Headset Bottom Cup

New range of high quality headsets manufactured in the UK by Superstar's in house manufacturing facility in Lincoln. Manufactured to the highest tolerances these headsets are a perfect fit and forget multi-sealed replacement for the cheap and nasty product normally fitted to complete bikes to keep manufacturing costs down.

Choose from our comprehensive range of fitments and colours to customise your unique headset. Fully sealed cartridge bearings and custom made NBR wiper seals keep out the dirt and water, giving you a long lifespan in the worst conditions. An innovative retained compression ring and aluminium split crown race makes assembly easy.

Precision CNC machined from 6082 T6 heat treated aluminium in the UK with diamond tipped tools for a lush shine and super tight tolerances. Pick and mix to suit your frame. 

• Top Set -  includes Top cup, top cover, compression ring, sealed bearing, topcap, starfangled nut and stainless steel bolt.
• Bottom Set -  include Bottom cup, sealed bearing and split crownrace

Spares available  - Topcap Kit, Bearings and Seals

Handy Information for SHIS headset size identification CLICK HERE

Stack height info:

• EC34 - 14mm
• ZS44 - 6mm
• ZS49 - 6mm
  
• ZS56 - 6mm
  
• EC44 - 14mm
• EC49 - 14mm

From headtube face to bottom of crown race. Note variation due to tolerance stack is possible.

Insertion Depth:

• EC34 - 10mm Deep - 2mm 15degree taper lead in
• ZS44 - 8mm Deep - 2.5mm 45degree taper lead in
• ZS49 - 9mm Deep - 3mm 45degree taper lead in
• ZS56 - 9mm Deep - 3mm 45degree taper lead in
• EC44 - 10mm Deep - 2mm 15degree taper lead in
  
• EC49 - 10mm Deep - 2mm 15degree taper lead in