Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
2018 Niner JET 9 RDO 4-Star Plus
Value Guide market data · 2018 Niner JET 9 RDO 4-Star Plus
12-month trend
16%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2018 Niner JET 9 RDO 4-Star Plus
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All JET model years
2018 JET 9 RDO 4-Star Plus lineup
Overview
About this bike
2018 Niner JET 9 RDO 4-Star Plus value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Rear Shock
- Fox Float DPS Factory EvoL 3 Position, Kashima Coat
- Fork
- Fox 34 Float Factory Fit4 EvoL, 130mm, Kashima Coat
- Frame
- JET 9 RDO carbon, CVA suspension, 120mm-travel
Drivetrain
- Groupset
- 2018 Niner JET 9 RDO 4-Star Plus
- Crankset
- SRAM Descendant 7K Eagle
- Bottom Bracket
- SRAM GXP
- Chain
- SRAM X01 Eagle 12sp
- Rear Derailleur
- SRAM X01 Eagle, 12-speed
- Cassette/Rear Cogs
- SRAM Eagle XG 1295, 10-50t
- Chainrings
- 32T
- Shifters
- SRAM X01 Eagle 12sp
Brakes
- Brake Levers
- SRAM Guide RSC
- Brakes
- SRAM Guide RSC, 180/160mm G2CS rotors
Cockpit
- Saddle
- Niner Custom TR with CrN-Ti rails
- Headset
- Niner Internal ZS (44/28.6 ZS56/50)
- Stem
- Race Face Turbine Basic 50mm, 35mm Clamp
- Handlebars
- Race Face SixC, 820mm wide, 20mm rise, 35mm
- Seat Post
- KS LEV Integra
- Tape/Grips
- Niner Grips L/O Nylon Flanged
Wheels & Tires
- Tires
- Front: Maxxis Rekon+ DC/EXO/TR 27.5 x 2.8<br>Rear: Maxxis Rekon+ DC/EXO/TR 27.5 x 2.8
- Axles
- Front: 110x15mm<br>148x12mm
Accessories
- Rims/Wheels
- Niner alloy 27.5+
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
Suspension service
Confirm fork lowers and rear shock service intervals; ask for the most recent service receipts.
Inspection
Frame pivots & bearings
Cycle the suspension off the bike to feel for play, grit, or noise in pivot bearings.