Origin8 Revolvr HTII Outboard / External Euro Bottom Bracket - Black 2.0 It raises the center of

It raises the center of handlebar

This part allows you to use a derailleur on a BMX-style dropout

The Onyx Racing Products SS Cog is a stainless steel cog for use with the Onyx BMX hub and other Shimano-compatible hubs

Bottom Bracket Shell: 68/73mm

Origin8 Revolvr HTII Outboard / External Euro Bottom Bracket - Black 2.0 It raises the center ofThe Origin8 Revolvr HTII Outboard Bottom Bracket has forged and CNC machined AL6061 thread in cups for a superior fit and noise free operation. It has low friction dual seals to protect the bearings from harmful contaminants, and the sealed premium bearings are both serviceable and replaceable. This bottom bracket is designed for frames with Euro bottom bracket shells with 68mm or 73mm widths. It is compatible with cranks such as the Shimano DXR and