2019 Chumba Cycles Stella Steel Steel (27.5" wheels)

Design
Flat Bar, Hardtail (Front suspension)
Frame
Steel
Fork
100mm travel
Features
Disc brake, Single-speed capable
Somewhat aggressive 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
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
Average stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Geometry

XS
SM
MD
LG
XL
Stack
582mm
607mm
618mm
626mm
638mm
Reach
392mm
398mm
416mm
433mm
443mm
Stack to Reach Ratio
1.48:1
1.53:1
1.49:1
1.45:1
1.44:1
Seat Tube Length, Unknown
342.9mm
381mm
431.8mm
482.6mm
533.4mm
Top Tube Length, Effective/Horizontal Center
560mm
585mm
605mm
625mm
645mm
Top Tube Slope
27.4deg
25.5deg
20.7deg
16deg
12.1deg
Head Tube Angle
69.5deg
70deg
70deg
70deg
70.5deg
Seat Tube Angle
74deg
73deg
73deg
73deg
72.5deg
Head Tube Length
100mm
90mm
100mm
110mm
120mm
Bottom Bracket Drop
38mm
51.5mm
51.5mm
51.5mm
51.5mm
Bottom Bracket Height
312.6mm
311.6mm
311.6mm
311.6mm
311.6mm
Chainstay Length
420mm
443mm
443mm
443mm
443mm
Chainstay Length Max
440mm
463mm
463mm
463mm
463mm
Chainstay Length Horizontal
418.3mm
440mm
440mm
440mm
440mm
Chainstay Length Horizontal Max
438.4mm
460.1mm
460.1mm
460.1mm
460.1mm
Front-Center
643.8mm
651mm
671mm
689.9mm
699.9mm
Front-Center Horizontal
642.7mm
649mm
669mm
688mm
698mm
Wheelbase
1061mm
1089mm
1109mm
1128mm
1138mm
Wheelbase Max
1081mm
1109mm
1129mm
1148mm
1158mm
Fork Offset/Rake
44.3mm
45.9mm
44mm
43.1mm
44.6mm
Trail
83.8mm
very high
83.4mm
very high
85.4mm
very high
86.3mm
very high
81.3mm
very high
Mechanical Trail
78.5mm
78.3mm
80.2mm
81.1mm
76.6mm
Wheel Flop
27.5mm
26.8mm
27.4mm
27.7mm
25.6mm
Standover Height
647.7mm
730.3mm
768.4mm
800.1mm
850.9mm
Tire to Pedal Spindle
123.2mm
170 mm cranks
117.9mm
170 mm cranks
137.9mm
170 mm cranks
156.8mm
170 mm cranks
166.8mm
170 mm cranks
Pedal Spindle to Ground Clearance
142.6mm
170 mm cranks
141.6mm
170 mm cranks
141.6mm
170 mm cranks
141.6mm
170 mm cranks
141.6mm
170 mm cranks

Steel (27.5" wheels) Build

XS
SM
MD
LG
XL
Wheel Size
26"
559 mm BSD
650B/27.5
584 mm BSD
650B/27.5
584 mm BSD
650B/27.5
584 mm BSD
650B/27.5
584 mm BSD
Tire Width
2.8in
2.8in
2.8in
2.8in
2.8in
Tire Width Max
2.8in
2.8in
2.8in
2.8in
2.8in
Tire Outer Diameter
701.2mm
726.2mm
726.2mm
726.2mm
726.2mm
Bike Length with Tires
1762.2mm
1815.2mm
1835.2mm
1854.2mm
1864.2mm

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 Scale
Source:https://www.chumbausa.com/stella-steel-mtb-geared-singlespeed-29er-27plus