2022 Niner SIR 9
A bike you can always trust.
Make way for the SIR 9. A trusted mountain bike made of steel. You read that right. "SIR" stands for "Steel Is Real." The durable and versatile frame you've always wanted, made with Reynolds 853 steel. This isn't just a heavy chunk of metal though. The Reynolds 853 alloy get stronger after it's welded and because it's so strong, Niner was able to build more bike with less material. Steel is strong
The SIR 9 is designed for both singletrack and bikepacking. It includes 18 total mounting points for racks, bags, fenders, bottles, and whatever you can think of, including rear rack mount that can handle up to 55 pounds.
It supports multiple wheel sizes—29-inch or 27.5+—and can be set up as a geared or single-speed bike, thanks to Niner's BioCentric 30 bottom bracket. The bottom bracket design allows for easy adjustments to chain tension and bottom bracket height.
Niner calls this a "trail country" bike. Other people might call it a down country bike. Or they might just call it a modern style bike made with good old-fashioned steel, that you can ride wherever you dare.
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Available Colors
2022 Niner SIR 9 in Cement Grey/Black
| Build Kit | 2-STAR SRAM SX EAGLE | 3-STAR SRAM GX EAGLE | 3-STAR SRAM GX EAGLE AXS LTD | 4-STAR SHIMANO XT | 5-STAR SRAM X01 EAGLE | FRAME ONLY |
|---|---|---|---|---|---|---|
| AVAILABLE FRAME SIZES | SM, MD, LG, XL | SM, MD, LG, XL | SM, MD, LG, XL | SM, MD, LG, XL | SM, MD, LG, XL | SM, MD, LG, XL |
| AVAILABLE COLORS | CEMENT GRAY/BLACK | CEMENT GRAY/BLACK | CEMENT GRAY/BLACK | CEMENT GRAY/BLACK | CEMENT GRAY/BLACK | CEMENT GRAY/BLACK |
| FRAME | HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE | HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE | HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE | HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE | HAND WELDED AIR HARDENED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE | HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE |
| FORK | MARZOCCHI BOMBER Z2 RAIL, SWEEP ADJ, 120MM, 110X15MM, 44MM OFFSET | MARZOCCHI BOMBER Z2 RAIL, SWEEP ADJ, 120MM, 110X15MM, 44MM OFFSET | MARZOCCHI BOMBER Z2 RAIL, SWEEP ADJ, 120MM, 110X15MM, 44MM OFFSET | MARZOCCHI BOMBER Z2 RAIL, SWEEP ADJ, 120MM, 110X15MM, 44MM OFFSET | FOX 34 SC FLOAT FACTORY EVOL FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM, 44MM OFFSET | |
| SHOCK | N/A | N/A | N/A | N/A | N/A | |
| TUBES/SEALANT | STANS NO TUBES SEALANT (2 X 2OZ BOTTLES) | STANS NO TUBES SEALANT (2 X 2OZ BOTTLES) | STANS NO TUBES SEALANT (2 X 2OZ BOTTLES) | STANS NO TUBES SEALANT (2 X 2OZ BOTTLES) | STANS NO TUBES SEALANT (2 X 2OZ BOTTLES) | |
| FRONT WHEEL | NINER ALLOY, 30MM INTERNAL WIDTH, 110X15MM | NINER ALLOY, 30MM INTERNAL WIDTH, 110X15MM | NINER ALLOY, 30MM INTERNAL WIDTH, 110X15MM | NINER ALLOY, 30MM INTERNAL WIDTH, 110X15MM | DT SWISS XMC 1501 SPLINE 30, CENTERLOCK, 110X15MM | |
| REAR WHEEL | NINER ALLOY, 30MM INTERNAL WIDTH, 148X12MM | NINER ALLOY, 30MM INTERNAL WIDTH, 148X12MM | NINER ALLOY, 30MM INTERNAL WIDTH, 148X12MM | NINER ALLOY, 30MM INTERNAL WIDTH, 148X12MM | DT SWISS XMC 1501 SPLINE 30, CENTERLOCK, 148X12MM, RATCHET EXP 36 | |
| FRONT TIRE | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6 | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6 | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6 | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6 | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6 | |
| REAR TIRE | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.35 | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.35 | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.35 | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.35 | SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.35 | |
| BRAKES | SRAM LEVEL | SRAM G2 R | SRAM G2 R | SHIMANO XT M8100, METAL PAD W/ FIN | SRAM G2 RSC | |
| BRAKE LEVERS | SRAM LEVEL | SRAM G2 R | SRAM G2 R | SHIMANO XT M8100 | SRAM G2 RSC | |
| BRAKE ROTORS | SRAM LEVEL | 180/160MM SRAM CENTERLINE X | 180/160MM SRAM CENTERLINE X | 180/160 MT800 ROTORS | 180/160 CENTERLINE X ROTORS | |
| CHAIN | SRAM SX EAGLE 12SP | SRAM GX EAGLE 12 SP | SRAM GX EAGLE 12 SP | SHIMANO XT M8100 W/ QUICKLINK | SRAM X01 EAGLE 12SP | |
| FRONT SHIFTER | N/A | N/A | N/A | N/A | N/A | |
| REAR SHIFTER | SRAM SX EAGLE 12SP | SRAM GX EAGLE 12 SP | SRAM GX EAGLE AXS 12SP | SHIMANO XT M8100 12SP I-SPEC EV | SRAM X01 EAGLE 12SP | |
| FRONT DERAILLEUR | N/A | N/A | N/A | N/A | N/A | |
| REAR DERAILLEUR | SRAM SX EAGLE 12SP | SRAM GX EAGLE 12 SP | SRAM GX EAGLE AXS 12SP WITH BATTERY COVER | SHIMANO XT M8100 SGS 12SP | SRAM X01 EAGLE 12SP | |
| CASSETTE | SRAM PG 1210 11-50T | SRAM EAGLE XG 1275, 10-52T | SRAM EAGLE XG 1275, 10-52T | SHIMANO XT M8100 12SP, 10-51T | SRAM EAGLE XG 1295, 10-52T | |
| CRANKSET | SRAM X1 1K EAGLE DUB, 32T (S/M/L - 170MM, XL - 175MM) | SRAM DESCENDANT 7K EAGLE DUB, 32T (S/M/L - 170MM, XL - 175MM) | SRAM DESCENDANT 7K EAGLE DUB, 32T (S/M/L - 170MM, XL - 175MM) | RACEFACE NEXT R CARBON 12SP, 32T (S/M/L - 170MM, XL - 175MM) | SRAM X1 EAGLE CARBON DUB, 32T (S/M/L - 170MM, XL - 175MM) | |
| BOTTOM BRACKET | SRAM DUB PF30 | SRAM DUB PF30 | SRAM DUB PF30 | RACEFACE PF30 | SRAM DUB PF30 | |
| SADDLE | NINER CUSTOM TR WITH CRMO RAILS, EMBOSSED NINER GRAPHIC | NINER CUSTOM WITH CRMO RAILS, EMBOSSED NINER GRAPHIC | NINER CUSTOM WITH CRMO RAILS, EMBOSSED NINER GRAPHIC | NINER CUSTOM TR WITH CRN-TI RAILS, PRINTED NINER GRAPHIC | NINER CUSTOM TR WITH CRN-TI RAILS, PRINTED NINER GRAPHIC | |
| SEATPOST | NINER ALLOY, 370MM | KS LEV SI (XS/S-100MM, M/L/XL-150MM) | KS LEV SI (XS/S-100MM, M/L/XL-150MM) | KS LEV SI (XS/S-100MM, M/L/XL-150MM) | KS LEV SI (XS/S-100MM, M/L/XL-150MM) | |
| HANDLEBAR | RACE FACE AEFFECT R 780MM WIDE, 20MM RISE, 35MM CLAMP | RACE FACE AEFFECT R 780MM WIDE, 20MM RISE, 35MM CLAMP | RACE FACE AEFFECT R 780MM WIDE, 20MM RISE, 35MM CLAMP | RACE FACE NEXT R 800MM WIDE, 35MM RISE, 35MM CLAMP | RACE FACE NEXT R 800MM WIDE, 35MM RISE, 35MM CLAMP | |
| STEM | RACE FACE AEFFECT R 40MM, 35MM CLAMP | RACE FACE AEFFECT R 40MM, 35MM CLAMP | RACE FACE AEFFECT R 40MM, 35MM CLAMP | RACE FACE TURBINE R 40MM, 35MM CLAMP | RACE FACE TURBINE R 40MM, 35MM CLAMP | |
| HEADSET | NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40 | NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40 | NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40 | NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40 | NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40 | |
| GRIPS | NINER GRRRIPS L/O NYLON SOFT COMPOUND | NINER GRRRIPS L/O NYLON SOFT COMPOUND | NINER GRRRIPS L/O NYLON SOFT COMPOUND | NINER GRRRIPS L/O SOFT COMPOUND | NINER GRRRIPS L/O SOFT COMPOUND | |
| APPROXIMATE WEIGHT | 28.8 LBS | 27.1 LBS | 27.1 LBS | 26.3 LBS | 25.6 LBS |
Highlighted Features of the 2022 Niner SIR 9
Trail-Ready Geometry
Reynolds 853 Steel
BioCentric 30 Bottom Bracket
Multiple Mounting Options
Integrated Dropper Post Routing Options
Wheel Sizes
Lifetime Warranty
| Size | S | M | L | XL |
|---|---|---|---|---|
| TT LENGTH | 595 | 603 | 627 | 652 |
| SEAT TUBE LENGTH | 396 | 421 | 485 | 533 |
| CHAINSTAY LENGTH ACTUAL | 430 | 430 | 430 | 430 |
| HORIZONTAL CHAINSTAY | 427 | 427 | 427 | 427 |
| FRONT CENTER | 693 | 711 | 737 | 764 |
| WHEELBASE | 1119 | 1136 | 1162 | 1189 |
| BB DROP | 52 | 52 | 52 | 52 |
| HEAD TUBE LENGTH | 100 | 110 | 125 | 145 |
| HEAD TUBE ANGLE | 68 | 68 | 68 | 68 |
| SEAT TUBE ANGLE | 74 | 74 | 74 | 74 |
| STANDOVER HEIGHT | 721 | 739 | 791 | 830 |
| REACH | 410 | 425 | 445 | 465 |
| STACK | 611 | 620 | 634 | 652 |
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