2020 Tanke TF-291 Carbon 27.5 HT Boost 13.5
Build
650B/27.5 in × 2.35 in
Insights
Somewhat upright stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Tanke TF-291
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 602mm |
| Reach | 377mm |
| Stack to Reach Ratio | 1.6:1 |
| Seat Tube Length, C-T | 343mm |
| Top Tube Length, Effective/Horizontal HT Top | 555mm |
| Top Tube Slope | 29.9deg |
| Head Tube Angle | 69.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 85mm |
| Bottom Bracket Drop | 61mm |
| Bottom Bracket Height | 290.7mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 435.8mm |
| Front-Center | 631.2mm |
| Front-Center Horizontal | 628.3mm |
| Wheelbase | 1064mm |
| Fork Offset/Rake | 46mm |
| Trail | 82.4mm very high |
| Mechanical Trail | 77.2mm |
| Wheel Flop | 27mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 109.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 120.7mm |
Carbon 27.5 HT Boost Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.35in |
| Tire Outer Diameter | 703.4mm |
| Bike Length with Tires | 1767.4mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | Unknown |
| Brake Type | Disc |
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