2025 Mason Cycles Macro 29"

	S	M	L	XL
Stack	580mm	584.5mm	593.5mm	607.5mm
Reach	415mm	438.5mm	466mm	490mm
Stack to Reach Ratio	1.4:1	1.33:1	1.27:1	1.24:1
Seat Tube Length, C-T	395mm	430mm	470mm	505mm
Top Tube Length, Effective/Horizontal HT Top	569mm	594mm	623.5mm	652mm
Head Tube Angle	67.5deg	67.5deg	67.5deg	67.5deg
Effective Seat Tube Angle, Unknown	75.4deg	75.1deg	75.2deg	75.1deg
Head Tube Length	95mm	100mm	110mm	125mm
Bottom Bracket Drop	63mm	63mm	63mm	63mm
Bottom Bracket Height	309mm	309mm	309mm	309mm
Chainstay Length	432mm	432mm	432mm	432mm
Chainstay Length Horizontal	427.4mm	427.4mm	427.4mm	427.4mm
Front-Center	681mm	706mm	737mm	767mm
Front-Center Horizontal	678.1mm	703.2mm	734.3mm	764.4mm
Wheelbase	1105.5mm	1130.6mm	1161.7mm	1191.8mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	503mm	503mm	503mm	503mm
Trail	105.4mm very high	105.4mm very high	105.4mm very high	105.4mm very high
Mechanical Trail	97.3mm	97.3mm	97.3mm	97.3mm
Wheel Flop	37.3mm	37.3mm	37.3mm	37.3mm
Standover Height	725mm	747mm	778mm	806mm
Tire to Pedal Spindle	139mm 170 mm cranks	164mm 170 mm cranks	195mm 170 mm cranks	225mm 170 mm cranks
Pedal Spindle to Ground Clearance	139mm 170 mm cranks	139mm 170 mm cranks	139mm 170 mm cranks	139mm 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://masoncycles.cc/shop/categories/macro

Geometry