Sunrace CSMZ903 12sp Cassette 11-51t - Black Disc Brake Adaptor 4" compound Addix Speed bead

4" compound Addix Speed bead folding type tubeless color tanwall weight 760g

Z: ZeroStack deep

Grip System: No Wax / Skin

The colors are more about how much bite you need than temperature

Detachable rubber parts on the side of the glasses lets you block out unwanted sunlight

Sunrace CSMZ903 12sp Cassette 11-51t - Black Disc Brake Adaptor 4" compound Addix Speed beadLightweight wide range mountain cassette compatible with HG 8 11sp freehub bodies Fluid Drive Plus shift enhancing design 7075 aluminum largest 3 cogs, all other cogs are steel 7 cogs on 2 aluminum spiders, aluminum lockring and spacers Compatible with Shimano 12 speed drivetrain TECH SPECS model CSMZ903 freehub type HG speed 12 range 11 51 cogs 11,13,15,17,19,21,24,28,33,39,45,51 color black weight 517g