2025 Wilde Bicycle Co. Spelljammer Base

	SM	MD	LG	XL	XXL
Stack	561.4mm	577.6mm	600.6mm	619.6mm	638.6mm
Reach	379mm	383.9mm	387.1mm	401.5mm	404.8mm
Stack to Reach Ratio	1.48:1	1.5:1	1.55:1	1.54:1	1.58:1
Seat Tube Length, Unknown	492mm	522mm	552mm	572mm	592mm
Top Tube Length, Effective/Horizontal Unknown	540mm	555mm	565mm	585mm	600mm
Top Tube Slope	8.6deg	7deg	6.2deg	5.9deg	5.8deg
Head Tube Angle	70.5deg	71deg	72deg	72deg	72deg
Seat Tube Angle	74deg	73.5deg	73.5deg	73.5deg	73deg
Head Tube Length	135mm	150mm	170mm	190mm	210mm
Bottom Bracket Drop	72mm	72mm	72mm	72mm	72mm
Bottom Bracket Height	277mm	277mm	277mm	277mm	277mm
Chainstay Length	438mm	438mm	438mm	445mm	445mm
Chainstay Length Horizontal	432mm	432mm	432mm	439.1mm	439.1mm
Front-Center	614.9mm	620.4mm	620.9mm	641.3mm	650.7mm
Front-Center Horizontal	610.7mm	616.2mm	616.7mm	637.3mm	646.7mm
Wheelbase	1042.7mm	1048.3mm	1048.8mm	1076.4mm	1085.8mm
Fork Offset/Rake	55mm	55mm	55mm	55mm	55mm
Fork Length (On-Axis)	395mm	395mm	395mm	395mm	395mm
Trail	65.2mm high	62mm mid/neutral	55.6mm mid/neutral	55.6mm mid/neutral	55.6mm mid/neutral
Mechanical Trail	61.5mm	58.6mm	52.9mm	52.9mm	52.9mm
Wheel Flop	20.5mm	19.1mm	16.3mm	16.3mm	16.3mm
Standover Height	765.6mm	787.1mm	812.9mm	831.5mm	849.5mm
Tire to Pedal Spindle	95.9mm 170 mm cranks	101.4mm 170 mm cranks	101.9mm 170 mm cranks	122.3mm 170 mm cranks	131.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	107mm 170 mm cranks	107mm 170 mm cranks	107mm 170 mm cranks	107mm 170 mm cranks	107mm 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.wildebikes.com/products/spelljammer

Geometry