2019 Chumba Cycles Stella Steel Steel (27.5" wheels) XL
Build
650B/27.5 in × 2.8 in
Insights
Somewhat upright stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Chumba Cycles Stella Steel
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 638mm |
| Reach | 443mm |
| Stack to Reach Ratio | 1.44:1 |
| Seat Tube Length, Unknown | 533.4mm |
| Top Tube Length, Effective/Horizontal Center | 645mm |
| Top Tube Slope | 12.1deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 51.5mm |
| Bottom Bracket Height | 311.6mm |
| Chainstay Length | 443mm |
| Chainstay Length Max | 463mm |
| Chainstay Length Horizontal | 440mm |
| Chainstay Length Horizontal Max | 460.1mm |
| Front-Center | 699.9mm |
| Front-Center Horizontal | 698mm |
| Wheelbase | 1138mm |
| Wheelbase Max | 1158mm |
| Fork Offset/Rake | 44.6mm |
| Trail | 81.3mm very high |
| Mechanical Trail | 76.6mm |
| Wheel Flop | 25.6mm |
| Standover Height | 850.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 166.8mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 141.6mm |
Steel (27.5" wheels) Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.8in |
| Tire Outer Diameter | 726.2mm |
| Bike Length with Tires | 1864.2mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Steel |
| Fork Material | Unknown |
| Brake Type | Disc |
| Features | Single-speed capable |
Source:https://www.chumbausa.com/stella-steel-mtb-geared-singlespeed-29er-27plus