2020 Tanke TF-291 Carbon 27.5 HT Boost

Design
Flat Bar, Hardtail (Front suspension)
Frame
Carbon/Composite
Features
Disc brake
Somewhat upright 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
Somewhat upright 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

13.5
15
17
19
Stack
602mm
609mm
620mm
635mm
Reach
377mm
385mm
396mm
412mm
Stack to Reach Ratio
1.6:1
1.58:1
1.57:1
1.54:1
Seat Tube Length, C-T
343mm
381mm
432mm
483mm
Top Tube Length, Effective/Horizontal HT Top
555mm
565mm
580mm
600mm
Top Tube Slope
29.9deg
26.3deg
21.6deg
17.4deg
Head Tube Angle
69.5deg
70deg
70.5deg
70.5deg
Seat Tube Angle
73.5deg
73.5deg
73.5deg
73.5deg
Head Tube Length
85mm
90mm
100mm
115mm
Bottom Bracket Drop
61mm
61mm
61mm
61mm
Bottom Bracket Height
290.7mm
290.7mm
290.7mm
290.7mm
Chainstay Length
440mm
440mm
440mm
440mm
Chainstay Length Horizontal
435.8mm
435.8mm
435.8mm
435.8mm
Front-Center
631.2mm
636.2mm
646.1mm
667mm
Front-Center Horizontal
628.3mm
633.3mm
643.3mm
664.3mm
Wheelbase
1064mm
1069mm
1079mm
1100mm
Fork Offset/Rake
46mm
46mm
46mm
46mm
Trail
82.4mm
very high
79.1mm
high
75.7mm
high
75.7mm
high
Mechanical Trail
77.2mm
74.3mm
71.4mm
71.4mm
Wheel Flop
27mm
25.4mm
23.8mm
23.8mm
Tire to Pedal Spindle
109.5mm
170 mm cranks
114.5mm
170 mm cranks
124.4mm
170 mm cranks
145.4mm
170 mm cranks
Pedal Spindle to Ground Clearance
120.7mm
170 mm cranks
120.7mm
170 mm cranks
120.7mm
170 mm cranks
120.7mm
170 mm cranks

Carbon 27.5 HT Boost Build

13.5
15
17
19
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
2.35in
2.35in
2.35in
2.35in
Tire Width Max
2.35in
2.35in
2.35in
2.35in
Tire Outer Diameter
703.4mm
703.4mm
703.4mm
703.4mm
Bike Length with Tires
1767.4mm
1772.4mm
1782.4mm
1803.4mm

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 Scale
Source:https://www.aliexpress.com/item/4001242319796.html?gps-id=pcStoreJustForYou&scm=1007.23125.137358.0&scm_id=1007.23125.137358.0&scm-url=1007.23125.137358.0&pvid=6cb6f36c-144e-4827-a541-73390407fe58&spm=a2g0o.store_home.smartJustForYou_944939710.0