NEW SRAM X0 Eagle T-Type XS-1295 Cassette - 12-Speed, 10-52t, For XD Driver, Black groupset-speeds-12 Surly track cogs are threaded 210000054197

NEW SRAM X0 Eagle T Type XS 1295 Cassette 12 Speed, 10 52t, For XD Driver, Black groupset speeds 12 Surly track cogs are threaded 210000054197 Surly track cogs are threaded the same as a BMX freewheel (1 Micro Spline technology delivers lightweight aluminum freehub body to reduce weight and utilize a 10 tooth top gear the 52 tooth cog steps down with improved gear progression with 44 and 38 tooth cogs in the low end (compared to the Eagle drivetrain 10 52 tooth cassette) The X0 Eagle T Type 12 Speed 12 Speed cassette is a major reason why Eagle Transmission offers one of the best ever inboard and outboard shifting performance under load