2025 Simpatico Gamma Race Base

	48	51	54	56	58	61
Stack	560mm	565mm	585mm	599mm	619mm	639mm
Reach	370mm	379mm	393mm	407mm	415mm	425mm
Stack to Reach Ratio	1.51:1	1.49:1	1.49:1	1.47:1	1.49:1	1.5:1
Seat Tube Length, C-T	446mm	476mm	521mm	546mm	566mm	596mm
Top Tube Length, Effective/Horizontal Center	501mm	519mm	540mm	564mm	577mm	593mm
Top Tube Slope	14.9deg	11.9deg	8.9deg	7.6deg	7.5deg	6.4deg
Head Tube Angle	70.3deg	70.9deg	71.7deg	71.7deg	71.6deg	71.6deg
Seat Tube Angle	75.5deg	74.5deg	74.5deg	74deg	74deg	74deg
Head Tube Length	100mm	103mm	129mm	147mm	171mm	192mm
Bottom Bracket Drop	87mm	87mm	87mm	84mm	81mm	81mm
Bottom Bracket Height	279mm	279mm	279mm	282mm	285mm	285mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	421.1mm	421.1mm	421.1mm	421.7mm	422.3mm	422.3mm
Front-Center	603mm	608mm	615mm	635mm	651mm	667mm
Front-Center Horizontal	590.9mm	601.9mm	609.9mm	628.3mm	644.7mm	661.7mm
Wheelbase	1012mm	1023mm	1031mm	1050mm	1067mm	1084mm
Fork Offset/Rake	54mm	54mm	49mm	49mm	49mm	49mm
Fork Length (Axle-To-Crown)	425mm	425mm	415mm	415mm	415mm	415mm
Trail	73.7mm high	69.6mm high	69.4mm high	69.4mm high	70.1mm high	70.1mm high
Mechanical Trail	69.4mm	65.8mm	65.9mm	65.9mm	66.5mm	66.5mm
Wheel Flop	23.4mm	21.5mm	20.7mm	20.7mm	21mm	21mm
Standover Height	724mm	741mm	776mm	799mm	819mm	845mm
Tire to Pedal Spindle	67mm 170 mm cranks	72mm 170 mm cranks	79mm 170 mm cranks	97mm 172 mm cranks	110mm 175 mm cranks	126mm 175 mm cranks
Pedal Spindle to Ground Clearance	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	110mm 172 mm cranks	110mm 175 mm cranks	110mm 175 mm cranks

	48	51	54	56	58	61
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	55mm	55mm	55mm	55mm	55mm	55mm
Tire Width Max	55mm	55mm	55mm	55mm	55mm	55mm
Tire Outer Diameter	732mm	732mm	732mm	732mm	732mm	732mm
Bike Length with Tires	1744mm	1755mm	1763mm	1782mm	1799mm	1816mm
Crank Length	170mm	170mm	170mm	172mm	175mm	175mm
Handlebar Width	400mm	400mm	420mm	440mm	440mm	460mm
Stem Length	70mm	70mm	80mm	90mm	100mm	100mm

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://simpaticobikes.com/product/simpatico-gamma-titanium-gravel-frame-chassis/

Geometry