Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
2018 Niner SIR 9 1-Star
Previous used estimate
$628 - $646
Actual value depends on condition, size, and local demand.
Value Guide market data · 2018 Niner SIR 9 1-Star
12-month projected trend
7%
Direction and magnitude, not judgment
vs. category average
3%
Drops faster than category avg
Price over time - 2018 Niner SIR 9 1-Star
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All SIR model years
Overview
About this bike
Take charge of your ride with this Reynolds 853 steel frame designed around Niner's [R]evolution trail geometry. Ride it hard. Ride it fast. After all, it's made from a truly time-tested material that's been air hardened and heat treated. The efficient, yet compliant ride quality of the SIR 9 hearkens back to a simpler time. A SRAM NX 1x11 drivetrain and Level brakes keep you poised for action, and a RockShox Judy 120mm fork takes the bite out of rough terrain so you can rally till your heart's content. Niner knew you'd also enjoy loading this steel steed for a weekend of bikepacking adventure and added 18 mounting points to accommodate those needs. However you choose to use the SIR 9, its simple design will inspire a renewed desire for exploration and reward you with a comfortable ride only a high-grade steel hardtail can provide.
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- RockShox Judy Gold RL SOLO AIR, 120mm
- Component Size
- Small, Medium, Large, X-Large
- Component Stem
- Race Face Aeffect R 50mm, 35mm Clamp
- Product Family
- SIR
- Component Axles
- Front: 110 x 15mm Rear: 148 x 12mm
- Component Chain
- SRAM PC1110 11SP
- Component Color
- Slate Blue/Orange
- Component Frame
- SIR 9, Reynolds 853 steel
- Component Brakes
- SRAM Level
- Component Saddle
- Niner Custom TR with Cr-Mo Rails, Printed Niner Graphic
- Component Headset
- Niner Internal ZS SHIS ZS44/28.6|ZS56/40
- Component Cassette
- SRAM PG 1130 11-42T
- Component Crankset
- SRAM NX1 GXP
- Component Shifters
- SRAM NX1 11SP
- Component Handlebar
- Race Face Aeffect R 780mm Wide, 20mm Rise, 35mm Clamp
- Component Seat Post
- Niner Alloy Seat Post, 370mm, Niner Graphic
- Component Chainrings
- 32T
- Component Front Tire
- Front: Maxxis Ardent F60 SC 29 x 2.4 Rear: Maxxis Ardent F60 SC 29 x 2.25
- Component Tape Grips
- Niner Grips L/O Nylon Flanged
- Component Brake Levers
- SRAM Level
- Component Bottom Bracket
- SRAM (PF30)
- Component Rear Derailleur
- SRAM NX1 11SP
- Crankset
- SRAM NX1 GXP
- Bottom Bracket
- SRAM (PF30)
- Chain
- SRAM PC1110 11SP
- Saddle
- Niner Custom TR with Cr-Mo Rails, Printed Niner Graphic
- Handlebar
- Race Face Aeffect R 780mm Wide, 20mm Rise, 35mm Clamp
- Headset
- Niner Internal ZS SHIS ZS44/28.6|ZS56/40
- Rear Derailleur
- SRAM NX1 11SP
- Stem
- Race Face Aeffect R 50mm, 35mm Clamp
- Axles
- Front: 110 x 15mm Rear: 148 x 12mm
- Brake Levers
- SRAM Level
- Brakes
- SRAM Level
- Cassette
- SRAM PG 1130 11-42T
- Chainrings
- 32T
- Fork
- RockShox Judy Gold RL SOLO AIR, 120mm
- Frame
- SIR 9, Reynolds 853 steel
- Seat Post
- Niner Alloy Seat Post, 370mm, Niner Graphic
- Shifters
- SRAM NX1 11SP
- Tape/Grips
- Niner Grips L/O Nylon Flanged
- Color
- Slate Blue/Orange
- Size
- X-Large
- Front Tire
- Front: Maxxis Ardent F60 SC 29 x 2.4 Rear: Maxxis Ardent F60 SC 29 x 2.25
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.