Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
2021 Niner WFO e9 3-Star
Value Guide market data · 2021 Niner WFO e9 3-Star
12-month trend
13%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 Niner WFO e9 3-Star
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All WFO model years
2021 WFO e9 3-Star lineup
Overview
About this bike
2021 Niner WFO e9 3-Star value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- Rockshox Yari RC 180mm
- Frame
- Niner WFO E9 180mm Travel
- Rear Shock
- Rockshox Super Deluxe Coil Select R 205x65mm Trunnion (S-350lb, M-400lb, L-450lb)
Drivetrain
- Groupset
- SRAM Eagle
- Cassette
- SRAM PG1210 Eagle 11-50T
- Chain
- SRAM SX Eagle 12sp
- Crankset
- Praxis Bosch G4 ISIS 165mm with SRAM DM Eagle Ring 36T
- Rear Derailleur
- SRAM SX Eagle 12sp
- Shifters
- SRAM SX Eagle 12sp
Brakes
- Brake Levers
- SRAM Guide RE
- Brakes
- SRAM Guide RE
- Rotors
- SRAM Centerline 200mm Center Lock
Cockpit
- Handlebar
- Race Face Aeffect R 780mm Wide, 20mm Rise, 35mm Clamp
- Headset
- Niner Internal ZS SHIS Description ZS44/28.6 | ZS56/40
- Saddle
- Niner Custom TR With Cr-Mo Rails, Printed Niner Graphic
- Seatpost
- KS LEV Si (S-100mm, MD-125mm, LG-150mm)
- Stem
- Race Face Aeffect R, 35mm Clamp
- Grips
- Niner Grrrips L/O Nylon Flanged
Wheels & Tires
- Front Tire
- Front: Maxxis Minion DHF 3C/EXO/TR 29 x 2.5" WT, Rear: Maxxis DHF 2C/EXO/TR 27.5 x 2.8" WT
- Wheel Set
- Front: Stans NoTubes Flow D 29, Formula CL-811 Hub 110x15mm, Rear: Stans NoTubes Flow D 27.5, Formula ECT-148S Hub 148x12mm
Pedals
- Pedals
- Sold separately
E-System
- Battery
- Bosch Powertube 625Wh
- Controller/Display
- Bosch Purion
- Motor
- Bosch Gen4 Performance Line CX 20mph
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Battery health
Request battery cycle count and any diagnostic report; older packs lose range and capacity.
Inspection
Motor warranty
Verify motor warranty status and any firmware updates from the manufacturer dealer.