Wolf Tooth introduces 45-tooth upgrade kit for Shimano

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Wolf Tooth Components recently released details of a range-extending add-on for Shimano 11-speed cassettes.

• First ride: SRAM Eagle
• Shimano introduces new wide ratio cassette and rings

While Shimano is set to release an XT-level cassette with an extended range from 11 to 46t this summer, riders who have already purchased 11-speed Shimano mountain cassettes with 11-40t and 11-42t ranges can extended them even further with Wolf Tooth’s 11-Speed Cassette Extender.

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The 11-speed GC45 kit is compatible with XT and XTR cassettes and retails for $89.95/£62/AU$125. It consists of 18t and 45t cogs and a spacer.

Shimano XTR and XT 11-40t cassette conversion

• Gearing: 11-13-15-18-21-24-27-31-35-40-45 
• Total range increase from 364% to 409%

Shimano XT 11-42t cassette conversion

• Gearing: 11-13-15-18-21-24-28-32-37-42-45 
• Total range increase from 382% to 409%

You can read more at BikeRadar.com

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