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Screwdriver tipsChain service

Hans-Peter Ettenberger

 · 17.07.2012

Screwdriver tips: Chain servicePhoto: Georg Grieshaber
Screwdriver tips: Chain service
The chain has one of the dirtiest jobs on the bike - it leaves its mark. Our BIKE lab manager shows you how to repair a broken chain, replace worn MTB chains and cut them to the correct length.

Determining the correct length of MTB chains

To do this, place the old and new chains next to each other and shorten the new chain accordingly or count the chain links and shorten the new chain to the same number of links. The alternative if you no longer have the old chain to hand: You thread the chain, then put it on the large chainring and small sprocket. The derailleur cage should be vertical when the chain is closed.

At the front on the large chainring, at the rear on the smallest sprocket: If the rear derailleur is then positioned vertically under the sprocket, the chain on the bike has the correct length.Photo: Georg Grieshaber At the front on the large chainring, at the rear on the smallest sprocket: If the rear derailleur is then positioned vertically under the sprocket, the chain on the bike has the correct length.

You will need this tool to work on the MTB chain:

  • Chain
  • Riveting tool
  • Rohloff Calibre
  • Pliers for chain lock
  • Rags
  • Lubricant
  • Spoke as a "third hand"


For travelling:

Mini tool with riveting tool
Suitable chain lock and/or rivet pin (important: there are different pins and chain locks for 9/10/11/12-speed chains)

Modern MTB chains can be locked with a rivet pin or a chain lock. Always make sure that the rivet pin/chain lock matches your chain! This is because the products are different for 9/10/11/12-speed chains.Photo: Georg Grieshaber Modern MTB chains can be locked with a rivet pin or a chain lock. Always make sure that the rivet pin/chain lock matches your chain! This is because the products are different for 9/10/11/12-speed chains.


In the PDF download you will find repair instructions for chain breakage and chain replacement.

Downloads:

Workshop: Chain service (pdf)

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