Consult measurement guide determine which headset will fit your bike. Optional shim washers if needed Works Components Wolf Tooth Performance ZS Headsets - Zero Stack - Wolf Tooth Components Wolf Tooth GeoShift Angle Headset 5mm top cover = 6mm total stack Wolf Tooth headsets are machined in the USA with lightweight, strong, durable aircraft-grade 6061 aluminum. Lower assembly features: Custom-molded dual-lip seal on the crown race to protect lower bearing in the toughest weather and trail conditions Head Tube Length: Long 115-140 mm It allows you to change the head tube angle by -1º to make for a slacker geometry for added stability on fast descents, or by 1º by using the opposite... Wolf Tooth 2 Degree Angle Headset Wolf Tooth GeoShift Headset - 2-Degree Angle Adjustment (EC44/ZS56) Geoshift 2o Headset Tech Specs Weight: ZS44/28., 6 Upper, ZS56/40 Lower • 92g | ZS44/28., 6 Upper, EC44/40 Lower • 105g | ZS44/28., 6 Upper, EC49/40 Lower • 107gMaterial: 6061 aluminumIncludes: Upper and lower cups, bearings, crown race, star nut, three shims, stem cap with 5mm integrated spacer and bolt (weight listed does not include star nut, shims, or stem cap)Made in the USA, S., H., I., S., Designation: ZS44/28., 6 Upper, EC49/40 Lower This compares to angle headsets that have bearings that sit flat, which adds unneeded friction and stress on the bearings. Wolf Tooth 2 Degree GeoShift Performance Angle Headset The GeoShift Performance Angle Headset features a design in which the bearings sit at an angle that aligns with the steerer tube. For forks with carbon steerer tubes you will need a compression plug (sold separately; never use a star nut on a carbon steerer tube) Adjust the geometry of your bike by changing the head tube angle by 1 degree with the GeoShift Performance Angle Headset.
