Description
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.
Specifications
| Product | Niner WFO e9 3-Star SRAM SX Eagle E-Bike |
|---|---|
| Model Year | 2021 |
| Riding Type | Freeride / Bike Park |
| Rider | Unisex |
| Sizes and Geometry | SM (high, low), MD (high, low), LG (high, low) View Geometry |
| Wheel Size | 29″, 27.5″ (650b), Other (Mullet) |
| E-Bike Class | Class 1: Pedal Assist (Pedelecs) |
| Motor | Bosch Gen4 Performance Line CX |
| Battery | Bosch PowerTube, integrated |
| Battery Capacity | 625 Wh |
| Display/Remote | Bosch Purion |
| Modes | Turbo, Sport/eMTB, Tour, Eco, Walk Assist |
| Max Speed with Assist | 20 mph (32 km/h) |
| Frame Material | Aluminum |
| Frame Material Details | 6061-T6 alloy, forged yokes, 1-piece alloy motor housing, molded chainstay protection |
| Rear Travel | 180mm |
| Rear Shock | FOX VAN Coil, low-speed compression adjust, trunnion mount, 205mm x 65mm Spring rates: 400lbs (SM), 450lbs (MD), 500lbs (LG) |
| Fork | RockShox ZEB R |
| Fork Travel | 180mm |
| Head Tube Diameter | Tapered, 1.125″ top, 1.5″ bottom |
| Headset | Niner Internal, ZS44/28.6 upper, ZS56/40 lower |
| Handlebar | Race Face Aeffect R, 780mm width, 20mm rise, 35mm clamp diameter |
| Stem | Race Face Aeffect R, 35mm bar clamp |
| Grips | Niner Grrrips, flanged, nylon lock-on |
| Brakes | SRAM Guide RE, 4-piston, SRAM CenterLine 200mm CENTER LOCK rotors |
| Brake Levers | SRAM Guide RE |
| Drivetrain | 1x |
| Shifters | SRAM SX Eagle, 12-speed |
| Front Derailleur | None |
| Rear Derailleur | SRAM SX Eagle, 12-speed |
| Chainguide | Upper slider |
| Cranks | Praxis/Bosch G4, ISIS, 165mm length |
| Chainrings | SRAM Eagle, direct mount, 36 tooth |
| Pedals | None |
| Chain | SRAM SX Eagle, 12-speed |
| Cassette | SRAM SX Eagle PG-1210, 12-speed, 11-50 tooth |
| Rims | Stan’s NoTubes Flow D |
| Hubs | Formula, CL-811 15x110mm Boost front, ECT-148S 12x148mm Boost rear with HG driver |
| Spokes | |
| Tires | Front: 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” |
| Saddle | Niner Custom TR, CrMo rails |
| Seatpost | KS Lev Si dropper Drop: 100mm (SM), 125mm (MD), 150mm (LG) |
| Seatpost Diameter | 30.9mm |
| Seatpost Clamp | Single bolt, 34.9mm |
| Rear Dropout / Hub Dimensions | 12x148mm Boost |
| Max. Tire Size | 27.5″ x 2.8″ |
| Bottle Cage Mounts | One inside front triangle |
| Colors | Magnetic Grey/Orange Camo |
| Warranty | Lifetime frame |
| Weight | 55 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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