2025 Rennstahl Stahl Bikes 853 Trail MTB
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Steel
- Suspension
- 120mm fork travel
- Features
- Disc brake
Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
S | M | L | XL | |
Stack | 635mm | 644mm | 655mm | 666mm |
Reach | 435mm | 447mm | 460mm | 480mm |
Stack to Reach Ratio | 1.46:1 | 1.44:1 | 1.42:1 | 1.39:1 |
Seat Tube Length, Unknown | 420mm | 440mm | 460mm | 480mm |
Top Tube Length, Effective/Horizontal Unknown | 600mm | 625mm | 650mm | 675mm |
Top Tube Slope | 22.9deg | 21.3deg | 20deg | 18.5deg |
Head Tube Angle | 66.5deg | 66.5deg | 66.5deg | 66.5deg |
Seat Tube Angle | 75deg | 75deg | 75deg | 75deg |
Head Tube Length | 95mm | 100mm | 110mm | 120mm |
Bottom Bracket Drop | 60mm | 60mm | 60mm | 60mm |
Bottom Bracket Height | 311mm | 311mm | 311mm | 311mm |
Chainstay Length | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 425.8mm | 425.8mm | 425.8mm | 425.8mm |
Front-Center | 731.7mm | 756.6mm | 780.5mm | 804.5mm |
Front-Center Horizontal | 729.2mm | 754.2mm | 778.2mm | 802.2mm |
Wheelbase | 1155mm | 1180mm | 1204mm | 1228mm |
Fork Offset/Rake | 40.5mm | 48.9mm | 54.6mm | 53.8mm |
Trail | 117.1mm very high | 108mm very high | 101.8mm very high | 102.6mm very high |
Mechanical Trail | 107.4mm | 99.1mm | 93.4mm | 94.1mm |
Wheel Flop | 42.8mm | 39.5mm | 37.2mm | 37.5mm |
Tire to Pedal Spindle | 190.7mm 170 mm cranks | 215.6mm 170 mm cranks | 234.5mm 175 mm cranks | 258.5mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 141mm 170 mm cranks | 141mm 170 mm cranks | 136mm 175 mm cranks | 136mm 175 mm cranks |
Trail MTB Build
S | M | L | XL | |
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 |
Tire Width | 60mm | 60mm | 60mm | 60mm |
Tire Width Max | 60mm | 60mm | 60mm | 60mm |
Tire Outer Diameter | 742mm | 742mm | 742mm | 742mm |
Bike Length with Tires | 1897mm | 1922mm | 1946mm | 1970mm |
Crank Length | 170mm | 170mm | 175mm | 175mm |
Handlebar Width | 780mm | 780mm | 780mm | 780mm |
Stem Length | 50mm | 60mm | 70mm | 80mm |
Published Sizing Recommendations
Height | 165 cm to 171 cm | 168 cm to 179 cm | 178 cm to 186 cm | 185 cm to 201 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 ScaleCategory Trend
Hardtail Trail MTBSource:https://www.1bike4life.com/rennstahl/bikes/853-trail-mtb#geometry