2026 Surly Bikes Disc Trucker 26” Base

	42	46	50	52	54	56
Stack	515mm	520mm	561mm	575.5mm	594.5mm	613mm
Reach	362mm	371mm	369mm	374.5mm	378mm	387.5mm
Stack to Reach Ratio	1.42:1	1.4:1	1.52:1	1.54:1	1.57:1	1.58:1
Seat Tube Length, C-T	420mm	460mm	500mm	520mm	540mm	560mm
Top Tube Length, Effective/Horizontal HT Top	500mm	515mm	530mm	545mm	560mm	575mm
Top Tube Slope	13.1deg	8.8deg	9deg	8.4deg	8.3deg	8deg
Head Tube Angle	70deg	70deg	71deg	71deg	71deg	71deg
Seat Tube Angle	75deg	74.5deg	74deg	73.5deg	73deg	73deg
Head Tube Length	125mm	130mm	170mm	185mm	205mm	225mm
Bottom Bracket Drop	50mm	50mm	50mm	50mm	50mm	50mm
Bottom Bracket Height	275.5mm	275.5mm	275.5mm	275.5mm	275.5mm	275.5mm
Chainstay Length	450mm	450mm	450mm	450mm	450mm	450mm
Chainstay Length Horizontal	447.2mm	447.2mm	447.2mm	447.2mm	447.2mm	447.2mm
Front-Center	580.9mm	591.9mm	594.9mm	604.9mm	615.3mm	630.8mm
Front-Center Horizontal	578.8mm	589.8mm	592.8mm	602.8mm	613.3mm	628.8mm
Wheelbase	1026mm	1037mm	1040mm	1050mm	1060.5mm	1076mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	376mm	376mm	376mm	376mm	376mm	376mm
Trail	70.6mm high	70.6mm high	64.5mm mid/neutral	64.5mm mid/neutral	64.5mm mid/neutral	64.5mm mid/neutral
Mechanical Trail	66.3mm	66.3mm	61mm	61mm	61mm	61mm
Wheel Flop	22.7mm	22.7mm	19.9mm	19.9mm	19.9mm	19.9mm
Standover Height	710mm	731mm	766mm	782mm	800mm	819.5mm
Tire to Pedal Spindle	90.4mm 165 mm cranks	101.4mm 165 mm cranks	99.4mm 170 mm cranks	109.4mm 170 mm cranks	119.8mm 170 mm cranks	130.3mm 175 mm cranks
Pedal Spindle to Ground Clearance	110.5mm 165 mm cranks	110.5mm 165 mm cranks	105.5mm 170 mm cranks	105.5mm 170 mm cranks	105.5mm 170 mm cranks	100.5mm 175 mm cranks

	42	46	50	52	54	56
Wheel Size	26 in 559 mm BSD	26 in 559 mm BSD	26 in 559 mm BSD	26 in 559 mm BSD	26 in 559 mm BSD	26 in 559 mm BSD
Tire Width	46mm	46mm	46mm	46mm	46mm	46mm
Tire Width Max	50mm	50mm	50mm	50mm	50mm	50mm
Tire Outer Diameter	651mm	651mm	651mm	651mm	651mm	651mm
Bike Length with Tires	1677mm	1688mm	1691mm	1701mm	1711.5mm	1727mm
Crank Length	165mm	165mm	170mm	170mm	170mm	175mm
Handlebar Width	420mm	420mm	420mm	450mm	450mm	480mm
Stem Length	70mm	70mm	70mm	90mm	100mm	110mm
Stem Angle	6deg	6deg	6deg	6deg	6deg	6deg

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://surlybikes.com/products/disc-trucker-26-pea-lime-soup

Geometry