Niner RLT e9 RDO 4-Star - 2021
A perfect blend of performance, versatility, and reliability, the Niner RLT e9 RDO 4-Star is built for gravel riding, adventure, and utility. With a gravel-optimized Shimano GRX drivetrain and powerful Bosch Performance Line CX motor, this e-gravel bike is ready for anything—from dirt roads to city streets.

Key Features

• Shimano GRX Brakes & Drivetrain: Featuring flat-mount GRX brakes with custom Niner adapters for compatibility, plus Boost-spaced GRX drivetrain for integration with mountain bike components.
• Bosch Performance Line CX Motor: Propels up to 28 mph (25 kph in the EU) with a 500Wh battery, offering smooth, reliable pedal assist over long distances.
• Versatile and Durable Design: This carbon frame passes ISO mountain bike standards, thanks to Niner’s rugged RDO construction and a robust carbon backbone bonded to an alloy motor mount.
• Flexible Setup Options: Designed for flat bar compatibility, with Boost hub and crankset spacing for MTB part interchangeability, plus compatibility with a FOX AX suspension fork and dropper seatpost routing.
• Adventure-Ready Build: Equipped with custom Niner racks, clearance for 50c tires, and fender mounts for ultimate adaptability in any environment.

Specifications

• Frame: RLT e9 RDO Carbon
• Fork: Niner RDO Carbon
• Headset: Niner Integrated IS42/28.6 | IS52/40
• Brakes: Shimano GRX 400, RT-EM81 180mm CL rotors
• Shifters: Shimano GRX 600
• Crank: Praxis Bosch G4 ISIS 42T
• Motor: Bosch Gen4 Performance Line CX, 28mph
• Battery: Bosch Powertube 500Wh
• Display: Bosch Purion
• Cassette: Shimano SLX M7000
• Rear Derailleur: Shimano GRX 800
• Chain: Shimano CN-E8000
• Wheelset: Stan’s NoTUBES Arch D
• Tires: Schwalbe G-One Speed Performance 700x50c
• Handlebar: Easton EA50 AX
• Stem: Niner Alloy
• Seatpost: Niner Carbon
• Saddle: Niner Custom with Cr-Mo rails

Available Sizes

• 50cm, 53cm, 56cm, 59cm

Color Options

• Green

Explore New Terrain

With the Niner RLT e9 RDO 4-Star, you’re not just getting an e-gravel bike; you’re gaining a powerful tool for adventure. Whether tackling gravel paths, social trails, or city commutes, this bike is engineered for riders who want to explore with speed, durability, and unparalleled versatility.