2019 Chumba Cycles Stella Steel Steel (29" wheels)
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Steel
- Suspension
- 100mm fork travel
- Features
- Disc brake, Single-speed capable
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 | Somewhat upright 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 | 313.7mm | 319.2mm | 319.2mm | 319.2mm | 319.2mm |
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 | 84.2mm very high | 86.1mm very high | 88.1mm very high | 89mm very high | 84mm very high |
Mechanical Trail | 78.8mm | 80.9mm | 82.8mm | 83.7mm | 79.1mm |
Wheel Flop | 27.6mm | 27.7mm | 28.3mm | 28.6mm | 26.4mm |
Standover Height | 647.7mm | 730.3mm | 768.4mm | 800.1mm | 850.9mm |
Tire to Pedal Spindle | 122.2mm 170 mm cranks | 110.4mm 170 mm cranks | 130.3mm 170 mm cranks | 149.2mm 170 mm cranks | 159.2mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 143.7mm 170 mm cranks | 149.2mm 170 mm cranks | 149.2mm 170 mm cranks | 149.2mm 170 mm cranks | 149.2mm 170 mm cranks |
Steel (29" wheels) Build
XS | SM | MD | LG | XL | |
Wheel Size | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.35in | 2.35in | 2.35in | 2.35in | 2.35in |
Tire Width Max | 2.6in | 2.6in | 2.6in | 2.6in | 2.6in |
Tire Outer Diameter | 703.4mm | 741.4mm | 741.4mm | 741.4mm | 741.4mm |
Bike Length with Tires | 1764.4mm | 1830.4mm | 1850.4mm | 1869.4mm | 1879.4mm |
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 Cross-country MTBSource:https://www.chumbausa.com/stella-steel-mtb-geared-singlespeed-29er-27plus