2014 Btwin Ultra CF Base

	XS	S	M	L
Stack	516mm	532mm	548mm	572mm
Reach	382mm	388mm	398mm	401mm
Stack to Reach Ratio	1.35:1	1.37:1	1.38:1	1.43:1
Seat Tube Length, C-T	460mm	480mm	490mm	510mm
Top Tube Length, Effective/Horizontal Center	530mm	545mm	560mm	570mm
Top Tube Slope	8.3deg	7.8deg	8.3deg	8.7deg
Head Tube Angle	72deg	73deg	73deg	73deg
Seat Tube Angle	74deg	73.5deg	73.5deg	73.5deg
Head Tube Length	115mm	130mm	150mm	175mm
Bottom Bracket Drop	72mm	72mm	72mm	72mm
Bottom Bracket Height	264mm	264mm	264mm	264mm
Chainstay Length Horizontal	405mm	405mm	405mm	405mm
Front-Center	571.6mm	573.5mm	590.4mm	600.3mm
Front-Center Horizontal	567mm	569mm	586mm	596mm
Wheelbase	972mm	974mm	991mm	1001mm
Fork Offset/Rake	38.7mm	38.6mm	40.6mm	40.3mm
Trail	68.4mm high	62.4mm mid/neutral	60.3mm mid/neutral	60.6mm mid/neutral
Mechanical Trail	65.1mm	59.6mm	57.6mm	57.9mm
Wheel Flop	20.1mm	17.4mm	16.9mm	16.9mm
Tire to Pedal Spindle	65.6mm 170 mm cranks	67.5mm 170 mm cranks	84.4mm 170 mm cranks	94.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks	94mm 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://geometrygeeks.bike/bike/b-twin-ultra-cf-2014/

Geometry