2013 - 2016 Surly Bikes Krampus Rigid Fork

	Small (15")	Medium (17")	Large (19")	xLarge (21")
Stack	589.8mm	594.5mm	599.2mm	613.2mm
Reach	399mm	421.6mm	441.1mm	451.7mm
Stack to Reach Ratio	1.48:1	1.41:1	1.36:1	1.36:1
Seat Tube Length, C-T	375mm	425mm	475.5mm	525mm
Top Tube Length, Effective/Horizontal Center	585mm	609mm	630mm	645mm
Top Tube Length, Actual C-C	561mm	578mm	597.4mm	614.7mm
Top Tube Slope	23.5deg	17.5deg	17.5deg	17.5deg
Head Tube Angle	69.5deg	69.5deg	69.5deg	69.5deg
Seat Tube Angle	72.5deg	72.5deg	72.5deg	72.5deg
Head Tube Length	90mm	95mm	100mm	115mm
Bottom Bracket Drop	60mm	60mm	60mm	60mm
Bottom Bracket Height	328mm	325mm	328mm	328mm
Chainstay Length	446mm	446mm	446mm	446mm
Chainstay Length Horizontal	442mm	442mm	442mm	442mm
Front-Center	651.9mm	677.4mm	699.4mm	715.9mm
Front-Center Horizontal	649.2mm	674.8mm	696.9mm	713.4mm
Wheelbase	1091.1mm	1116.7mm	1138.8mm	1155.3mm
Fork Offset/Rake	47mm	47mm	47mm	47mm
Fork Length (Axle-To-Crown)	483mm	483mm	483mm	483mm
Trail	94.9mm very high	93.8mm very high	94.9mm very high	94.9mm very high
Mechanical Trail	88.9mm	87.8mm	88.9mm	88.9mm
Wheel Flop	31.1mm	30.8mm	31.1mm	31.1mm
Standover Height	773.4mm	799.7mm	825.8mm	856.6mm
Tire to Pedal Spindle	93.9mm 170 mm cranks	117.4mm 175 mm cranks	136.4mm 175 mm cranks	152.9mm 175 mm cranks
Pedal Spindle to Ground Clearance	158mm 170 mm cranks	150mm 175 mm cranks	153mm 175 mm cranks	153mm 175 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/surly-krampus-2013-2016/

Geometry