Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
2021 Niner SIR 9 5-Star
Previous used estimate
$2,279 - $2,345
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Niner SIR 9 5-Star
12-month projected trend
12%
Direction and magnitude, not judgment
vs. category average
7%
Drops faster than category avg
Price over time - 2021 Niner SIR 9 5-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
The SIR 9 is a comfortable, capable, hand-built bike made from proven, air-hardened, heat-treated Reynolds 853 steel. When you're spinning up the steeps, bombing down the backcountry, and grinding out the final miles as the sun sinks into the horizon, you need a bike you can trust. Our premium, 5-Star SRAM X01 Eagle build kit and the reliable SIR 9 frame will give you smiles for miles. With 120mm of premium FOX front suspension and DT Swiss XMC 1501 SPLINE wheels, riding so far and so hard was never so easy. - DT Swiss XMC 1501 SPLINE 30 carbon wheels - FOX 34 SC Float Factory EVOL FIT 4 fork w/Kashima coat, 120mm travel - KS LEV Si dropper post
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- Fox 34 SC Float Factory EVOL FIT4, 3 Position w/Adj, Kashima Coat, 120mm, 110x15mm, 44mm Offset
- Component Size
- Small, Medium, Large, X-Large
- Component Stem
- Race Face Turbine R 40mm, 35mm Clamp
- Product Family
- SIR
- Component Chain
- SRAM X01 Eagle 12sp
- Component Color
- Cement/Black/Copper
- Component Frame
- Hand Welded Air Hardened Reynolds 853 Steel; External Cable Routing; Integrated Bottle, Bag, Rack And Fender Mounts; 12x148 Thru Axle
- Component Brakes
- SRAM G2 RSC
- Component Pedals
- Sold separately
- Component Rotors
- 180/160 Centerline X Rotors
- Component Saddle
- Niner Custom TR With CrN-Ti Rails, Printed Niner Graphic
- Component Headset
- Niner Internal ZS SHIS Description ZS44/28.6|ZS56/40
- Component Crankset
- SRAM X1 Eagle Carbon DUB 32T CNC Ring
- Component Seatpost
- KS LEV Si (XS/S-100mm, M/L/XL-150mm)
- Component Shifters
- SRAM X01 Eagle 12sp
- Component Handlebar
- Race Face NEXT R 800mm Wide, 35mm Rise, 35mm Clamp
- Component Wheel Set
- Front: DT Swiss XMC 1501 Spline 30, Center Lock, 110x15mm Rear: DT Swiss XMC 1501 Spline 30, Center Lock, 148x12mm, Ratchet EXP 36
- Component Front Tire
- Front: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2.6" Rear: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2.35"
- Component Tape Grips
- Niner Grrrips L/O Soft Compound
- Component Brake Levers
- SRAM G2 RSC
- Component Bottom Bracket
- SRAM DUB PF30
- Component Rear Derailleur
- SRAM X01 Eagle 12sp
- Component Accessories Extras
- Stans No Tubes Sealant (2 x 2oz Bottles)
- Component Cassette Freewheel
- SRAM Eagle XG 1295, 10-52T
- Crankset
- SRAM X1 Eagle Carbon DUB 32T CNC Ring
- Pedals
- Sold separately
- Bottom Bracket
- SRAM DUB PF30
- Chain
- SRAM X01 Eagle 12sp
- Seatpost
- KS LEV Si (XS/S-100mm, M/L/XL-150mm)
- Saddle
- Niner Custom TR With CrN-Ti Rails, Printed Niner Graphic
- Handlebar
- Race Face NEXT R 800mm Wide, 35mm Rise, 35mm Clamp
- Headset
- Niner Internal ZS SHIS Description ZS44/28.6|ZS56/40
- Rear Derailleur
- SRAM X01 Eagle 12sp
- Stem
- Race Face Turbine R 40mm, 35mm Clamp
- Accessories & Extras
- Stans No Tubes Sealant (2 x 2oz Bottles)
- Brake Levers
- SRAM G2 RSC
- Brakes
- SRAM G2 RSC
- Fork
- Fox 34 SC Float Factory EVOL FIT4, 3 Position w/Adj, Kashima Coat, 120mm, 110x15mm, 44mm Offset
- Frame
- Hand Welded Air Hardened Reynolds 853 Steel; External Cable Routing; Integrated Bottle, Bag, Rack And Fender Mounts; 12x148 Thru Axle
- Shifters
- SRAM X01 Eagle 12sp
- Tape/Grips
- Niner Grrrips L/O Soft Compound
- Color
- Cement/Black/Copper
- Size
- X-Large
- Cassette/Freewheel
- SRAM Eagle XG 1295, 10-52T
- Rotors
- 180/160 Centerline X Rotors
- Wheel Set
- Front: DT Swiss XMC 1501 Spline 30, Center Lock, 110x15mm Rear: DT Swiss XMC 1501 Spline 30, Center Lock, 148x12mm, Ratchet EXP 36
- Front Tire
- Front: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2.6" Rear: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2.35"
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.