Go Back  Bike Forums > Bike Forums > Mountain Biking
Reload this Page >

Chain derailing at front derailer, between sprockets

Search
Notices
Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

Chain derailing at front derailer, between sprockets

Thread Tools
 
Search this Thread
 
Old 02-10-14, 07:52 AM
  #1  
Senior Member
Thread Starter
 
Join Date: Feb 2014
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Chain derailing at front derailer, between sprockets

I'm not sure what is causing this.
I have a new bike, my first in ten years actually.
Twice now, I've had the chain derail off the front while shifting between gears. (I'm pretty sure from 2nd to first).
It actually slipped off, and fell down between the sprockets where it was lodged pretty hard. Should this gap be large enough for the chain to fall into? I'm wondering if there is an adjustment I can do, or if there is a problem with the front system somewhere.
Pardon my noobiness.

I appreciate any help I may receive.
dirthurts is offline  
Old 02-10-14, 06:09 PM
  #2  
Bike Junkie
 
roccobike's Avatar
 
Join Date: Jun 2005
Location: South of Raleigh, North of New Hill, East of Harris Lake, NC
Posts: 9,622

Bikes: Specialized Tarmac, Specialized Roubaix, Giant OCR-C, Specialized Stumpjumper FSR, Stumpjumper Comp, 88 & 92Nishiki Ariel, 87 Centurion Ironman, 92 Paramount, 84 Nishiki Medalist

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 68 Post(s)
Likes: 0
Liked 37 Times in 27 Posts
A chain lodged between gears on the chainwheels? Wow, the only time I've heard of that is when somone upgraded an old 7 speed or 6 speed set up to 10 speed and didn't change the cranks.
On a new bike, having a shifting problem can occur, but the chain should NEVER get caught between chainwheels. Was this purchased from an LBS or is this a Wally World or The Big Zero bike (big mox store?
__________________
Roccobike BF Official Thread Terminator
roccobike is offline  
Old 02-10-14, 06:46 PM
  #3  
Senior Member
Thread Starter
 
Join Date: Feb 2014
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
It's actually a Diamondback I picked up from REI.
I think I've found the problem. There is somehow a small gap between the sprockets, combined with a very slight warp to the 2nd sprocket. This may actually be a product of the event, but either way it's an issue. I'm going to have them repair it as it's only about a week old. I think the initial problem was a poorly adjusted front derailed, and the gap.
dirthurts is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Desmond56
General Cycling Discussion
16
10-22-17 12:57 PM
jefnvk
Bicycle Mechanics
7
06-05-15 01:02 PM
mrblue
Bicycle Mechanics
8
08-11-14 02:14 PM
stephr1
Bicycle Mechanics
2
10-02-12 10:11 AM
oneofpr
Bicycle Mechanics
7
06-30-11 09:22 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.