Name: 2017 Pure Cycles Keirin Base
Brand: Pure Cycles

	49 cm	52 cm	55 cm	58 cm
Stack	493mm	517mm	531mm	570mm
Reach	382mm	393mm	409mm	418mm
Stack to Reach Ratio	1.29:1	1.32:1	1.3:1	1.36:1
Seat Tube Length, C-T	500mm	520mm	550mm	580mm
Seat Tube Length, C-C	480mm	500mm	530mm	560mm
Top Tube Length, Effective/Horizontal Unknown	502mm	520mm	550mm	580mm
Top Tube Length, Actual C-C	495mm	520mm	550mm	580mm
Top Tube Slope	1.1deg	1.6deg	0.1deg	1.1deg
Head Tube Angle	71.5deg	72.5deg	73deg	74deg
Seat Tube Angle	75deg	75deg	74.5deg	74.5deg
Head Tube Length	100mm	113mm	129mm	170mm
Bottom Bracket Drop	54mm	52mm	50mm	50mm
Bottom Bracket Height	282mm	284mm	286mm	286mm
Chainstay Length	395mm	395mm	395mm	395mm
Chainstay Length Horizontal	391.3mm	391.6mm	391.8mm	391.8mm
Front-Center	570mm	580mm	590mm	600mm
Front-Center Horizontal	557.7mm	568.4mm	581.2mm	597.2mm
Wheelbase	949mm	960mm	973mm	989mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Trail	65mm mid/neutral	58.8mm mid/neutral	55.7mm mid/neutral	49.5mm mid/neutral
Mechanical Trail	61.6mm	56mm	53.2mm	47.6mm
Wheel Flop	19.6mm	16.9mm	15.6mm	13.1mm
Tire to Pedal Spindle	64mm 170 mm cranks	74mm 170 mm cranks	84mm 170 mm cranks	94mm 170 mm cranks
Pedal Spindle to Ground Clearance	112mm 170 mm cranks	114mm 170 mm cranks	116mm 170 mm cranks	116mm 170 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:https://www.purecycles.com/pages/about-the-keirin-track-series?srsltid=AfmBOoqKyVZ8itxUnvQEYDw_JOC5Oyoo3CLmidW2tJFlWlx2ti5K-_EZ

2017 Pure Cycles Keirin Base

Geometry