07-22-11, 06:06 PM
  #2  
BruceMetras
Senior Member
 
Join Date: Aug 2005
Location: San Rafael, California
Posts: 2,097
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 113 Post(s)
Likes: 0
Liked 5 Times in 4 Posts
Originally Posted by Dynocoaster View Post
I want to put a IGH on my Nano and what is the best way to install a IGH with vertical dropouts?
EBB, magic ratio, half link (TBD) ... you can always use a Singulator or the like, but that sort of adds a negative aesthetic to my eye..
BruceMetras is offline  
Old 07-22-11, 06:15 PM
  #3  
Dynocoaster 
Senior Member
Thread Starter
 
Join Date: May 2004
Location: Pacific Northwest
Posts: 3,097

Bikes: Too many....................

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Likes: 0
Liked 7 Times in 2 Posts
What is magic ratio and half link(TBD)?
__________________
Speed Uno
Dawes Kingpin 2speed
Dynocoaster is offline  
Old 07-23-11, 12:21 AM
  #4  
fietsbob
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,598

Bikes: 8

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 7607 Post(s)
Liked 1,283 Times in 801 Posts
half link has bent side plates so an inner link on one end, and a outer link on the other..
and it is just 1/2 inch between ..

in 1/8" there are chains made up entirely of this half link , links.

alternatively may have to add/subtract a tooth in the drive train to make it 'so'

a double pulley chain tensioner is easier .. the Rohloff one is great !
2 versions one sits closer to the cog than the other ..

Last edited by fietsbob; 07-23-11 at 12:27 AM.
fietsbob is offline  
Old 07-24-11, 08:41 AM
  #5  
Dynocoaster 
Senior Member
Thread Starter
 
Join Date: May 2004
Location: Pacific Northwest
Posts: 3,097

Bikes: Too many....................

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Likes: 0
Liked 7 Times in 2 Posts
Thank you for the explanation. What do you think of the Shimano Alfine adjuster. The Rohloff is a bit too expensive for me but looks great.
__________________
Speed Uno
Dawes Kingpin 2speed
Dynocoaster is offline  
Old 07-24-11, 08:53 AM
  #6  
mconlonx 
Str*t*gic *quivoc*tor
 
mconlonx's Avatar
 
Join Date: Jun 2007
Posts: 7,552
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 7068 Post(s)
Liked 70 Times in 48 Posts
Cheap bastard IGH extended range setup, do this:

Get the IGH wheel. Keep the double chainring up front and front shifting. Use the rear derailleur as a tensioner -- you can either use a super short length of shifter cable, with the head inside the rear der adjuster, or the high limit screw to align the upper pulley with the cog.

Voila! Now you got a dual range IGH setup for cheaper than a legit single chainring/tensioner mod.

The Alfine tensioner accommodates a double chainring up front, but since you're starting with a tensioner (derailleur) already, why bother?
__________________
I know next to nothing. I am frequently wrong.
mconlonx is offline  
Old 07-24-11, 10:19 AM
  #7  
james_swift
All ur bike r belong Enki
 
james_swift's Avatar
 
Join Date: Aug 2005
Location: San Fransicko
Posts: 816
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by BruceMetras View Post
EBB, magic ratio, half link (TBD) ... you can always use a Singulator or the like, but that sort of adds a negative aesthetic to my eye..
I fussed with all sorts of chainring/cog/chain link combinations on my Nano and found one gear combination that gives 1/2" max chain sag on a mildly stretched single-speed chain: 50x14 w/46 links. You might be able to get away with 47x13 and 56x15, but once the chain stretches a bit, you'll end up with more than 1/2" chain sag (more like 3/4"-1").

The official specs on the Nano say that the chainstay length is 375mm. I've found it to be more like 373.9mm.



I'm using 1/8" drivetrain components.

Last edited by james_swift; 07-25-11 at 10:43 AM.
james_swift is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rickrob
Bicycle Mechanics
3
06-25-18 10:11 AM
mrmb
Bicycle Mechanics
9
01-08-16 11:32 AM
JonD
Bicycle Mechanics
18
01-09-15 04:18 PM
totops1
Bicycle Mechanics
12
06-10-14 10:41 PM
EpicSchwinn
Singlespeed & Fixed Gear
49
09-04-11 08:38 AM

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.