The ISCG 05 version of the Elite Chain Reactor has a unique, lower arm that allows the pulley to be adjusted as close to the chain-ring as possible. The Chain Reactor 'locks' the chain on when using a dual front chain-ring/bash-guard set up.

• Dual pulley lower chain device.
• Stainless steel hardware with tough PU pulley with sealed bearings.
• DMR products are designed and tested in the UK.
• Weight: 125 grams
  

To Fit ISCG 05 (BCD 73mm) only.