S.H.I.S. Designation: EC44/28.6 top, EC49/40 bottom Head tube length: long 115-140 mm Adjust the geometry of your bike by changing the head tube angle 2 degrees with the GeoShift 2 Degree Performance Angle Headset. It allows you to change the head tube angle by minus 2 degrees to ensure loose geometry for added stability on fast descents, or by plus 2 degrees by using the opposite orientation of the headset to ensure steeper geometry for faster steering with maximum front wheel traction. The GeoShift Performance Angle Headset features a design where the bearings sit at an angle aligned with the handlebar tube. This is comparable to angle headsets that sit flat, adding unnecessary friction and strain to the bearings. The angled bearing design also prevents the creaking common with angle headsets that feature a spherical design. Wolf Tooth Headsets are manufactured in the USA from lightweight, strong, durable 6061 aluminum. Our performance headset is built to include an enduro black oxide coated chrome steel bearing, a 1 year warranty and three levels of superior custom sealing to protect the bearings from the elements and extend the life of the headset. › See more product details; Product description Adjust the geometry of your bike by changing the head tube angle by 2º with the GeoShift 2º Performance Angle Headset. It allows you to change the head tube angle by -2º to ensure loose geometry for added stability on fast descents, or +2º by the opposite orientation of the headset for steeper geometry for faster steering with maximum front wheel traction. The animation shows the standard head tube angle (wheel closer to the down tube) compared to the slacker head tube angle after installing the GeoShift Performance Angle Headset (wheel further from down tube). The GeoShift Performance Angle Headset features a design where the bearings sit at an angle aligned with the steering tube. This is comparable to angle headsets that sit flat, adding unnecessary friction and strain to the bearings. This angled bearing design also prevents the creaking common with angle headsets that feature a spherical design. Wolf Tooth headsets are manufactured in the USA from lightweight, strong, durable 6061 aluminum. Our performance headset is built to include an enduro black oxide coated chrome steel bearing, a one-year warranty, and three levels of superior custom sealing to protect bearings from the elements and extend the life of the headset. Note: The EC44 Upper/EC44 Lower is the new design of the ZS44 Upper/EC44 Lower and can be used in its place. This new design was implemented because the limitations of a 44mm head tube and bottom require the upper bearing to be accommodated above the head tube (unlike the interior of the head tube as in the top ZS44 design) for optimal performance. Compatible with frames that use EC and ZS headset cups. Not compatible with frames that use IS (Integrated Style) headsets. (The headset bearing sits directly in the head tube without aluminum shell on frames that use IS headsets). Upper headsets come with a star nut that can only be used on forks with steel or aluminum steering tubes. For forks with carbon handlebar tubes, you will need a compression plug (sold separately; never use a star nut on a carbon steering tube). Consult compatibility guide and measurement guide to determine which headset fits your bike. Top Mount Features: Bottom Mounting: Ultra-light shaft cap with integrated spacer as well as an aluminum screw and a star nut O-ring seal prevents water from entering around the steering tube. Specially shaped upper lip seal provides extra protection for the upper bearing. Optional washers if required. Specially shaped double lip seal on crown race to protect the lower bearing in the harshest weather and trail conditions. Service and additional parts available. Recommendations The Wolf Tooth Crown Race Adapter will help. Avoid damage to the crown race seals. Use the included installation drifts/guides when pressing into headset cups. Related Products Wolf Tooth Headsets Precision Headset Spacers Wolf Tooth Crown Race Installation Adapter Tech Specs Weight: ZS44/28.6 Upper, ZS56/40 Bottom • 92g | ZS44/28.6 Upper, ZS44/28.6 Upper, EC49/40 Bottom • 107g Material: 6061 Aluminum includes: installation drifts/. Guides, upper and lower shells, bearings, crown races, star nut, three washers, shank cap with 5mm integrated spacer and bolt (listed weight does not include star nut, washers or shaft cap). Torque specification: 2-3Nm with light grease on thread. Made in the USA. [Snippet Name=\; Product description Adjust the geometry of your bike by changing the head tube angle by 2º with the GeoShift 2º Performance Angle Headset. It allows you to change the head tube angle by -2º to ensure loose geometry for added stability on fast descents, or +2º by the opposite orientation of the headset for steeper geometry for faster steering with maximum front wheel traction. The animation shows the standard head tube angle (wheel closer to the down tube) compared to the slacker head tube angle after installing the GeoShift Performance Angle Headset (wheel further from down tube). The GeoShift Performance Angle Headset features a design where the bearings sit at an angle aligned with the steering tube. This is comparable to angle headsets that sit flat, adding unnecessary friction and strain to the bearings. This angled bearing design also prevents the creaking common with angle headsets that feature a spherical design. Wolf Tooth headsets are manufactured in the USA from lightweight, strong, durable 6061 aluminum. Our performance headset is built to include an enduro black oxide coated chrome steel bearing, a one-year warranty, and three levels of superior custom sealing to protect bearings from the elements and extend the life of the headset. Note: The EC44 Upper/EC44 Lower is the new design of the ZS44 Upper/EC44 Lower and can be used in its place. This new design was implemented because the limitations of a 44mm head tube and bottom require the upper bearing to be accommodated above the head tube (unlike the interior of the head tube as in the top ZS44 design) for optimal performance. Compatible with frames that use EC and ZS headset cups. Not compatible with frames that use IS (Integrated Style) headsets. (The headset bearing sits directly in the head tube without aluminum shell on frames that use IS headsets). Upper headsets come with a star nut that can only be used on forks with steel or aluminum steering tubes. For forks with carbon handlebar tubes, you will need a compression plug (sold separately; never use a star nut on a carbon steering tube). Consult compatibility guide and measurement guide to determine which headset fits your bike. Top Mount Features: Bottom Mounting: Ultra-light shaft cap with integrated spacer as well as an aluminum screw and a star nut O-ring seal prevents water from entering around the steering tube. Specially shaped upper lip seal provides extra protection for the upper bearing. Optional washers if required. Specially shaped double lip seal on crown race to protect the lower bearing in the harshest weather and trail conditions. Service and additional parts available. Recommendations The Wolf Tooth Crown Race Adapter will help. Avoid damage to the crown race seals. Use the included installation drifts/guides when pressing into headset cups. Related Products Wolf Tooth Headsets Precision Headset Spacers Wolf Tooth Crown Race Installation Adapter Tech Specs Weight: ZS44/28.6 Upper, ZS56/40 Bottom • 92g | ZS44/28.6 Upper, ZS44/28.6 Upper, EC49/40 Bottom • 107g Material: 6061 Aluminum includes: installation drifts/. Guides, upper and lower shells, bearings, crown races, star nut, three washers, shank cap with 5mm integrated spacer and bolt (listed weight does not include star nut, washers or shaft cap). Torque specification: 2-3Nm with light grease on thread. Made in the USA. [Snippet Name=\; Adjust the geometry of your bike by changing the head tube angle by 2º with the GeoShift 2º Performance Angle Headset. It allows you to change the head tube angle by -2º to ensure loose geometry for added stability on fast descents, or +2º by the opposite orientation of the headset for steeper geometry for faster steering with maximum front wheel traction. The animation shows the standard head tube angle (wheel closer to the down tube) compared to the slacker head tube angle after installing the GeoShift Performance Angle Headset (wheel further from down tube). The GeoShift Performance Angle Headset features a design where the bearings sit at an angle aligned with the steering tube. This is comparable to angle headsets that sit flat, adding unnecessary friction and strain to the bearings. This angled bearing design also prevents the creaking common with angle headsets that feature a spherical design. Wolf Tooth headsets are manufactured in the USA from lightweight, strong, durable 6061 aluminum. Our performance headset is built to include an enduro black oxide coated chrome steel bearing, a one-year warranty, and three levels of superior custom sealing to protect bearings from the elements and extend the life of the headset. Note: The EC44 Upper/EC44 Lower is the new design of the ZS44 Upper/EC44 Lower and can be used in its place. This new design was implemented because the limitations of a 44mm head tube and bottom require the upper bearing to be accommodated above the head tube (unlike the interior of the head tube as in the top ZS44 design) for optimal performance. Compatible with frames that use EC and ZS headset cups. Not compatible with frames that use IS (Integrated Style) headsets. (The headset bearing sits directly in the head tube without aluminum shell on frames that use IS headsets). Upper headsets come with a star nut that can only be used on forks with steel or aluminum steering tubes. For forks with carbon handlebar tubes, you will need a compression plug (sold separately; never use a star nut on a carbon steering tube). Consult compatibility guide and measurement guide to determine which headset fits your bike. Top Mount Features: Bottom Mounting: Ultra-light shaft cap with integrated spacer as well as an aluminum screw and a star nut O-ring seal prevents water from entering around the steering tube. Specially shaped upper lip seal provides extra protection for the upper bearing. Optional washers if required. Specially shaped double lip seal on crown race to protect the lower bearing in the harshest weather and trail conditions. Service and additional parts available. Recommendations The Wolf Tooth Crown Race Adapter will help. Avoid damage to the crown race seals. Use the included installation drifts/guides when pressing into headset cups. Related Products Wolf Tooth Headsets Precision Headset Spacers Wolf Tooth Crown Race Installation Adapter Tech Specs Weight: ZS44/28.6 Upper, ZS56/40 Bottom • 92g | ZS44/28.6 Upper, ZS44/28.6 Upper, EC49/40 Bottom • 107g Material: 6061 Aluminum includes: installation drifts/. Guides, upper and lower shells, bearings, crown races, star nut, three washers, shank cap with 5mm integrated spacer and bolt (listed weight does not include star nut, washers or shaft cap). Torque specification: 2-3Nm with light grease on thread. Made in the USA. [Snippet Name=\
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