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e*thirteen components know that prices seem to be forever rising and costs going up. They know that you've invested in the perfect set-up for your bike but now want to switch to the latest '1x' set-up this season. They are also aware that you don't want to throw away that new clutch rear derailleur you've just purchased and fitted to your bike.

With all this in mind, enter the e*thirteen Extended Range EX Cog designed to give you the ability to switch your current set-up but keep your current 10 speed drive chain components. The EX Cog gives you a larger gear range and the ability to switch to a single front chainring all whilst keeping your costs down and without the need to relegate your current drive chain to the bin.

OK, so here are the basics:

  • It's an add-on cog to extend gear range of 10 spd. Shimano™ and SRAM™ cassettes
  • It comes in 40t and 42t for use with Shimano™ cassettes and a 42t only for use with SRAM™ cassettes
  • Installing your EX Cog is easy. Remove the 15t or 17t cog from your cassette, place the EX Cog on your freehub then install your existing cassette back in place (complete instructions here)
  • Each EX Cog is timed and ramped specific to Shimano™ and SRAM™ cassettes
  • The EX Cog comes with a longer steel replacement, B-limit screw for your derailleurs. Your current one won't be long enough to get the best shifting up to the new cog
  • Available in Black, Red, and Blue

    Shipping to stores from the May 2014

    Silverfish UK Ltd. Units 3a-3c Woodacre Court, Saltash Parkway Industrial Estate, Burraton Road, Saltash, Cornwall, United Kingdom, PL12 6LY
    Silverfish UK Ltd. (Registration No. 4075057).

    Technical specifications are for guidance only and cannot be guaranteed accurate. All offers are subject to availability and while stocks last. Errors and omissions excepted. Silverfish UK Limited acts as a credit intermediary and only offers credit products for Close Brothers Retail Finance. Its registered office is: Close Brothers Group plc, 10 Crown Place, London EC2A 4FT. Credit is subject to application and status.

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