Headset will allow you to alter your top-tube length by +/- 7mm.
Upper cup insertion depth: 13.5mm
Lower cup insertion depth: 13.5mm
Upper cup Stack height: 11mm - Total upper stack height including bearing cover: 15mm
Lower cup Stack height: 11mm
Upper Bearing: 41mm OD, 45 x 45 Degree AC sealed bearing
Lower Bearing: 52mm OD, 45 x 45 Degree AC sealed bearing
Headset comes complete with top-cap (star-nut included), bearings and crown race - all parts required for fitment
NOTE: This type of headset is only suitable for frames with headtubes in good condition measuring 49.59mm minimum - please check before installation.
Proudly machined in the UK, anodised locally in black from 6082 T6 aluminium.
Split type 7075-T6 aluminium crown race for simple, tool free installation
Bearing Grade |
ACB Sealed |
Headset Type |
External Threadless |
SHIS Upper |
EC49/38.1 |
Steerer Tube |
1-1/8 |
Primary Color |
Black |
SHIS Lower |
EC49/40 |
Headset Reach Adjustment |
7mm |
Headset Weight |
140g |
Material |
7075-T6 Aluminum |
Headset Position |
Complete |
Misc |
7mm |
S.H.I.S. |
EC49/38.1 | EC49/40 |
Stack Height |
15 |
Lower Cup |
52mm |
Upper Cup |
41mm |