2021 Tanglefoot Cycles Bull Thistle Base

	51 cm	53.5 cm	57 cm	61 cm	64 cm
Stack	530mm	550mm	585mm	625mm	655mm
Reach	410mm	445mm	455mm	465mm	470mm
Stack to Reach Ratio	1.29:1	1.24:1	1.29:1	1.34:1	1.39:1
Seat Tube Length, C-T	500mm	533mm	570mm	613mm	640mm
Top Tube Length, Effective/Horizontal Unknown	560mm	603mm	626mm	650mm	665mm
Top Tube Slope	5.7deg	4.3deg	4.1deg	3.9deg	4.2deg
Head Tube Angle	69.5deg	69.5deg	69.5deg	69.5deg	69.5deg
Seat Tube Angle	71deg	71deg	71deg	71deg	71deg
Bottom Bracket Drop	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	311.1mm	311.1mm	311.1mm	311.1mm	311.1mm
Chainstay Length	460mm	460mm	460mm	460mm	460mm
Chainstay Length Horizontal	454.6mm	454.6mm	454.6mm	454.6mm	454.6mm
Front-Center	655.1mm	697.4mm	720.4mm	745.2mm	761.3mm
Front-Center Horizontal	651.4mm	693.9mm	717mm	741.9mm	758.1mm
Wheelbase	1106mm	1148.5mm	1171.6mm	1196.5mm	1212.8mm
Fork Offset/Rake	65mm	65mm	65mm	65mm	65mm
Trail	73.1mm high	73.1mm high	73.1mm high	73.1mm high	73.1mm high
Mechanical Trail	68.5mm	68.5mm	68.5mm	68.5mm	68.5mm
Wheel Flop	24mm	24mm	24mm	24mm	24mm
Standover Height	795mm	819mm	856mm	895mm	924mm
Tire to Pedal Spindle	104mm 170 mm cranks	146.3mm 170 mm cranks	169.3mm 170 mm cranks	194.1mm 170 mm cranks	210.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	141.1mm 170 mm cranks	141.1mm 170 mm cranks	141.1mm 170 mm cranks	141.1mm 170 mm cranks	141.1mm 170 mm cranks

Published Sizing Recommendations

Height	—	5 ft 6 in to 5 ft 11 in	5 ft 9 in to 6 ft 1 in	5 ft 11 in to 6 ft 3 in	6 ft 3 in to 6 ft 5 in
PBH	79 cm to 83 cm	81 cm to 84.5 cm	85 cm to 89 cm	89 cm to 93 cm	91.5 cm to 97 cm

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://tanglefootcycles.com/tanglefoot/bull-thistle/