2016 Niner Bikes BSB Base

	47	50	53	56	59	62
Stack	529mm	545mm	565mm	582mm	603mm	622mm
Reach	363mm	369mm	377mm	393mm	401mm	409mm
Stack to Reach Ratio	1.46:1	1.48:1	1.5:1	1.48:1	1.5:1	1.52:1
Seat Tube Length, C-T	470mm	500mm	530mm	560mm	590mm	620mm
Top Tube Length, Effective/Horizontal Center	510mm	525mm	545mm	565mm	585mm	605mm
Top Tube Slope	8.9deg	7.2deg	6.2deg	4.7deg	3.9deg	3deg
Head Tube Angle	70.5deg	71deg	71.5deg	72deg	72.5deg	72.5deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73.5deg	73deg	72.5deg
Head Tube Length	100mm	115mm	135mm	155mm	175mm	195mm
Bottom Bracket Drop	70mm	70mm	70mm	65mm	65mm	65mm
Bottom Bracket Height	274mm	274mm	274mm	279mm	279mm	279mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	419.2mm	419.2mm	419.2mm	420mm	420mm	420mm
Front-Center	578mm	583mm	594mm	610mm	620mm	634mm
Front-Center Horizontal	573.8mm	579.8mm	590.8mm	608mm	617mm	632mm
Wheelbase	993mm	999mm	1010mm	1028mm	1037mm	1052mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	400mm	400mm	400mm	400mm	400mm	400mm
Trail	74.1mm high	70.9mm high	67.7mm high	64.5mm mid/neutral	61.3mm mid/neutral	61.3mm mid/neutral
Mechanical Trail	69.8mm	67mm	64.2mm	61.3mm	58.4mm	58.4mm
Wheel Flop	23.3mm	21.8mm	20.4mm	18.9mm	17.6mm	17.6mm
Standover Height	721mm	745mm	769mm	797mm	823mm	848mm
Tire to Pedal Spindle	64mm 170 mm cranks	69mm 170 mm cranks	80mm 170 mm cranks	96mm 170 mm cranks	106mm 170 mm cranks	120mm 170 mm cranks
Pedal Spindle to Ground Clearance	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks

	47	50	53	56	59	62
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
Tire Width	33mm	33mm	33mm	33mm	33mm	33mm
Tire Width Max	40mm	40mm	40mm	40mm	40mm	40mm
Tire Outer Diameter	688mm	688mm	688mm	688mm	688mm	688mm
Bike Length with Tires	1681mm	1687mm	1698mm	1716mm	1725mm	1740mm

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.

Category Trend

Source:Niner Size Chart

Geometry