2019 Chumba Cycles Stella Steel Steel (27.5" wheels)

	XS	SM	MD	LG	XL
Stack	582mm	607mm	618mm	626mm	638mm
Reach	392mm	398mm	416mm	433mm	443mm
Stack to Reach Ratio	1.48:1	1.53:1	1.49:1	1.45:1	1.44:1
Seat Tube Length, Unknown	342.9mm	381mm	431.8mm	482.6mm	533.4mm
Top Tube Length, Effective/Horizontal Center	560mm	585mm	605mm	625mm	645mm
Top Tube Slope	27.4deg	25.5deg	20.7deg	16deg	12.1deg
Head Tube Angle	69.5deg	70deg	70deg	70deg	70.5deg
Seat Tube Angle	74deg	73deg	73deg	73deg	72.5deg
Head Tube Length	100mm	90mm	100mm	110mm	120mm
Bottom Bracket Drop	38mm	51.5mm	51.5mm	51.5mm	51.5mm
Bottom Bracket Height	312.6mm	311.6mm	311.6mm	311.6mm	311.6mm
Chainstay Length	420mm	443mm	443mm	443mm	443mm
Chainstay Length Max	440mm	463mm	463mm	463mm	463mm
Chainstay Length Horizontal	418.3mm	440mm	440mm	440mm	440mm
Chainstay Length Horizontal Max	438.4mm	460.1mm	460.1mm	460.1mm	460.1mm
Front-Center	643.8mm	651mm	671mm	689.9mm	699.9mm
Front-Center Horizontal	642.7mm	649mm	669mm	688mm	698mm
Wheelbase	1061mm	1089mm	1109mm	1128mm	1138mm
Wheelbase Max	1081mm	1109mm	1129mm	1148mm	1158mm
Fork Offset/Rake	44.3mm	45.9mm	44mm	43.1mm	44.6mm
Trail	83.8mm very high	83.4mm very high	85.4mm very high	86.3mm very high	81.3mm very high
Mechanical Trail	78.5mm	78.3mm	80.2mm	81.1mm	76.6mm
Wheel Flop	27.5mm	26.8mm	27.4mm	27.7mm	25.6mm
Standover Height	647.7mm	730.3mm	768.4mm	800.1mm	850.9mm
Tire to Pedal Spindle	123.2mm 170 mm cranks	117.9mm 170 mm cranks	137.9mm 170 mm cranks	156.8mm 170 mm cranks	166.8mm 170 mm cranks
Pedal Spindle to Ground Clearance	142.6mm 170 mm cranks	141.6mm 170 mm cranks	141.6mm 170 mm cranks	141.6mm 170 mm cranks	141.6mm 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://www.chumbausa.com/stella-steel-mtb-geared-singlespeed-29er-27plus

Geometry