2020 Bombtrack Bicycle Company Tempest (Steel)

	S	M	L	XL
Stack	516mm	545mm	568mm	601mm
Reach	384mm	394mm	405mm	414mm
Stack to Reach Ratio	1.34:1	1.38:1	1.4:1	1.45:1
Seat Tube Length, C-T	500mm	530mm	570mm	600mm
Top Tube Length, Effective/Horizontal HT Top	528mm	550mm	568mm	592mm
Top Tube Slope	3.8deg	3.8deg	2.1deg	2.5deg
Head Tube Angle	72.2deg	73deg	73.3deg	73.3deg
Seat Tube Angle	74.5deg	74deg	74deg	73.5deg
Head Tube Length	100mm	130mm	155mm	190mm
Bottom Bracket Drop	65mm	62mm	60mm	60mm
Bottom Bracket Height	271mm	274mm	276mm	276mm
Chainstay Length	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	404.8mm	405.3mm	405.6mm	405.6mm
Front-Center	580mm	592mm	608mm	626mm
Front-Center Horizontal	576.2mm	588.7mm	604.4mm	623.4mm
Wheelbase	981mm	994mm	1010mm	1029mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	375mm	375mm	375mm	375mm
Trail	60.6mm mid/neutral	55.7mm mid/neutral	53.8mm mid/neutral	53.8mm mid/neutral
Mechanical Trail	57.7mm	53.2mm	51.6mm	51.6mm
Wheel Flop	17.6mm	15.6mm	14.8mm	14.8mm
Standover Height	765mm	787mm	820mm	849mm
Tire to Pedal Spindle	74mm 170 mm cranks	83.5mm 172.5 mm cranks	97mm 175 mm cranks	115mm 175 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	101.5mm 172.5 mm cranks	101mm 175 mm cranks	101mm 175 mm cranks

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:http://bombtrack.com/2020-tempest/

Geometry