2025 Lynskey Performance Designs Zephyr Base

	XS	S	M	ML	ML	L	XL	XXL
Stack	540mm	553mm	572mm	593mm	593mm	617mm	637mm	662mm
Reach	370mm	375mm	380mm	384mm	384mm	390mm	400mm	410mm
Stack to Reach Ratio	1.46:1	1.47:1	1.51:1	1.54:1	1.54:1	1.58:1	1.59:1	1.61:1
Seat Tube Length, C-T	450mm	470mm	490mm	510mm	—	530mm	550mm	570mm
Seat Tube Length, Unknown	—	—	—	—	510mm	—	—	—
Top Tube Length, Effective/Horizontal Unknown	519mm	533mm	545mm	560mm	560mm	574mm	594mm	619mm
Top Tube Slope	12.3deg	11.4deg	11.1deg	11.1deg	11.1deg	11.4deg	11.2deg	11.5deg
Head Tube Angle	70deg	70.5deg	70.5deg	70.5deg	70.5deg	71deg	71deg	72.5deg
Seat Tube Angle	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg	72.5deg
Head Tube Length	110mm	126mm	145mm	165mm	170mm	190mm	217mm	245mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm	75mm	75mm	75mm	75mm
Bottom Bracket Height	278mm	278mm	278mm	278mm	276mm	278mm	278mm	278mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm
Front-Center	588.4mm	600.3mm	607.2mm	620.1mm	625mm	630.1mm	648mm	664.8mm
Front-Center Horizontal	583.6mm	595.6mm	602.6mm	615.6mm	615.6mm	625.6mm	643.6mm	660.6mm
Wheelbase	1007mm	1019mm	1026mm	1039mm	1039mm	1049mm	1067mm	1084mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	395mm	395mm	395mm	395mm	—	395mm	395mm	395mm
Trail	80.6mm very high	77.3mm high	77.3mm high	77.3mm high	76.6mm high	74mm high	74mm high	64.1mm mid/neutral
Mechanical Trail	75.7mm	72.8mm	72.8mm	72.8mm	72.2mm	69.9mm	69.9mm	61.2mm
Wheel Flop	25.9mm	24.3mm	24.3mm	24.3mm	24.1mm	22.8mm	22.8mm	18.4mm
Standover Height	716mm	737mm	758mm	780mm	780mm	800mm	824mm	842mm
Tire to Pedal Spindle	65.4mm 170 mm cranks	77.3mm 170 mm cranks	84.2mm 170 mm cranks	97.1mm 170 mm cranks	104mm 170 mm cranks	107.1mm 170 mm cranks	125mm 170 mm cranks	141.8mm 170 mm cranks
Pedal Spindle to Ground Clearance	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	106mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks

	XS	S	M	ML	ML	L	XL	XXL
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	42mm	42mm	42mm	42mm	40mm	42mm	42mm	42mm
Tire Width Max	50mm	50mm	50mm	50mm	—	50mm	50mm	50mm
Tire Outer Diameter	706mm	706mm	706mm	706mm	702mm	706mm	706mm	706mm
Bike Length with Tires	1713mm	1725mm	1732mm	1745mm	1741mm	1755mm	1773mm	1790mm

Published Sizing Recommendations

Height

5 ft 0 in

5 ft 2 in

5 ft 3 in

5 ft 5 in

5 ft 6 in

5 ft 8 in

5 ft 9 in

5 ft 11 in

—

6 ft 0 in

6 ft 2 in

6 ft 3 in

6 ft 5 in

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.

Learn more about the Upright/Aggressive Scale

Category Trend

All-road/Gravel

Source:https://uploads.commoninja.com/faq/1712342698789_GR400_Geometry.png, https://lynskeyperformance.com/products/2025-gravel-red-xplr-t-type-complete

Suggest Bike Edit

2025 Lynskey Performance Designs Zephyr Base

Geometry

Base Build

Published Sizing Recommendations

Stack and Reach vs. Category Trend