RaceFace Vault J-Bend 424 Rear Hub - 12 x 148mm 6-Bolt XD Black 32H ModelNumber=K5334 Both lights can connect to

Both lights can connect to and be controlled by a compatible Lezyne GPS computer

Largest Cog 34 Fits Model Ultegra 8150 Fits Brand Shimano Drivetrain Speeds 12 Defined Color Black

Fillet brazed

Durable rattle-free bracket offers tool-free mounting

RaceFace Vault J-Bend 424 Rear Hub - 12 x 148mm 6-Bolt XD Black 32H ModelNumber=K5334 Both lights can connect toRaceFace Vault J Bend 424 Rear Hub 12 x 148mm 6 Bolt XD Black 32H. Vault hubs feature an oversized hub shell for increased torsional and lateral stiffness and proven 6902 bearings were selected due to their large ball diameter and durability. A 60 tooth drive ring alternately engages six double tooth pawls giving you 3degree engagement for near instant power transfer. Wide bearing placement was designed to decrease load on the bearings improving