|   Shortening a chain | abox
Jul 16, 2003 3:17 PM | | I bought a new chain and I need to shorten it to fit the drivetrain. Is there a simple way to figure out how many links I need to take out without doing trial and error? |
| Like so... | næstep
Jul 16, 2003 3:27 PM | | Wrap around the big ring and big cog, bypassing the rear derailleur. Factor in either 2 or 3 links (as necessary to complete the connection) and cut it there.
næstep |
| Or, if you had no complaints with your previous chain ... | OldSchool
Jul 16, 2003 3:57 PM | | as far as shifting, chainslap, and ability to run while big-big cross-chained, then just line up your new chain next to your old chain and cut at the same number of links.
Tim |
| Almost dialed in...one more Q | abox
Jul 16, 2003 6:22 PM | | OK, thanks...I saw that on a diagram and somehow thought it meant to go through the derailleur. My maintenance book says that the chain should be short enought not to hang loose while it runs over the smallest ring and the smallest cog. After shortening it per your diagram, it does drag on the chainstay in the small ring/small cog config. Do I need to shorten it some more? |
| shorten no more. | heatstroke
Jul 16, 2003 6:48 PM | | you should not run small cog small ring combo or big - big. Just use big to big + 2 links to get the right chain length. Cut, thread through the derailler and you are done. |
| agreed, small-small drag is inconsequential (nm) | næstep
Jul 16, 2003 8:35 PM | | |
| If the old chain was ok in length... | Lucky
Jul 17, 2003 5:47 AM | | then lay the new and old chains side by side on a workbench and match up the links. Cut off the new one to leave the same number of links. Piece of cake.
Kathy :^) |
| New crankset...old chain too short. (nm) | abox
Jul 17, 2003 6:32 AM | | |
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