ZRACE ALPHA EX 12-Speed HG Cassette Engineering and Weight Reduction
Extremely lightweight design achieved through CNC fully hollow construction removes material from non-structural zones, saving meaningful grams per sprocket without sacrificing rigidity or shift performance. Precision-cut HG-splined sprockets integrate perfectly with existing Shimano and SRAM 12-speed drivetrains, eliminating compatibility questions during your upgrade. Road racing and gravel climbing demand precise power delivery and responsive shifts—this cassette delivers both through optimized tooth geometry and tightly controlled tolerances. The hollow architecture reduces inertial load during acceleration, a measurable advantage in breakaway situations and steep climbing transitions. CNC finishing ensures perfect alignment within your freehub body, preventing the axial play that creates unwanted noise and shift delay.
L***y –
Beautiful, I loved the color, need to try it.
AliExpress Shopper –
It looks great on my bike and the weight is reduced significantly; we just need to see how long the cassette lasts.
AliExpress Shopper –
All good. The ltwoo grt 12s transmission works well. No noticeable changes. The only question is durability. Aesthetics, lightness, and functionality.
a***r –
Shifting a breeze, i like the cassettes works with sram and shimano. Not tried campy, coming up.