In Stock

Niner WFO e9 3-Star SRAM SX Eagle E-Bike

6,962.12 6,862.64


Durable, trail-ready parts round out the USA-spec WFO e9 parts kit. With Rockshox suspension, SRAM drive train and SRAM brakes, it’s ready for heavy duty and trouble-free trail rides.

SKU: Niner WFO e9 3-Star Category: Tags: ,


All in on aluminum

As on the RIP e9, the WFO e9 chassis is welded from 6061 aluminum frame mated to a one-piece motor mount. The intricately shaped motor mount cleverly houses upper and lower pivots, plus the lower shock mount, for a rock-solid foundation. Forged frame end links and dropouts bring added strength and the pivots ride on Enduro Max Black Oxide bearings for smooth, long life performance.

Torque sensitive, zero-lag power delivery comes courtesy of Bosch and the Gen 4 Performance CX drive system. Powered by a 625wh battery, this system delivers miles of reliable, predictable pedal assist in the most challenging conditions.

Supple yet stable coil shock suspension

Offering up 180mm of coil-sprung travel, the Horst link 4-bar suspension system offers ideal behavior in a pedal assisted application. Every parameter of this proven design was adjusted to achieve Niner’s signature, supple yet stable suspension behavior. The leverage ratio, shock length, stroke, orientation and mounting location are tuned to Niner’s specification. And because the rocker arm rotates the upper shock bushing far more than the lower, we added bearings to the upper arm and oriented the trunnion mount shock with the damper body on top.

Best of both wheel sizes

Rounding out our WFO e9 is a “mullet” style, 29er front/27.5+ rear wheel setup. The smaller rear wheel keeps the chainstays short for snappy trail manners and offers up massive traction.

In short, you’re free. Free to pedal instead of shuttle. Free to roam, explore, and ride whatever you want, whenever you want, with nothing holding you back other than your imagination.


ProductNiner WFO e9 3-Star SRAM SX Eagle E-Bike
Model Year2021
Riding TypeFreeride / Bike Park
Sizes and Geometry
SM (high, low), MD (high, low), LG (high, low) View Geometry
Wheel Size29″, 27.5″ (650b), Other (Mullet)
E-Bike ClassClass 1: Pedal Assist (Pedelecs)
MotorBosch Gen4 Performance Line CX
BatteryBosch PowerTube, integrated
Battery Capacity625 Wh
Display/RemoteBosch Purion
ModesTurbo, Sport/eMTB, Tour, Eco, Walk Assist
Max Speed with Assist20 mph (32 km/h)
Frame MaterialAluminum
Frame Material Details6061-T6 alloy, forged yokes, 1-piece alloy motor housing, molded chainstay protection
Rear Travel180mm
Rear ShockFOX VAN Coil, low-speed compression adjust, trunnion mount, 205mm x 65mm Spring rates: 400lbs (SM), 450lbs (MD), 500lbs (LG)
ForkRockShox ZEB R
Fork Travel180mm
Head Tube DiameterTapered, 1.125″ top, 1.5″ bottom
HeadsetNiner Internal, ZS44/28.6 upper, ZS56/40 lower
HandlebarRace Face Aeffect R, 780mm width, 20mm rise, 35mm clamp diameter
StemRace Face Aeffect R, 35mm bar clamp
GripsNiner Grrrips, flanged, nylon lock-on
BrakesSRAM Guide RE, 4-piston, SRAM CenterLine 200mm CENTER LOCK rotors
Brake LeversSRAM Guide RE
ShiftersSRAM SX Eagle, 12-speed
Front DerailleurNone
Rear DerailleurSRAM SX Eagle, 12-speed
ChainguideUpper slider
CranksPraxis/Bosch G4, ISIS, 165mm length
ChainringsSRAM Eagle, direct mount, 36 tooth
ChainSRAM SX Eagle, 12-speed
CassetteSRAM SX Eagle PG-1210, 12-speed, 11-50 tooth
RimsStan’s NoTubes Flow D
HubsFormula, CL-811 15x110mm Boost front, ECT-148S 12x148mm Boost rear with HG driver
TiresFront: Schwalbe Eddy Current, Evo, Super Trail, TLE, Addix Soft, 29″ x 2.4” Rear: Schwalbe Eddy Current, Evo, Super Gravity, TLE, Addix Soft, 27.5″ x 2.6”
SaddleNiner Custom TR, CrMo rails
SeatpostKS Lev Si dropper Drop: 100mm (SM), 125mm (MD), 150mm (LG)
Seatpost Diameter30.9mm
Seatpost ClampSingle bolt, 34.9mm
Rear Dropout / Hub Dimensions12x148mm Boost
Max. Tire Size27.5″ x 2.8″
Bottle Cage MountsOne inside front triangle
ColorsMagnetic Grey/Orange Camo
WarrantyLifetime frame
Weight55 lb 8.9 oz (25,200 g)
Miscellaneous• Horst-link 4-bar rear suspension design • Mixed (“Mullet”) wheels: 29″ front, 27.5″ rear • Internal cable routing


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