2021 Vitus Bikes Nucleus Base
- Category
- Kids MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Fork
- Aluminum
- Suspension
- 100mm fork travel
- Features
- Disc brake
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 | Somewhat upright 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 |
Geometry
24" | 26" (14" frame) | L | XL | |
Stack | 487.3mm | 553.1mm | 623mm | 615mm |
Reach | 342mm | 396mm | 450mm | 477mm |
Stack to Reach Ratio | 1.42:1 | 1.4:1 | 1.38:1 | 1.29:1 |
Seat Tube Length, C-T | 340mm | 356mm | 483mm | — |
Seat Tube Length, C-C | 160mm | 176mm | — | — |
Seat Tube Length, Unknown | — | — | — | 520mm |
Top Tube Length, Effective/Horizontal HT Top | — | — | 640mm | — |
Top Tube Length, Effective/Horizontal Unknown | 496mm | 565.1mm | — | 665mm |
Top Tube Slope | 20.2deg | 23deg | 15.2deg | 10.6deg |
Head Tube Angle | 67deg | 67deg | 67deg | 66.5deg |
Seat Tube Angle | 72.5deg | 73deg | 73deg | 73deg |
Head Tube Length | 90mm | 105mm | 120mm | 130mm |
Bottom Bracket Drop | 45mm | 40mm | 61.5mm | 45mm |
Bottom Bracket Height | 261.8mm | 296.7mm | 306.7mm | 304.2mm |
Chainstay Length | 415mm | 430mm | 439mm | 425mm |
Chainstay Length Horizontal | 412.6mm | 428.1mm | 434.7mm | 422.6mm |
Front-Center | 444mm | 461.5mm | 740.4mm | 774.7mm |
Front-Center Horizontal | 554.4mm | 643mm | 737.8mm | 773.4mm |
Wheelbase | 967mm | 1071.1mm | 1172.5mm | 1196mm |
Fork Offset/Rake | 41mm | 38mm | 45.6mm | 44.5mm |
Fork Length (On-Axis) | 242mm | 267mm | — | — |
Trail | 85.7mm very high | 101.6mm very high | 106.8mm very high | 103.3mm very high |
Mechanical Trail | 78.9mm | 93.5mm | 98.3mm | 94.7mm |
Wheel Flop | 30.8mm | 36.6mm | 38.4mm | 37.8mm |
Tire to Pedal Spindle | -2.8mm 140 mm cranks | -35.1mm 160 mm cranks | 197.2mm 175 mm cranks | 250.6mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 121.8mm 140 mm cranks | 136.7mm 160 mm cranks | 131.7mm 175 mm cranks | 129.2mm 175 mm cranks |
Base Build
24" | 26" (14" frame) | L | XL | |
Wheel Size | 24 in 507 mm BSD | 26 in 559 mm BSD | 700C/29 in 622 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 2.1in | 2.25in | 2.25in | 2.25in |
Tire Outer Diameter | 613.7mm | 673.3mm | 736.3mm | 698.3mm |
Bike Length with Tires | 1580.6mm | 1744.4mm | 1908.8mm | 1894.3mm |
Crank Length | 140mm | 160mm | 175mm | 175mm |
Handlebar Width | 620mm | 700mm | 740mm | 740mm |
Stem Length | 60mm | 40mm | — | 50mm |
Stem Angle | 3deg | 3deg | — | 3deg |
Published Sizing Recommendations
Height | 4 ft 1 in to 4 ft 6 in | 4 ft 5 in to 5 ft 1 in | 5 ft 10 in to 6 ft 2 in | 6 ft 2 in to 6 ft 7 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
Kids MTBSource:https://vitusbikes.com/products/vitus-nucleus-26-youth-hardtail-bike, https://us.vitusbikes.com/products/vitus-nucleus-29-vr-mountain-bike-blue, www.vitus.com