just converted my bike, chain keeps falling off the front- Mtbr.com
Results 1 to 10 of 10
  1. #1
    mtbr member
    Reputation: bike_rider_v2.0's Avatar
    Join Date
    Aug 2005
    Posts
    24

    just converted my bike, chain keeps falling off the front

    I just converted a bike to a singlespeed and got a surly singlator to keep the chain tight. I couldn't get it to work right so i took it to the shop and they said they fixed it up. When i rode last weekend the chain came off twice, and it looked like it came off the front. i think i might need to tighten the singlator, but i am not sure. what should i do?
    that bike makes me want to crack open my skull and let out all the faries

  2. #2
    mtbr member
    Reputation: pacman's Avatar
    Join Date
    Jan 2004
    Posts
    3,931
    Quote Originally Posted by bike_rider_v2.0
    I just converted a bike to a singlespeed and got a surly singlator to keep the chain tight. I couldn't get it to work right so i took it to the shop and they said they fixed it up. When i rode last weekend the chain came off twice, and it looked like it came off the front. i think i might need to tighten the singlator, but i am not sure. what should i do?
    If the chain comes off the front its probably the chainline. Make sure the cog is perfectly in line with the chainring. (I'll guess you're using old components - chain and chainring - built for shifting)

  3. #3
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
    Join Date
    Dec 1998
    Posts
    48,236
    * Chainline off?
    * Using a ramped ring/cog?
    * Chain too long?
    * Singulator pushing up or down?
    mtbtires.com
    The trouble with common sense is it is no longer common

  4. #4
    Desert Saildier
    Reputation:
    Join Date
    Aug 2005
    Posts
    52
    I had the same issue, and it was "fixed" when I bought an actual SS cog (Gusset One-er) and an actual SS chainring, and a half link on my 8spd chain negating the need for my Surly Singleator.
    Seafarinman
    IT1(SW) USN
    2K Access Ti SS magic 32/20
    2K4 Jamis Komodo SS magic 32/20

  5. #5
    mtbr member
    Reputation: bike_rider_v2.0's Avatar
    Join Date
    Aug 2005
    Posts
    24
    the shop said the chainline was straight, and they said they got the chain to as close as the right size as possible. The singleator is pushing down. and yes i am using old components
    that bike makes me want to crack open my skull and let out all the faries

  6. #6
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
    Join Date
    Dec 1998
    Posts
    48,236
    Quote Originally Posted by bike_rider_v2.0
    the shop said the chainline was straight, and they said they got the chain to as close as the right size as possible. The singleator is pushing down. and yes i am using old components
    * Get rid of the ramped ring/cog
    * Switch the Singleator to push up
    mtbtires.com
    The trouble with common sense is it is no longer common

  7. #7
    Bike Pimp
    Reputation: D@WS's Avatar
    Join Date
    Sep 2005
    Posts
    242
    Quote Originally Posted by shiggy
    * Get rid of the ramped ring/cog
    * Switch the Singleator to push up
    That and repalce the chain while you're at it.
    Wrenchscience.com
    ...Your local bike shop....

  8. #8
    mtbr member
    Reputation:
    Join Date
    Mar 2005
    Posts
    216
    Replace the current spring with one from an old cantilever brake caliper. It will last longer and allow more tension without stripping the aluminum out of the singulator. When you install the singulator using this method use it in the pull down mode. Tension the spring so that it is locked-out....i.e. won't even allow the singulator to move in the 'up' direction. Therefore, when you go over bumps the singulator won't recoil and dump the chain. With this setup you can use a ramped cog without problem.

  9. #9
    mtbr member
    Reputation: bike_rider_v2.0's Avatar
    Join Date
    Aug 2005
    Posts
    24
    thanks, ill see how it works
    that bike makes me want to crack open my skull and let out all the faries

  10. #10
    Penis Goat!
    Reputation: GirchyGirchy's Avatar
    Join Date
    Dec 2003
    Posts
    804
    Switch the Singleator to push-up mode. Buy a new non-ramped chainring, rear cog, and chain. Don't half-ass the conversion, or it probably won't work.

    Cleve, why do all of that to use a ramped rear cog? Do you realize you can go buy a Shimano DX or Novatech BMX cog for $3-5?

Members who have read this thread: 0

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

THE SITE

ABOUT MTBR

VISIT US AT

© Copyright 2019 VerticalScope Inc. All rights reserved.