2025 Turner Bikes Nitrous Base
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average 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 | Very upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
sm | md | lg | xl | |
Stack | 610mm | 623mm | 644mm | 672mm |
Reach | 428mm | 448mm | 462mm | 478mm |
Stack to Reach Ratio | 1.43:1 | 1.39:1 | 1.39:1 | 1.41:1 |
Seat Tube Length, C-T | 370mm | 400mm | 430mm | 470mm |
Top Tube Length, Actual C-C | 590mm | 620mm | 640mm | 675mm |
Top Tube Slope | 25.8deg | 23.2deg | 21.7deg | 19.9deg |
Head Tube Angle | 66.5deg | 66.5deg | 66.5deg | 66.5deg |
Seat Tube Angle | 75deg | 74.5deg | 74.5deg | 74deg |
Head Tube Length | 85mm | 100mm | 125mm | 155mm |
Bottom Bracket Drop | 62mm | 62mm | 60mm | 60mm |
Bottom Bracket Height | 307.4mm | 307.4mm | 309.4mm | 309.4mm |
Chainstay Length | 435mm | 435mm | 440mm | 445mm |
Chainstay Length Horizontal | 430.6mm | 430.6mm | 435.9mm | 440.9mm |
Front-Center | 712.2mm | 738.1mm | 766.5mm | 802.3mm |
Front-Center Horizontal | 709.4mm | 735.4mm | 764.1mm | 800.1mm |
Wheelbase | 1140mm | 1166mm | 1200mm | 1241mm |
Fork Offset/Rake | 39.6mm | 39.9mm | 44.2mm | 51.3mm |
Trail | 117.5mm very high | 117.1mm very high | 112.5mm very high | 104.7mm very high |
Mechanical Trail | 107.7mm | 107.4mm | 103.1mm | 96mm |
Wheel Flop | 43mm | 42.8mm | 41.1mm | 38.3mm |
Standover Height | 760mm | 775mm | 805mm | 835mm |
Tire to Pedal Spindle | 172.7mm 170 mm cranks | 198.6mm 170 mm cranks | 227mm 170 mm cranks | 262.9mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 137.4mm 170 mm cranks | 137.4mm 170 mm cranks | 139.4mm 170 mm cranks | 139.4mm 170 mm cranks |
Base Build
sm | md | lg | 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 | 2.3in | 2.3in | 2.3in | 2.3in |
Tire Width Max | 2.6in | 2.6in | 2.6in | 2.6in |
Tire Outer Diameter | 738.8mm | 738.8mm | 738.8mm | 738.8mm |
Bike Length with Tires | 1878.8mm | 1904.8mm | 1938.8mm | 1979.8mm |
Published Sizing Recommendations
Height | 5 ft 1 in to 5 ft 6 in | 5 ft 6 in to 5 ft 10 in | 5 ft 10 in to 6 ft 2 in | 6 ft 2 in to 6 ft 6 in |
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://turnerbikes.com/products/nitrous-ti-frame