Open-Box Item: This product is sold as an open-box item. It may have been removed from a bicycle prior to use. Original packaging may be missing or incomplete. Minor cosmetic blemishes may be present. The product is in full functioning order.

The Black Inc HB04 is a one-piece integrated carbon barstem that combines handlebar and stem into a single unit. Introduced alongside the Factor MONZA, it features a shorter reach and semi-aero bar profile to complement modern Shimano and SRAM hood shapes. Moulded cable entry ports route cables internally, keeping lines clean and improving aerodynamics over traditional round bars.

Built from high modulus carbon fibre with strength-to-weight ratio as a guiding priority, the HB04 is slightly narrower on the tops than Black Inc's Aero Integrate Barstem, with shaping that targets hand position comfort alongside the enhanced aero profile. A standard round cap ensures broad bike compatibility, making this a practical cockpit upgrade across a wide range of road platforms.

Quick Facts

Feature	Specification
Bar Width	36cm
Stem Length	100mm
Stem Rise	-6°
Material	High modulus carbon fibre