2021 RSD Bikes Sergeant V4 Rigid Alloy Fork 27.5 Fat
- Category
- Rigid MTB
- Design
- Flat Bar, Rigid, suspension corrected
- Frame
- Aluminum
- Fork
- Aluminum
- Features
- Single-speed capable
Geometry
Small | Medium | Large | XL | XXL | |
Stack | 615mm | 625mm | 634mm | 652mm | 670mm |
Reach | 408mm | 445mm | 463mm | 478mm | 493mm |
Stack to Reach Ratio | 1.51:1 | 1.4:1 | 1.37:1 | 1.36:1 | 1.36:1 |
Seat Tube Length, C-T | 390mm | 410mm | 440mm | 470mm | 490mm |
Top Tube Length, Effective/Horizontal Center | 585mm | 625mm | 645mm | 665mm | 685mm |
Top Tube Length, Actual C-C | 569mm | 605mm | 621mm | 640mm | 658mm |
Top Tube Slope | 24.8deg | 22.8deg | 19.2deg | 18.8deg | 16deg |
Head Tube Angle | 65.5deg | 65.5deg | 65.5deg | 65.5deg | 65.5deg |
Seat Tube Angle | 74deg | 74deg | 74deg | 74deg | 74deg |
Head Tube Length | 90mm | 100mm | 110mm | 130mm | 150mm |
Bottom Bracket Drop | 73.6mm | 73.6mm | 73.6mm | 73.6mm | 73.6mm |
Bottom Bracket Height | 320mm | 320mm | 320mm | 320mm | 320mm |
Chainstay Length | 440mm | 440mm | 440mm | 440mm | 440mm |
Chainstay Length Max | 455mm | 455mm | 455mm | 455mm | 455mm |
Chainstay Length Horizontal | 433.8mm | 433.8mm | 433.8mm | 433.8mm | 433.8mm |
Chainstay Length Horizontal Max | 449mm | 449mm | 449mm | 449mm | 449mm |
Front-Center | 746.8mm | 788.6mm | 809.6mm | 833.5mm | 855.4mm |
Front-Center Horizontal | 743.2mm | 785.2mm | 806.2mm | 830.2mm | 852.2mm |
Wheelbase | 1177mm | 1219mm | 1240mm | 1264mm | 1286mm |
Wheelbase Max | 1192.2mm | 1234.2mm | 1255.2mm | 1279.2mm | 1301.2mm |
Fork Offset/Rake | 51mm | 51mm | 51mm | 51mm | 51mm |
Fork Length (Axle-To-Crown) | 510mm | 510mm | 510mm | 510mm | 510mm |
Trail | 123.3mm very high | 123.3mm very high | 123.3mm very high | 123.3mm very high | 123.3mm very high |
Mechanical Trail | 112.2mm | 112.2mm | 112.2mm | 112.2mm | 112.2mm |
Wheel Flop | 46.5mm | 46.5mm | 46.5mm | 46.5mm | 46.5mm |
Standover Height | 687mm | 705mm | 710mm | 714mm | 725mm |
Tire to Pedal Spindle | 183.2mm 170 mm cranks | 225mm 170 mm cranks | 246mm 170 mm cranks | 269.9mm 170 mm cranks | 291.8mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 150mm 170 mm cranks | 150mm 170 mm cranks | 150mm 170 mm cranks | 150mm 170 mm cranks | 150mm 170 mm cranks |
Rigid Alloy Fork 27.5 Fat Build
Small | Medium | Large | 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 | 4in | 4in | 4in | 4in | 4in |
Tire Outer Diameter | 787.2mm | 787.2mm | 787.2mm | 787.2mm | 787.2mm |
Bike Length with Tires | 1964.2mm | 2006.2mm | 2027.2mm | 2051.2mm | 2073.2mm |
Published Sizing Recommendations
Height | 5 ft 2 in to 5 ft 7 in | 5 ft 7 in to 5 ft 11 in | 5 ft 10 in to 6 ft 2 in | 6 ft 1 in to 6 ft 4 in | 6 ft 3 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
Rigid MTBSource:https://rsdbikes.com/sergeant-v4-aluminum/