Compare: 2018 Niner SIR 9 29 1-Star vs SIR 9 27.5+ 1-Star vs SIR 9 1-STAR vs SIR 9 29 2-Star vs SIR 9 27.5+ 2-Star vs SIR 9 2-STAR vs SIR 9 3-STAR vs SIR 9 29 3-Star vs SIR 9 27.5+ 3-Star vs SIR 9 4-STAR vs SIR 9 29 4-Star vs SIR 9 27.5+ 4-Star vs SIR 9 5-STAR

Overview
Ride Feel
Gearing
Spec Level
Geometry
Specs

Bike Comparison

Only show differences

	SIR 9 29 1-Star2018 Niner	SIR 9 27.5+ 1-Star2018 Niner	SIR 9 1-STAR2018 Niner	SIR 9 29 2-Star2018 Niner	SIR 9 27.5+ 2-Star2018 Niner	SIR 9 2-STAR2018 Niner	SIR 9 3-STAR2018 Niner	SIR 9 29 3-Star2018 Niner	SIR 9 27.5+ 3-Star2018 Niner	SIR 9 4-STAR2018 Niner	SIR 9 29 4-Star2018 Niner	SIR 9 27.5+ 4-Star2018 Niner	SIR 9 5-STAR2018 Niner

MSRP	$2,300	$2,300	$2,300	$3,200	$3,200	$3,200	$3,950	$3,950	$3,950	$4,950	$4,950	$4,950	$5,950
Where to Buy	— $1 At	— $1 At	— $1 At	— $1 At	— $1 At	— $1 At	— $1 At	— $1 At	— $1 At	— $1 At	— $1 At	— $1 At	— $1 At
Category	Trail	Trail	Trail	Trail	Trail	Trail	Trail	Trail	Trail	Trail	Trail	Trail	Trail
	4.6	4.6	4.4	5.6	5.6	5.6	6.2	6.2	6.2	7.4	7.5	7.6	8.0
Frame	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel
Fork	RockShox Judy Gold RL	RockShox Judy Gold RL	RockShox Judy Gold RL	Fox Rhythm Float 34	Fox Rhythm Float 34	Fox Rhythm Float 34	Fox Factory Float 34	Fox Factory Float 34	Fox Factory Float 34	Fox Factory Float 34	Fox Factory Float 34	Fox Factory Float 34	Fox Factory Float 34
Wheels	Aluminum	Aluminum		Aluminum	Aluminum			Aluminum	Aluminum		Aluminum	Aluminum	Carbon
Wheel Size	29″	27.5″	27.5″	29″	27.5″	27.5″	27.5″	29″	27.5″	27.5″	29″	27.5″	27.5″
Brakes	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc	Hydraulic Disc
Groupset	NX	NX	NX	GX, Truvativ Stylo	GX, Truvativ Stylo	GX Eagle, Truvativ Stylo	GX Eagle, Truvativ Stylo	GX, Truvativ Stylo	GX, Truvativ Stylo	X01 Eagle, X1	X01, X1	X01, X1	X01, X01 Eagle
Drivetrain	1 × 11	1 × 11	1 × 11	1 × 12	1 × 12	1 × 12	1 × 12	1 × 12	1 × 12	1 × 12	1 × 12	1 × 12	1 × 12
Suspension	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail
Front Travel	120mm	120mm	120mm	120mm	120mm	120mm	120mm	120mm	120mm	120mm	120mm	120mm	120mm
Brand Site	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com	ninerbikes.com

Similar Bikes

Accessories

Ride Feel

Based on frame geometry and build specs.

Terrain

easyextreme

Handling

nimblestable

SIR 9 29 1-Star

SIR 9 27.5+ 1-Star

SIR 9 29 2-Star

SIR 9 27.5+ 2-Star

SIR 9 29 3-Star

SIR 9 27.5+ 3-Star

SIR 9 29 4-Star

SIR 9 27.5+ 4-Star

SIR 9 5-STAR

Other Trail bikes

Gear Range

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

25 mph

SIR 9 29 1-Star

24 mph

SIR 9 27.5+ 1-Star

24 mph

SIR 9 1-STAR

28 mph

SIR 9 29 2-Star

26 mph

SIR 9 27.5+ 2-Star

26 mph

SIR 9 2-STAR

26 mph

SIR 9 3-STAR

28 mph

SIR 9 29 3-Star

26 mph

SIR 9 27.5+ 3-Star

26 mph

SIR 9 4-STAR

28 mph

SIR 9 29 4-Star

26 mph

SIR 9 27.5+ 4-Star

28 mph

SIR 9 5-STAR

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Geometry

Specs

	SIR 9 29 1-Star2018 Niner	SIR 9 27.5+ 1-Star2018 Niner	SIR 9 1-STAR2018 Niner	SIR 9 29 2-Star2018 Niner	SIR 9 27.5+ 2-Star2018 Niner	SIR 9 2-STAR2018 Niner	SIR 9 3-STAR2018 Niner	SIR 9 29 3-Star2018 Niner	SIR 9 27.5+ 3-Star2018 Niner	SIR 9 4-STAR2018 Niner	SIR 9 29 4-Star2018 Niner	SIR 9 27.5+ 4-Star2018 Niner	SIR 9 5-STAR2018 Niner

Frame	Chromoly	Chromoly	SIR 9 - SLATE BLUE/ORANGE	Chromoly	Chromoly	SIR 9 - SLATE BLUE/ORANGE	SIR 9 - SLATE BLUE/ORANGE	Chromoly	Chromoly	SIR 9 - SLATE BLUE/ORANGE	Chromoly	Chromoly	SIR 9 - SLATE BLUE/ORANGE
Fork	RockShox Judy Gold RL Solo Air Travel: 120mm Spring Type: Air	RockShox Judy Gold RL Solo Air Travel: 120mm Spring Type: Air	ROCKSHOX JUDY GOLD RL SOLO AIR, 120MM, 110X15MM Travel: 120mm Spring Type: Air	FOX 34 Float Rhythm, GRIP damper, EVOL air canister Travel: 120mm Spring Type: Air	FOX 34 Float Rhythm, GRIP damper, EVOL air canister Travel: 120mm Spring Type: Air	FOX 34 FLOAT RHYTHM GRIP EVOL, SWEEP ADJUST, 120MM, 110X15MM Travel: 120mm Spring Type: Air	FOX 34 FLOAT FACTORY FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM Travel: 120mm Spring Type: Air	FOX 34 Factory Float FIT4, Kashima coating, EVOL air canister, 3-position compression adjustment Travel: 120mm Spring Type: Air	FOX 34 Factory Float FIT4, Kashima coating, EVOL air canister, 3-position compression adjustment Travel: 120mm Spring Type: Air	FOX 34 FLOAT FACTORY FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM Travel: 120mm Spring Type: Air	FOX 34 Factory Float FIT4, Kashima coating, EVOL air canister, 3-position compression adjustment Travel: 120mm Spring Type: Air	FOX 34 Factory Float FIT4, Kashima coating, EVOL air canister, 3-position compression adjustment Travel: 120mm Spring Type: Air	FOX 34 FLOAT FACTORY FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM Travel: 120mm Spring Type: Air
Shock	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air	N/A Spring Type: Air
Bottom Bracket	Pressfit	Pressfit	SRAM%20PF30	Pressfit	Pressfit	SRAM%20PF30	SRAM%20PF30	Pressfit	Pressfit	SRAM%20PF30	Pressfit	Pressfit	SRAM%20PF30
Headset	Niner headset, zero-stack SHIS, ZS44/28.6, ZS56/40	Niner headset, zero-stack SHIS, ZS44/28.6, ZS56/40	NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6\|ZS56/40	Niner headset, zero-stack SHIS, ZS44/28.6, ZS56/40	Niner headset, zero-stack SHIS, 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 headset, zero-stack SHIS, ZS44/28.6, ZS56/40	Niner headset, zero-stack SHIS, ZS44/28.6, ZS56/40	NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6\|ZS56/40	Niner headset, zero-stack SHIS, ZS44/28.6, ZS56/40	Niner headset, zero-stack SHIS, ZS44/28.6, ZS56/40	NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6\|ZS56/40
Stem	Race Face Aeffect R, 50mm length	Race Face Aeffect R, 50mm length	RACE FACE AEFFECT R 50MM, 35MM CLAMP	Race Face Aeffect R, 50mm length	Race Face Aeffect R, 50mm length	RACE FACE AEFFECT R 50MM, 35MM CLAMP	RACE FACE AEFFECT R 50MM, 35MM CLAMP	Race Face Aeffect R, 50mm length	Race Face Aeffect R, 50mm length	RACE FACE TURBINE BASIC 50MM, 35MM CLAMP	Race Face Turbine Basic 35, 50mm length		RACE FACE TURBINE BASIC 50MM, 35MM CLAMP
Handlebar	Race Face Aeffect R, 780mm width, 20mm rise	Race Face Aeffect R, 780mm width, 20mm rise	RACE FACE AEFFECT R 780MM WIDE, 20MM RISE, 35MM CLAMP	Race Face Aeffect R, 780mm width, 20mm rise	Race Face Aeffect R, 780mm width, 20mm rise	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 width, 20mm rise	Race Face Aeffect R, 780mm width, 20mm rise	RACE FACE SIXC 820MM WIDE, 20MM RISE, 35MM CLAMP	Race Face SixC 35, 820mm width		RACE FACE SIXC 820MM WIDE, 20MM RISE, 35MM CLAMP
Saddle	Niner Custom TR, chromoly rails, printed Niner graphic	Niner Custom TR, chromoly rails, printed Niner graphic	NINER CUSTOM TR WITH CR-MO RAILS, PRINTED NINER GRAPHIC	Niner Custom TR, chromoly rails, printed Niner graphic	Niner Custom TR, chromoly rails, printed Niner graphic	NINER CUSTOM TR WITH CR-MO RAILS, PRINTED NINER GRAPHIC	NINER CUSTOM TR WITH CR-MO RAILS, PRINTED NINER GRAPHIC	Niner Custom TR, chromoly rails, printed Niner graphic	Niner Custom TR, chromoly rails, printed Niner graphic	NINER CUSTOM TR WITH CRN-TI RAILS, PRINTED NINER GRAPHIC	Niner Custom TR, carbon-titanium rails, custom Niner graphic	Niner Custom TR, carbon-titanium rails, custom Niner graphic	NINER CUSTOM TR WITH CRN-TI RAILS, PRINTED NINER GRAPHIC
Seatpost	Niner Alloy, 370mm length Type: Dropper	Niner Alloy, 370mm length Type: Dropper	NINER ALLOY SEAT POST, 370MM, NINER GRAPHIC Type: Dropper	KS Lev Integra SI Type: Dropper	KS Lev Integra SI Type: Dropper	KS LEV SI Type: Dropper	KS LEV SI Type: Dropper	KS Lev Integra SI Type: Dropper	KS Lev Integra SI Type: Dropper	KS LEV INTEGRA Type: Dropper	KS Lev Integra Type: Dropper	KS Lev Integra Type: Dropper	KS LEV INTEGRA Type: Dropper
Pedals	N/A	N/A		N/A	N/A			N/A	N/A		N/A	N/A	N/A
Grips	Niner Grrrips, nylon flanges	Niner Grrrips, nylon flanges	NINER GRRRIPS L/O NYLON FLANGED	Niner Grrrips, nylon flanges	Niner Grrrips, nylon flanges	NINER GRRRIPS L/O NYLON FLANGED		Niner Grrrips, nylon flanges	Niner Grrrips, nylon flanges	NINER GRRRIPS L/O FLANGED	Niner Grrrips, nylon flanges		NINER GRRRIPS L/O FLANGED

Groupset

Rear Derailleur	SRAM NX1, 11-speed	SRAM NX1, 11-speed		SRAM Eagle GX, 12-speed	SRAM Eagle GX, 12-speed			SRAM Eagle GX, 12-speed	SRAM Eagle GX, 12-speed		SRAM Eagle X01, 12-speed	SRAM Eagle X01, 12-speed	SRAM Eagle X01, 12-speed
Front Derailleur	N/A	N/A		N/A	N/A			N/A	N/A		N/A	N/A
Crank	SRAM NX1	SRAM NX1	SRAM NX1 GXP 32T	SRAM Stylo 7K Eagle	SRAM Stylo 7K Eagle	SRAM STYLO 7K EAGLE PF30 32T	SRAM STYLO 7K EAGLE PF30 32T	SRAM Stylo 7K Eagle	SRAM Stylo 7K Eagle	SRAM X1 EAGLE CARBON GXP 32T CNC RING	SRAM X1 Carbon	SRAM X1 Carbon	SRAM X1 EAGLE CARBON GXP 32T CNC RING
Shifters	SRAM NX1, 11-speed	SRAM NX1, 11-speed	SRAM NX1 11SP	SRAM Eagle GX, 12-speed	SRAM Eagle GX, 12-speed	SRAM GX EAGLE 12SP	SRAM GX EAGLE 12SP	SRAM Eagle GX, 12-speed	SRAM Eagle GX, 12-speed	SRAM X01 EAGLE 12SP	SRAM Eagle X01, 12-speed	SRAM Eagle X01, 12-speed	SRAM X01 EAGLE 12SP
Cassette	SRAM PG-1130, 11-42 tooth	SRAM PG-1130, 11-42 tooth	SRAM PG 1130 11-42T	SRAM XG-1275, 10-50 tooth	SRAM XG-1275, 10-50 tooth	SRAM EAGLE XG 1275, 10-50T	SRAM EAGLE XG 1275, 10-50T	SRAM XG-1275, 10-50 tooth	SRAM XG-1275, 10-50 tooth	SRAM EAGLE XG 1295, 10-50T	SRAM XG-1295, 10-50 tooth	SRAM XG-1295, 10-50 tooth	SRAM EAGLE XG 1295, 10-50T
Chain	SRAM PC-1110, 11-speed	SRAM PC-1110, 11-speed	SRAM PC1110 11SP	SRAM GX Eagle, 12-speed	SRAM GX Eagle, 12-speed	SRAM GX EAGLE 12SP	SRAM GX EAGLE 12SP	SRAM GX Eagle, 12-speed	SRAM GX Eagle, 12-speed	SRAM X01 EAGLE 12SP	SRAM X01 Eagle, 12-speed	SRAM X01 Eagle, 12-speed	SRAM X01 EAGLE 12SP
Chain Guide	N/A	N/A		N/A	N/A			N/A	N/A		N/A	N/A	N/A
Brakes	SRAM Level, 180mm front / 160mm rear rotors Type: Hydraulic Disc	SRAM Level, 180mm front / 160mm rear rotors Type: Hydraulic Disc	SRAM LEVEL Type: Hydraulic Disc	SRAM Guide R, 180mm front / 160mm rear rotors Type: Hydraulic Disc	SRAM Guide R, 180mm front / 160mm rear rotors Type: Hydraulic Disc	SRAM GUIDE R Type: Hydraulic Disc	SRAM GUIDE R Type: Hydraulic Disc	SRAM Guide R, 180mm front / 160mm rear rotors Type: Hydraulic Disc	SRAM Guide R, 180mm front / 160mm rear rotors Type: Hydraulic Disc	SRAM GUIDE RSC Type: Hydraulic Disc	SRAM Guide RSC, 180mm front / 160mm rear rotors Type: Hydraulic Disc	Hydraulic Disc Type: Hydraulic Disc	SRAM GUIDE RSC Type: Hydraulic Disc
Brake Levers	SRAM Level	SRAM Level	SRAM LEVEL	SRAM Guide R	SRAM Guide R	SRAM GUIDE R	SRAM GUIDE R	SRAM Guide R	SRAM Guide R	SRAM GUIDE RSC	SRAM Guide RSC		SRAM GUIDE RSC

Wheels

Rims	Niner Alloy 29"	Niner Alloy 27.5+		Niner Alloy 29"	Niner Alloy 27.5+			Stan's NoTubes Neo/ZTR Arch MK3	Stan's NoTubes Neo/ZTR Arch Baron		Stan's NoTubes Neo/ZTR Arch MK3	Stan's NoTubes Neo/ZTR Arch Baron	Niner Carbon XC
Spokes													32 count front and rear
Front Hub	Niner Alloy, 15mm x 110mm, 12mm x 148mm	Niner Alloy 27.5+, 15mm x 110mm, 12mm x 148mm		Niner Alloy 29", 15mm x 110mm, 12mm x 148mm	Niner Alloy 27.5+, 15mm x 110mm, 12mm x 148mm			Stan's NoTubes Neo/ZTR Arch MK3, 15mm x 110mm, 12mm x 148mm	Stan's NoTubes Neo/ZTR Arch Baron, 15mm x 110mm, 12mm x 148mm		Stan's NoTubes Neo/ZTR Arch MK3, 15mm x 110mm, 12mm x 148mm	Stan's NoTubes Neo/ZTR Arch Baron, 15mm x 110mm, 12mm x 148mm	DT Swiss 350, 15mm x 110mm, 12mm x 148mm, XD Driver
Rear Hub	Niner Alloy, 15mm x 110mm, 12mm x 148mm	Niner Alloy 27.5+, 15mm x 110mm, 12mm x 148mm		Niner Alloy 29", 15mm x 110mm, 12mm x 148mm	Niner Alloy 27.5+, 15mm x 110mm, 12mm x 148mm			Stan's NoTubes Neo/ZTR Arch MK3, 15mm x 110mm, 12mm x 148mm	Stan's NoTubes Neo/ZTR Arch Baron, 15mm x 110mm, 12mm x 148mm		Stan's NoTubes Neo/ZTR Arch MK3, 15mm x 110mm, 12mm x 148mm	Stan's NoTubes Neo/ZTR Arch Baron, 15mm x 110mm, 12mm x 148mm	DT Swiss 350, 15mm x 110mm, 12mm x 148mm, XD Driver
Tires	Front: Maxxis Ardent 2.4", dual compound, tubeless ready, Rear: Maxxis Ardent 2.25", dual compound, tubeless ready	Maxxis Rekon+ 2.8" EXO, dual compound, tubeless ready	29" MAXXIS ARDENT F60 SC 2.4 or 27.5+ MAXXIS REKON+ DC/EXO/TR 2.8	Front: Maxxis Ardent F60 2.4", soft compound, Rear: Maxxis Ardent F60 2.25", soft compound	Maxxis Rekon+ 2.8" EXO, dual compound, tubeless ready	29" MAXXIS ARDENT F60 SC 2.4 or 27.5+ MAXXIS REKON+ DC/EXO/TR 2.8	29" MAXXIS ARDENT DC/EXO/TR 2.4 or 27.5+ MAXXIS REKON+ DC/EXO/TR 2.8	Front: Maxxis Ardent 2.4", dual compound, tubeless ready, Rear: Maxxis Ardent 2.25", dual compound, tubeless ready	Maxxis Rekon+ 2.8" EXO, dual compound, tubeless ready	29" MAXXIS ARDENT DC/EXO/TR 2.4 or 27.5+ MAXXIS REKON+ DC/EXO/TR 2.8	Front: Maxxis Ardent 2.4", dual compound, tubeless ready, Rear: Maxxis Ardent 2.25", dual compound, tubeless ready	Maxxis Rekon+ 2.8" EXO, dual compound, tubeless ready	29" MAXXIS ARDENT DC/EXO/TR 2.4

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