2022 Mason Cycles Raw Base

	Small	Medium	Large	Extra Large
Stack	610mm	619mm	628.5mm	637mm
Reach	426mm	451mm	471mm	495mm
Stack to Reach Ratio	1.43:1	1.37:1	1.33:1	1.29:1
Seat Tube Length, C-T	395mm	430mm	470mm	505mm
Top Tube Length, Effective/Horizontal Center	577mm	606mm	628mm	654mm
Head Tube Angle	66deg	66deg	66deg	66deg
Effective Seat Tube Angle, ETT HT Top	75deg	75deg	75deg	75deg
Head Tube Length	100mm	110mm	120mm	130mm
Bottom Bracket Drop	60mm	60mm	60mm	60mm
Bottom Bracket Height	317mm	317mm	317mm	317mm
Chainstay Length	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	430.8mm	430.8mm	430.8mm	430.8mm
Front-Center	722.7mm	751.6mm	775.5mm	802.4mm
Front-Center Horizontal	720.2mm	749.2mm	773.2mm	800.2mm
Wheelbase	1151mm	1180mm	1204mm	1231mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Fork Length (Axle-To-Crown)	531mm	531mm	531mm	531mm
Trail	119.7mm very high	119.7mm very high	119.7mm very high	119.7mm very high
Mechanical Trail	109.4mm	109.4mm	109.4mm	109.4mm
Wheel Flop	44.5mm	44.5mm	44.5mm	44.5mm
Tire to Pedal Spindle	175.6mm 170 mm cranks	204.5mm 170 mm cranks	228.4mm 170 mm cranks	255.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	147mm 170 mm cranks	147mm 170 mm cranks	147mm 170 mm cranks	147mm 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:Mason Cycles

Geometry