2020 RSD Bikes Middlechild 27.5+ AL Small

Build

650B/27.5 in × 2.8 in

Insights

Average stack and reach vs trend of hardtail all-mountain/enduro mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
610mm
Reach
411mm
Stack to Reach Ratio
1.48:1
Seat Tube Length, C-T
410mm
Top Tube Length, Effective/Horizontal HT Top
586mm
Top Tube Length, Actual C-C
550mm
Top Tube Slope
22.4deg
Head Tube Angle
64.5deg
Seat Tube Angle
74deg
Head Tube Length
100mm
Bottom Bracket Drop
43.1mm
Bottom Bracket Height
320mm
Chainstay Length
415mm
Chainstay Length Horizontal
412.8mm
Front-Center
757.5mm
Front-Center Horizontal
756.3mm
Wheelbase
1169mm
Fork Offset/Rake
51mm
Fork Length, Unknown
550mm
Trail
116.7mm
very high
Mechanical Trail
105.3mm
Wheel Flop
45.3mm
Standover Height
695mm
Tire to Pedal Spindle Distance
With 175 mm cranks
219.4mm
Pedal Spindle to Ground Clearance
With 175 mm cranks
145mm

27.5+ AL Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
2.8in
Tire Outer Diameter
726.2mm
Bike Length with Tires
1895.2mm
Crank Length
175mm
Handlebar Width
780mm
Stem Length
50mm
Suspension Type
Hardtail (Front suspension)
Bar Type
Flat Bar
Fork Travel
140mm
Suspension Sag
Unknown
Frame Material
Aluminum
Fork Material
Unknown
Brake Type
Disc

Published Sizing Recommendations

Height
5 ft 2 in
to
5 ft 7 in
Source:https://rsdbikes.com/portfolio/middlechild-aluminum/