2023 Robert Frameworks RM1 Base

	S	M	L	XL
Stack	586mm	603mm	622mm	643mm
Reach	400mm	412mm	421mm	435mm
Stack to Reach Ratio	1.47:1	1.46:1	1.48:1	1.48:1
Seat Tube Length, Unknown	440mm	460mm	480mm	510mm
Top Tube Length, Effective/Horizontal Unknown	560mm	580mm	600mm	620mm
Top Tube Slope	17.4deg	16.6deg	16.2deg	14.9deg
Head Tube Angle	70deg	70.5deg	70.5deg	71deg
Seat Tube Angle	75deg	74.5deg	74deg	74deg
Head Tube Length	125mm	130mm	150mm	170mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	298.2mm	298.2mm	298.2mm	298.2mm
Chainstay Length	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	419.2mm	419.2mm	419.2mm	419.2mm
Front-Center	638.5mm	651.2mm	666.8mm	682.4mm
Front-Center Horizontal	634.6mm	647.4mm	663.2mm	678.8mm
Wheelbase	1053.8mm	1066.6mm	1082.4mm	1098mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Fork Length, Unknown	450mm	450mm	450mm	450mm
Trail	87.2mm very high	83.7mm very high	83.7mm very high	80.2mm very high
Mechanical Trail	81.9mm	78.9mm	78.9mm	75.9mm
Wheel Flop	28mm	26.3mm	26.3mm	24.7mm
Tire to Pedal Spindle	100.3mm 170 mm cranks	113.1mm 170 mm cranks	128.7mm 170 mm cranks	144.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	128.2mm 170 mm cranks	128.2mm 170 mm cranks	128.2mm 170 mm cranks	128.2mm 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://robertbikestore.com/boutique/extreme-gravel/robert-frameworks-rm1/

Geometry