2019 Stanton Bikes Switchback 631 Next Gen UK Base
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Steel
- Suspension
- 140mm fork travel, 25% sag
- Features
- Disc brake
Geometry
16.5" (REGULAR) | 16.5" (LONG) | 18" (REGULAR) | 18" (LONG) | |
Stack | 610mm | 610mm | 619.5mm | 619.5mm |
Reach | 403mm | 428mm | 425mm | 444mm |
Stack to Reach Ratio | 1.51:1 | 1.43:1 | 1.46:1 | 1.4:1 |
Seat Tube Length, C-T | 419mm | 419mm | 457mm | 457mm |
Top Tube Length, Effective/Horizontal HT Top | 586mm | 611mm | 606mm | 630mm |
Top Tube Length, Actual C-C | 562.5mm | 585.2mm | 578mm | 600mm |
Top Tube Slope | 21.7deg | 20.8deg | 18.1deg | 17.5deg |
Head Tube Angle | 65.5deg | 65.5deg | 65.5deg | 65.5deg |
Seat Tube Angle | 72.7deg | 72.7deg | 72.7deg | 72.7deg |
Head Tube Length | 110mm | 110mm | 120mm | 120mm |
Bottom Bracket Drop | 43mm | 43mm | 43mm | 43mm |
Bottom Bracket Height | 307.4mm | 307.4mm | 307.4mm | 307.4mm |
Chainstay Length | 415mm | 415mm | 415mm | 415mm |
Chainstay Length Horizontal | 412.8mm | 412.8mm | 412.8mm | 412.8mm |
Front-Center | 713.3mm | 738.2mm | 739.5mm | 758.5mm |
Front-Center Horizontal | 712mm | 737mm | 738.3mm | 757.3mm |
Wheelbase | 1124.7mm | 1149.7mm | 1151mm | 1170mm |
Fork Offset/Rake | 46mm | 46mm | 46mm | 46mm |
Fork Length (Axle-To-Crown) | 497mm | 497mm | 497mm | 497mm |
Trail | 109.1mm very high | 109.1mm very high | 109.1mm very high | 109.1mm very high |
Mechanical Trail | 99.3mm | 99.3mm | 99.3mm | 99.3mm |
Wheel Flop | 41.2mm | 41.2mm | 41.2mm | 41.2mm |
Tire to Pedal Spindle | 192.8mm 170 mm cranks | 217.8mm 170 mm cranks | 219.1mm 170 mm cranks | 238.1mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 137.4mm 170 mm cranks | 137.4mm 170 mm cranks | 137.4mm 170 mm cranks | 137.4mm 170 mm cranks |
Base Build
16.5" (REGULAR) | 16.5" (LONG) | 18" (REGULAR) | 18" (LONG) | |
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 |
Tire Width | 2.3in | 2.3in | 2.3in | 2.3in |
Tire Width Max | 2.8in | 2.8in | 2.8in | 2.8in |
Tire Outer Diameter | 700.8mm | 700.8mm | 700.8mm | 700.8mm |
Bike Length with Tires | 1825.6mm | 1850.6mm | 1851.9mm | 1870.9mm |
Published Sizing Recommendations
Height | 167 cm to 177 cm | 175 cm to 180 cm | 177 cm to 185 cm | 182 cm to 193 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.stantonbikes.com/product/switchback-631-next-gen-uk-2/