2025 BTR Fabrications Pinner 26

	S	M	L	XL
Stack	595.3mm	604.3mm	604.3mm	613.2mm
Reach	430mm	455mm	480mm	500mm
Stack to Reach Ratio	1.38:1	1.33:1	1.26:1	1.23:1
Seat Tube Length, Unknown	400mm	420mm	435mm	450mm
Top Tube Length, Effective/Horizontal Unknown	578.4mm	605.8mm	630.8mm	653.2mm
Top Tube Slope	21.4deg	19.4deg	17.3deg	16.2deg
Head Tube Angle	63.5deg	63.5deg	63.5deg	63.5deg
Seat Tube Angle	75.07deg	75.07deg	75.07deg	75.07deg
Head Tube Length	130mm	140mm	140mm	150mm
Bottom Bracket Drop	10mm	10mm	10mm	10mm
Bottom Bracket Height	333mm	333mm	333mm	333mm
Chainstay Length Horizontal	416.9mm	416.9mm	416.9mm	416.9mm
Front-Center	766.6mm	796.1mm	821.1mm	845.5mm
Front-Center Horizontal	766.5mm	796mm	821mm	845.5mm
Wheelbase	1183.4mm	1212.9mm	1237.9mm	1262.3mm
Fork Offset/Rake	40mm	40mm	40mm	40mm
Fork Length (Axle-To-Crown)	532mm	532mm	532mm	532mm
Trail	126.3mm very high	126.3mm very high	126.3mm very high	126.3mm very high
Mechanical Trail	113.1mm	113.1mm	113.1mm	113.1mm
Wheel Flop	50.4mm	50.4mm	50.4mm	50.4mm
Tire to Pedal Spindle	253.6mm 170 mm cranks	283.1mm 170 mm cranks	308.1mm 170 mm cranks	332.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	163mm 170 mm cranks	163mm 170 mm cranks	163mm 170 mm cranks	163mm 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/pinner-frame/#frame-options

Geometry