One piece, bolt & topcap with Allen (hex) 5mm socket. Will fit to every standard starnut. Not suitable for "expanding" star nuts with the steel coil spring (used in carbon steerer). However, it is compatible with ENVE Compression Plug (recommended for carbon steerers).
Material: CNC Machined 7075 Aluminium
Key: 5mm Allen
Designed in UK, made in Poland
Mfr Claimed Weight