Wolf Tooth introduces 45-tooth upgrade kit for Shimano

Wider range option Shimano’s 11-speed XT and XTR cassettes

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

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.

The kit consists of 45t and 18t chainrings along with a spacer:
The kit consists of 45t and 18t chainrings along with a spacer:

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%

The Wolf Tooth/Lindarets GoatLink is not required for this wide range conversion, but using it will reposition the derailleur for this wider range drivetrain, which will result in better shifting.

This new addition to the Wolf Tooth line puts it closer, but not on par with One-Up’s 10-50t Shark kit, which provides a 500% range, but costs more than twice as much as the GC45 kit.

For more information, visit www.wolftoothcomponents.com.

Josh Patterson

Tech Editor, US
Josh has been riding and racing mountain bikes since 1998. Being stubborn, endurance racing was a natural fit. Josh bankrolled his two-wheeled addiction by wrenching at various bike shops across the US for 10 years and even tried his hand at frame building. These days Josh spends most of his time riding the trails around his home in Fort Collins, Colorado.
  • Discipline: Mountain, cyclocross, road
  • Preferred Terrain: Anywhere with rock- and root-infested technical singletrack. He also enjoys unnecessarily long gravel races.
  • Current Bikes: Trek Remedy 29 9.9, Yeti ASRc, Specialized CruX, Spot singlespeed, Trek District 9
  • Dream Bike: Evil The Following, a custom Moots 27.5+ for bikepacking adventures
  • Beer of Choice: PBR
  • Location: Fort Collins, CO, USA

Related Articles

Back to top