2013-2017 Niner Bikes SIR 9 Frameset (29" wheels)

	Small (100mm Fork)	Small (80mm Fork)	Medium (100mm Fork)	Medium (80mm Fork)	Large (100mm Fork)	Large (80mm Fork)	XL (100mm Fork)	XL (80mm Fork)
Stack	608mm	600mm	619mm	612mm	634mm	626mm	653mm	645mm
Reach	402mm	412mm	415mm	425mm	429mm	440mm	443mm	454mm
Stack to Reach Ratio	1.51:1	1.46:1	1.49:1	1.44:1	1.48:1	1.42:1	1.47:1	1.42:1
Seat Tube Length, C-T	393mm	393mm	419mm	419mm	483mm	483mm	546mm	546mm
Top Tube Length, Effective/Horizontal Center	592mm	589mm	607mm	603mm	628mm	624mm	644mm	641mm
Top Tube Slope	24.2deg	23.1deg	22.1deg	21.2deg	16.8deg	15.8deg	12.3deg	11.2deg
Head Tube Angle	69.8deg	70.8deg	70.3deg	71.3deg	70.3deg	71.3deg	70.3deg	71.3deg
Seat Tube Angle	73deg	74deg	73deg	74deg	73deg	74deg	73deg	74deg
Head Tube Length	100mm	100mm	110mm	110mm	125mm	125mm	145mm	145mm
Bottom Bracket Drop	54mm	62mm	64.9mm	62mm	61mm	69mm	61.3mm	65.5mm
Bottom Bracket Height	316.7mm	308.7mm	305.8mm	308.7mm	309.7mm	301.7mm	309.4mm	305.2mm
Chainstay Length	440mm	440mm	440mm	440mm	440mm	440mm	440mm	440mm
Chainstay Length Horizontal	436.7mm	435.6mm	435.2mm	435.6mm	435.8mm	434.6mm	435.7mm	435.1mm
Front-Center	651mm	646mm	664mm	658mm	677mm	673mm	697mm	692mm
Front-Center Horizontal	643.3mm	638.4mm	660.8mm	653.4mm	674.3mm	669.5mm	694.3mm	688.9mm
Wheelbase	1080mm	1074mm	1096mm	1089mm	1110mm	1104mm	1130mm	1124mm
Fork Offset/Rake	35.2mm	36.9mm	44.7mm	40mm	37.7mm	38.8mm	37.1mm	36.7mm
Trail	98.9mm very high	90.1mm very high	85.3mm very high	83.3mm very high	92.7mm very high	84.5mm very high	93.3mm very high	86.7mm very high
Mechanical Trail	92.8mm	85mm	80.3mm	78.9mm	87.2mm	80.1mm	87.8mm	82.2mm
Wheel Flop	32.1mm	28mm	27.1mm	25.3mm	29.4mm	25.7mm	29.6mm	26.3mm
Standover Height	713mm	708mm	733mm	728mm	787mm	781mm	837mm	831mm
Tire to Pedal Spindle	110.3mm 170 mm cranks	105.3mm 170 mm cranks	123.3mm 170 mm cranks	117.3mm 170 mm cranks	136.3mm 170 mm cranks	132.3mm 170 mm cranks	156.3mm 170 mm cranks	151.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	146.7mm 170 mm cranks	138.7mm 170 mm cranks	135.8mm 170 mm cranks	138.7mm 170 mm cranks	139.7mm 170 mm cranks	131.7mm 170 mm cranks	139.4mm 170 mm cranks	135.2mm 170 mm cranks

	Small (100mm Fork)	Small (80mm Fork)	Medium (100mm Fork)	Medium (80mm Fork)	Large (100mm Fork)	Large (80mm Fork)	XL (100mm Fork)	XL (80mm Fork)
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	2.35in	2.35in	2.35in	2.35in	2.35in	2.35in	2.35in	2.35in
Tire Width Max	2.4in	2.4in	2.4in	2.4in	2.4in	2.4in	2.4in	2.4in
Tire Outer Diameter	741.4mm	741.4mm	741.4mm	741.4mm	741.4mm	741.4mm	741.4mm	741.4mm
Bike Length with Tires	1821.4mm	1815.4mm	1837.4mm	1830.4mm	1851.4mm	1845.4mm	1871.4mm	1865.4mm

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

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Source:https://geometrygeeks.bike/bike/niner-sir-9-v2/

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2013-2017 Niner Bikes SIR 9 Frameset (29" wheels)

Geometry

Frameset (29" wheels) Build

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