||15 hours ago
||Cassettes / Sprocket / Cogs
The GC 49 is the latest addition to the legendary GC line and it's the biggest yet. The GC 49 cassette extender cog allow you to modify your 11 speed 11-42T cassette from Shimano to create an ultra-wide range 11T-49T cassette. To achieve the optimal shifting, the GCs are optimized for Shimano or SRAM / SunRace cassettes. Includes 18T cassette cog for optimal gearing in the smaller cogs.
You might ask why 49t rather than 50t, and the answer is simple. It allowed us to nearly double the number of shift gates from 4 on a 50t to 7 on a 49t...so you get much faster shifting. With cogs this big this is critcal as you can be waiting nearly a half revolution of the crankset before you will see a shift with only 4 shift gates. The 49t is only 2% different than a 50t, which is so small it won't be noticed.
Order the correct cage to match your derailleur: GS is medium cage (measures 88 mm between pulley centers) and SGS is long cage (measures 107 mm between pulley centers). Cages are also different between XT and XTR!
Compatible only with Shimano 11-speed 11-42 cassettes.
Compatible with all 11 speed chains
Note that you likely need a longer chain than you currently have your bike. Chain length is critical with the 49T and must be set according to the instructions on the GC tech page.
Chain wear should be less than .5 when installing a new GC or chainring.
Caution: always check full suspension travel with the chain on the GC 49. Bleed air from rear shock and fully compress the rear suspension to check. Derailleur cage must not bottom out in forward rotation.
Wolf Cage (for use with Shimano derailleurs)
Wolf Tooth’s patented Drop-Stop® chainrings
This is a kit including the WolfCage, GC49 and 18t cog. Remove the 17 and 19t cogs and replace them with the 18t.
GC49 installation instructions on the GC tech page.
WolfCage installation instructions on the WolfCage Tech and Install page.
These are specifically designed for use with Shimano cassettes. The clocking, or rotational orientation, between SRAM and Shimano cassettes is much different so optimal shifting cannot be achieved unless the design is optimized for each separately.
Design and manufactured in Minneapolis, MN USA
Material 7075-T6 (GC) and 6061-T6 (cage)
WolfCages are black. Colors are coming soon!
GC49 are available in Black, Red, Blue, Gold, Silver
Weight - 110g -GC49, 22g - 18t cog, 22g - WolfCage
For more details please click the link below
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