2025 Rennstahl Stahl Bikes 853 Trail Gravel

	S	M	L	XL	XXL
Stack	560mm	587mm	607mm	620mm	621mm
Reach	377mm	384mm	392mm	398mm	426mm
Stack to Reach Ratio	1.49:1	1.53:1	1.55:1	1.56:1	1.46:1
Seat Tube Length, Unknown	470mm	500mm	520mm	540mm	570mm
Top Tube Length, Effective/Horizontal Unknown	540mm	565mm	585mm	605mm	630mm
Top Tube Slope	12deg	11.5deg	11.3deg	10.4deg	7deg
Head Tube Angle	69deg	69deg	69deg	69deg	69deg
Seat Tube Angle	75deg	75deg	75deg	75deg	75deg
Head Tube Length	130mm	155mm	170mm	185mm	210mm
Bottom Bracket Drop	72mm	71mm	70mm	69mm	69mm
Bottom Bracket Height	270mm	271mm	272mm	273mm	273mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	423.9mm	424.1mm	424.3mm	424.4mm	424.4mm
Front-Center	633.2mm	659.7mm	681.3mm	703mm	730.8mm
Front-Center Horizontal	629.1mm	655.9mm	677.7mm	699.6mm	727.6mm
Wheelbase	1053mm	1080mm	1102mm	1124mm	1152mm
Fork Offset/Rake	60.4mm	68.9mm	74.3mm	84.1mm	83.7mm
Trail	66.5mm high	57.5mm mid/neutral	51.7mm mid/neutral	41.2mm low	41.6mm low
Mechanical Trail	62.1mm	53.6mm	48.3mm	38.5mm	38.8mm
Wheel Flop	22.3mm	19.2mm	17.3mm	13.8mm	13.9mm
Standover Height	739mm	756mm	784mm	795mm	820mm
Tire to Pedal Spindle	121.2mm 170 mm cranks	147.7mm 170 mm cranks	169.3mm 170 mm cranks	191mm 170 mm cranks	218.8mm 170 mm cranks
Pedal Spindle to Ground Clearance	100mm 170 mm cranks	101mm 170 mm cranks	102mm 170 mm cranks	103mm 170 mm cranks	103mm 170 mm cranks

Published Sizing Recommendations

Height

165 cm

171 cm

168 cm

179 cm

178 cm

186 cm

185 cm

201 cm

195 cm

205 cm

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.

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Source:https://www.1bike4life.com/bikes