2021 RSD Bikes MiddleChild V2 27.5+
- Category
- Hardtail All-mountain/Enduro MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Suspension
- 140mm fork travel
- Features
- Disc brake
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 aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
Small | Medium | Large | XL | |
Stack | 610mm | 619mm | 619mm | 629mm |
Reach | 411mm | 448mm | 465mm | 489mm |
Stack to Reach Ratio | 1.48:1 | 1.38:1 | 1.33:1 | 1.29:1 |
Seat Tube Length, C-T | 390mm | 410mm | 440mm | 470mm |
Top Tube Length, Effective/Horizontal Center | 586mm | 625mm | 642mm | 669mm |
Top Tube Length, Actual C-C | 550mm | 586mm | 604mm | 631mm |
Head Tube Angle | 64.5deg | 64.5deg | 64.5deg | 64.5deg |
Effective Seat Tube Angle, Unknown | 74deg | 74deg | 74deg | 74deg |
Head Tube Length | 100mm | 110mm | 110mm | 120mm |
Bottom Bracket Drop | 40mm | 40mm | 40mm | 40mm |
Bottom Bracket Height | 323.1mm | 323.1mm | 323.1mm | 323.1mm |
Chainstay Length Max | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 415mm | 415mm | 415mm | 415mm |
Chainstay Length Horizontal Max | 428.1mm | 428.1mm | 428.1mm | 428.1mm |
Front-Center | 755.1mm | 772mm | 789mm | 802mm |
Front-Center Horizontal | 754mm | 771mm | 788mm | 801mm |
Wheelbase | 1169mm | 1186mm | 1203mm | 1216mm |
Wheelbase Max | 1184mm | 1201mm | 1218mm | 1231mm |
Fork Offset/Rake | 51mm | 51mm | 51mm | 51mm |
Fork Length (Axle-To-Crown) | 551mm | 551mm | 551mm | 551mm |
Trail | 116.7mm very high | 116.7mm very high | 116.7mm very high | 116.7mm very high |
Mechanical Trail | 105.3mm | 105.3mm | 105.3mm | 105.3mm |
Wheel Flop | 45.3mm | 45.3mm | 45.3mm | 45.3mm |
Standover Height | 685mm | 696mm | 698mm | 710mm |
Tire to Pedal Spindle | 221.9mm 170 mm cranks | 238.9mm 170 mm cranks | 255.9mm 170 mm cranks | 268.9mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 153.1mm 170 mm cranks | 153.1mm 170 mm cranks | 153.1mm 170 mm cranks | 153.1mm 170 mm cranks |
27.5+ Build
Small | Medium | Large | XL | |
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 | 2.8in | 2.8in | 2.8in | 2.8in |
Tire Outer Diameter | 726.2mm | 726.2mm | 726.2mm | 726.2mm |
Bike Length with Tires | 1895.2mm | 1912.2mm | 1929.2mm | 1942.2mm |
Published Sizing Recommendations
Height | 155 cm to 170 cm | 170 cm to 178 cm | 178 cm to 185 cm | 185 cm to 195 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 All-mountain/Enduro MTBSource:https://rsdbikes.com/middlechild-v2-aluminum/