2018 Chromag Bikes Rootdown 27.5+ S

Build

650B/27.5 in × 3 in

Insights

Very upright 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
647mm
Reach
410mm
Stack to Reach Ratio
1.58:1
Seat Tube Length, C-T
394mm
Top Tube Length, Effective/Horizontal HT Top
578mm
Top Tube Slope
27.5deg
Head Tube Angle
65deg
Seat Tube Angle
75deg
Head Tube Length
95mm
Bottom Bracket Drop
51.2mm
Bottom Bracket Height
317mm
Chainstay Length
415mm
Chainstay Length Horizontal
411.8mm
Front-Center
738mm
Front-Center Horizontal
736.2mm
Wheelbase
1148mm
Fork Offset/Rake
51mm
Trail
115.4mm
very high
Mechanical Trail
104.6mm
Wheel Flop
44.2mm
Standover Height
687mm
Tire to Pedal Spindle Distance
With 170 mm cranks
199.8mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
147mm

27.5+ Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
3in
Tire Outer Diameter
736.4mm
Bike Length with Tires
1884.4mm
Handlebar Width
780mm
Stem Length
40mm
Suspension Type
Hardtail (Front suspension)
Bar Type
Flat Bar
Fork Travel
160mm
Suspension Sag
Unknown
Frame Material
Steel
Fork Material
Unknown
Brake Type
Disc
Source:http://www.chromagbikes.com/bikes/rootdown#geometry