2025 Rennstahl Stahl Bikes 853 Trail Gravel

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Carbon/Composite
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Very aggressive stack and reachvs category

Geometry

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

Trail Gravel Build

S
M
L
XL
XXL
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
50mm
50mm
50mm
50mm
50mm
Tire Outer Diameter
684mm
684mm
684mm
684mm
684mm
Bike Length with Tires
1737mm
1764mm
1786mm
1808mm
1836mm

Published Sizing Recommendations

Height
165 cm
to
171 cm
168 cm
to
179 cm
178 cm
to
186 cm
185 cm
to
201 cm
195 cm
to
205 cm

Stack and Reach vs. Category Trend

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.

Learn more about the Upright/Aggressive Scale
Category Trend
All-road/Gravel
Source:https://www.1bike4life.com/bikes