2025 Tideace FM-R185 Base

	50	53	56	59
Stack	525mm	546.2mm	567.1mm	597.7mm
Reach	374.5mm	383.4mm	399.4mm	411.6mm
Stack to Reach Ratio	1.4:1	1.42:1	1.42:1	1.45:1
Seat Tube Length, C-T	441mm	471mm	501mm	531mm
Top Tube Length, Effective/Horizontal Center	525mm	540mm	562mm	583mm
Top Tube Slope	11.5deg	10.3deg	9deg	8.9deg
Head Tube Angle	71.8deg	73deg	73.5deg	73.5deg
Seat Tube Angle	74deg	74deg	74deg	74deg
Head Tube Length	125mm	143mm	163mm	195mm
Bottom Bracket Drop	72mm	72mm	72mm	72mm
Bottom Bracket Height	267mm	267mm	267mm	267mm
Chainstay Length	405mm	405mm	405mm	405mm
Chainstay Length Horizontal	398.6mm	398.6mm	398.6mm	398.6mm
Front-Center	575.3mm	579.9mm	597.3mm	618.5mm
Front-Center Horizontal	570.8mm	575.5mm	593mm	614.3mm
Wheelbase	969.3mm	974mm	991.5mm	1012.8mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Trail	64.1mm mid/neutral	56.6mm mid/neutral	53.5mm mid/neutral	53.5mm mid/neutral
Mechanical Trail	60.9mm	54.1mm	51.3mm	51.3mm
Wheel Flop	19mm	15.8mm	14.6mm	14.6mm
Tire to Pedal Spindle	66.3mm 170 mm cranks	70.9mm 170 mm cranks	88.3mm 170 mm cranks	109.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	97mm 170 mm cranks	97mm 170 mm cranks	97mm 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://tideacebike.com/collections/road-bike-frame/products/fm-r185-700-28c-road-bike-frame

Geometry