2025 BTR Fabrications Ripper All Mountain

	S	M	L
Stack	533.3mm	533.3mm	533.3mm
Reach	330mm	355mm	375mm
Stack to Reach Ratio	1.62:1	1.5:1	1.42:1
Seat Tube Length, Unknown	300mm	320mm	345mm
Top Tube Length, Effective/Horizontal Unknown	472.9mm	497.9mm	517.9mm
Top Tube Slope	30.9deg	27.1deg	23.3deg
Head Tube Angle	64deg	64deg	64deg
Seat Tube Angle	75deg	75deg	75deg
Head Tube Length	100mm	100mm	100mm
Bottom Bracket Drop	20mm	20mm	20mm
Bottom Bracket Height	286.8mm	286.8mm	286.8mm
Chainstay Length Horizontal	370mm	370mm	375mm
Front-Center	625.2mm	650.2mm	670.1mm
Front-Center Horizontal	624.8mm	649.8mm	669.8mm
Wheelbase	994.8mm	1019.8mm	1044.8mm
Fork Offset/Rake	40mm	40mm	40mm
Fork Length (Axle-To-Crown)	473mm	473mm	473mm
Trail	105.2mm very high	105.2mm very high	105.2mm very high
Mechanical Trail	94.5mm	94.5mm	94.5mm
Wheel Flop	41.4mm	41.4mm	41.4mm
Tire to Pedal Spindle	148.3mm 170 mm cranks	173.3mm 170 mm cranks	193.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	116.8mm 170 mm cranks	116.8mm 170 mm cranks	116.8mm 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.btr-fabrications.com/products/ripper-am-frame/#frame-options

Geometry