2024 Ratking / BackAlley Lost Highway Base

	51cm	54cm	56cm	58cm
Stack	542mm	551mm	576mm	601mm
Reach	348mm	371mm	387mm	403mm
Stack to Reach Ratio	1.56:1	1.49:1	1.49:1	1.49:1
Seat Tube Length, C-C	430mm	490mm	490mm	500mm
Top Tube Length, Effective/Horizontal HT Top	510mm	540mm	564mm	585mm
Top Tube Slope	10deg	10deg	10deg	10deg
Head Tube Angle	72deg	72deg	72deg	72deg
Seat Tube Angle	73deg	73deg	73deg	73deg
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	277.9mm	277.9mm	277.9mm	277.9mm
Chainstay Length	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	429.3mm	429.3mm	429.3mm	429.3mm
Front-Center	564mm	589mm	613mm	635mm
Front-Center Horizontal	559.7mm	584.7mm	609.7mm	630.7mm
Wheelbase	989mm	1014mm	1039mm	1060mm
Fork Offset/Rake	55.5mm	54.6mm	55.4mm	52.4mm
Trail	54.7mm mid/neutral	55.7mm mid/neutral	54.8mm mid/neutral	57.9mm mid/neutral
Mechanical Trail	52.1mm	52.9mm	52.1mm	55.1mm
Wheel Flop	16.1mm	16.4mm	16.1mm	17mm
Tire to Pedal Spindle	46.1mm 170 mm cranks	71.1mm 170 mm cranks	95.1mm 170 mm cranks	117.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	107.9mm 170 mm cranks	107.9mm 170 mm cranks	107.9mm 170 mm cranks	107.9mm 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://wearestuntdoubles.com/product/back-alley-x-ratking-lost-highway-bicycle

Geometry