Name: 2026 Robert Frameworks RMB1 GT rigid
Brand: Robert Frameworks

	SM	M	ML	L	XL
Stack	588mm	597mm	607mm	616mm	625mm
Reach	428mm	435mm	448mm	460mm	476mm
Stack to Reach Ratio	1.37:1	1.37:1	1.35:1	1.34:1	1.31:1
Seat Tube Length, Unknown	420mm	440mm	460mm	490mm	520mm
Top Tube Length, Effective/Horizontal HT Top	575mm	590mm	605mm	620mm	640mm
Top Tube Slope	18.8deg	17.4deg	16deg	13.7deg	11.3deg
Head Tube Angle	67deg	67deg	67deg	67deg	67deg
Seat Tube Angle	76deg	75.5deg	75.5deg	75.5deg	75.5deg
Head Tube Length	90mm	100mm	110mm	120mm	130mm
Bottom Bracket Drop	60mm	60mm	60mm	60mm	60mm
Bottom Bracket Height	312mm	312mm	312mm	312mm	312mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	420.7mm	420.7mm	420.7mm	420.7mm	420.7mm
Front-Center	700.8mm	711.8mm	727.7mm	744.7mm	765.6mm
Front-Center Horizontal	698.3mm	709.3mm	725.3mm	742.3mm	763.3mm
Wheelbase	1119mm	1130mm	1146mm	1163mm	1184mm
Fork Offset/Rake	42.5mm	42.6mm	41.5mm	42.6mm	43.7mm
Fork Length (Axle-To-Crown)	490mm	490mm	490mm	490mm	490mm
Trail	111.8mm very high	111.6mm very high	112.8mm very high	111.6mm very high	110.5mm very high
Mechanical Trail	102.9mm	102.7mm	103.9mm	102.8mm	101.7mm
Wheel Flop	40.2mm	40.1mm	40.6mm	40.2mm	39.7mm
Tire to Pedal Spindle	158.9mm 170 mm cranks	169.8mm 170 mm cranks	185.8mm 170 mm cranks	202.7mm 170 mm cranks	223.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	142mm 170 mm cranks	142mm 170 mm cranks	142mm 170 mm cranks	142mm 170 mm cranks	142mm 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.

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2026 Robert Frameworks RMB1 GT rigid

Geometry