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

Planning if my chain breaks

Notices
Electric Bikes Here's a place to discuss ebikes, from home grown to high-tech.

Planning if my chain breaks

Old 02-17-18, 08:25 PM
  #1  
Alligator
Senior Member
Thread Starter
 
Alligator's Avatar
 
Join Date: Sep 2011
Location: Minneapolis, MN
Posts: 128
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Planning if my chain breaks

I just installed a BBSHD motor on my bike, and it is a lot more powerful than I expected. I really like this increased power, but I'm worried about breaking my chain. If I break it during a commute, I want to be prepared.

I have this tool already, although it is a little large for a small tool kit.


I understand I need some replacement links (?). Can someone tell me what these are and suggest one that might work?

I'd like to put these items in my repair kit to be ready. Or should I just carry a spare chain?
Alligator is offline  
Old 02-17-18, 10:21 PM
  #2  
2old
Senior Member
 
Join Date: Jul 2014
Posts: 1,713
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 246 Post(s)
Liked 27 Times in 23 Posts
It's possible to repair a broken chain with a chain breaker, but much easier to just use a quick link. Just procure one for your chain (9, 10 or whatever speed it is). Also, many small multi-tools have a chain breaker in addition to other tools.
2old is offline  
Old 02-17-18, 11:01 PM
  #3  
CliffordK
Senior Member
 
CliffordK's Avatar
 
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Posts: 23,311
Mentioned: 181 Post(s)
Tagged: 0 Thread(s)
Quoted: 9564 Post(s)
Liked 270 Times in 211 Posts
I carry a chain tool with me most of the time. Some of the bike repair hex wrench sets also include a mini chain tool. It has come in handy a few times. The alternative could be a very long walk.

If you have 8 speed or less, and perhaps 9 speed, then you can just push out a pin, and shorten the chain and re-install. Be careful of cross-chaining if you field shorten the chain. Check for a worn chain if you're breaking chains, and perhaps replace anyway.

10s or 11s really should get a special link pin, or quick connect, but do what you need in a pinch.
CliffordK is offline  
Old 02-18-18, 10:17 AM
  #4  
Alligator
Senior Member
Thread Starter
 
Alligator's Avatar
 
Join Date: Sep 2011
Location: Minneapolis, MN
Posts: 128
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
What does the bike speed have to do with the type of chain? If it helps, I'm using this on a Cannondale Trail 7.
Alligator is offline  
Old 02-18-18, 11:48 AM
  #5  
Doc_Wui
Senior Member
 
Doc_Wui's Avatar
 
Join Date: Jul 2015
Location: Chicago Suburbs
Posts: 823

Bikes: GT Transeo & a half dozen ebike conversions.

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 194 Post(s)
Liked 9 Times in 7 Posts
When you push out a pin, it's not easy to push it back in so that the link doesn't bind. And if it binds, it tends to wrap around the small gears in the derailleur and cause the chain to slip. When this happens on a BBS motor, you really feel it. If you fiddle with the tool and do it by feel, you might get the link to work freely. Not easy out in the field or even at home.

The bikes with 8-10 speeds use thinner chains where I guess it's even harder to push a pin in correctly.

When I asked about this in the bike mechanics forum, they told me to use master links. KMC, the chain maker, also tells you to use master links. Anyway, they're not expensive and work nice, except you might need a link pliers, and you still need a chain breaker too.
Doc_Wui is offline  
Old 02-18-18, 11:56 AM
  #6  
trailangel
Senior Member
 
trailangel's Avatar
 
Join Date: Feb 2014
Location: Pasadena, CA
Posts: 3,877

Bikes: Schwinn Varsity

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 1414 Post(s)
Liked 120 Times in 82 Posts
Is your bike 9 speed?
Maybe use an ebike chain to get it to last longer:
https://www.universalcycles.com/shop...99&category=59
trailangel is offline  
Old 02-18-18, 01:01 PM
  #7  
2old
Senior Member
 
Join Date: Jul 2014
Posts: 1,713
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 246 Post(s)
Liked 27 Times in 23 Posts
Originally Posted by Alligator View Post
What does the bike speed have to do with the type of chain? If it helps, I'm using this on a Cannondale Trail 7.
Number of "gears" (known as "speed", as in 8-speed, 9-speed etc) in the cassette determines which quick link to procure.
2old is offline  
Old 02-18-18, 01:03 PM
  #8  
Alligator
Senior Member
Thread Starter
 
Alligator's Avatar
 
Join Date: Sep 2011
Location: Minneapolis, MN
Posts: 128
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Excellent information, thanks!
Alligator is offline  
Old 02-19-18, 12:28 PM
  #9  
chas58
Senior Member
 
chas58's Avatar
 
Join Date: Jul 2010
Location: Michigan
Posts: 3,905

Bikes: too many of all kinds

Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 813 Post(s)
Liked 103 Times in 83 Posts
Originally Posted by Doc_Wui View Post
When you push out a pin, it's not easy to push it back in so that the link doesn't bind. And if it binds, it tends to wrap around the small gears in the derailleur and cause the chain to slip. When this happens on a BBS motor, you really feel it. If you fiddle with the tool and do it by feel, you might get the link to work freely. Not easy out in the field or even at home.

The bikes with 8-10 speeds use thinner chains where I guess it's even harder to push a pin in correctly.

When I asked about this in the bike mechanics forum, they told me to use master links. KMC, the chain maker, also tells you to use master links. Anyway, they're not expensive and work nice, except you might need a link pliers, and you still need a chain breaker too.
You asked them about binding?

Answer: The way to avoid that is to use a
Park Tool CT-5 (or similar). it has a second shelf that allows you to easily back the pin out a little to loosen the link (and not compress the link like the bottom shelf).
There is a short mention of this in the video (at 24 seconds):

The tool pictured above has only one shelf, and may not do this effectively.

Note this tool has two shelves:





Park Tool CT-5
chas58 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Honda_03
Bicycle Mechanics
8
10-01-17 03:25 PM
12strings
Bicycle Mechanics
37
01-29-15 08:42 PM
Dimitri001
Bicycle Mechanics
16
10-08-13 04:59 AM
jmX
Bicycle Mechanics
41
01-12-11 08:09 PM
calbrner
Road Cycling
35
06-26-10 06:11 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

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