2025 Luma Starparty Titanium

	S	M	L	XL
Stack	605mm	609mm	614mm	619mm
Reach	375mm	400mm	425mm	450mm
Stack to Reach Ratio	1.61:1	1.52:1	1.44:1	1.38:1
Seat Tube Length, C-T	440mm	460mm	480mm	500mm
Top Tube Length, Effective/Horizontal HT Top	548mm	575mm	601mm	627mm
Top Tube Slope	20.1deg	17.6deg	15.3deg	13.3deg
Head Tube Angle	69deg	69deg	69deg	69deg
Seat Tube Angle	74deg	74deg	74deg	74deg
Head Tube Length	140mm	145mm	150mm	155mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	291mm	291mm	291mm	291mm
Chainstay Length	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	424.3mm	424.3mm	424.3mm	424.3mm
Front-Center	630mm	657mm	684mm	710mm
Front-Center Horizontal	626.7mm	653.7mm	679.7mm	706.7mm
Wheelbase	1051mm	1078mm	1104mm	1131mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Fork Length, Unknown	456mm	456mm	456mm	456mm
Trail	90.4mm very high	90.4mm very high	90.4mm very high	90.4mm very high
Mechanical Trail	84.4mm	84.4mm	84.4mm	84.4mm
Wheel Flop	30.2mm	30.2mm	30.2mm	30.2mm
Tire to Pedal Spindle	99mm 170 mm cranks	126mm 170 mm cranks	153mm 170 mm cranks	179mm 170 mm cranks
Pedal Spindle to Ground Clearance	121mm 170 mm cranks	121mm 170 mm cranks	121mm 170 mm cranks	121mm 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://lumacycles.com/products/starparty?variant=50139485897004

Geometry