2017 HongFu Bikes FM258 Base
- Design
- Flat Bar, Full suspension
- Frame
- Carbon/Composite
- Suspension
- 100mm fork travel, 100mm rear travel
Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
15.5" | 17.5" | 19" | 21 | |
Stack | 588.6mm | 584.4mm | 593.9mm | 602.8mm |
Reach | 399mm | 432mm | 456.8mm | 488.2mm |
Stack to Reach Ratio | 1.48:1 | 1.35:1 | 1.3:1 | 1.23:1 |
Seat Tube Length, C-T | 406mm | 445mm | 483mm | 520mm |
Top Tube Length, Effective/Horizontal HT Top | 568mm | 600mm | 627mm | 661mm |
Head Tube Angle | 69deg | 69deg | 69deg | 69deg |
Effective Seat Tube Angle, ETT HT Top | 74deg | 74deg | 74deg | 74deg |
Head Tube Length | 95mm | 95mm | 106mm | 115mm |
Bottom Bracket Drop | 50.7mm | 50.6mm | 51mm | 50.9mm |
Bottom Bracket Height | 317.5mm | 317.6mm | 317.2mm | 317.3mm |
Chainstay Length | 435mm | 435mm | 435mm | 435mm |
Chainstay Length Horizontal | 432mm | 432.1mm | 432mm | 432mm |
Front-Center | 662.2mm | 693.9mm | 721.8mm | 756.5mm |
Front-Center Horizontal | 660.3mm | 692.1mm | 720mm | 754.8mm |
Wheelbase | 1092.3mm | 1124.1mm | 1152mm | 1186.8mm |
Fork Offset/Rake | 51mm | 51mm | 51mm | 51mm |
Fork Length (Axle-To-Crown) | 500mm | 500mm | 500mm | 500mm |
Trail | 86.7mm very high | 86.7mm very high | 86.7mm very high | 86.7mm very high |
Mechanical Trail | 80.9mm | 80.9mm | 80.9mm | 80.9mm |
Wheel Flop | 29mm | 29mm | 29mm | 29mm |
Tire to Pedal Spindle | 124.1mm 170 mm cranks | 155.8mm 170 mm cranks | 183.7mm 170 mm cranks | 218.4mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 147.5mm 170 mm cranks | 147.6mm 170 mm cranks | 147.2mm 170 mm cranks | 147.3mm 170 mm cranks |
Base Build
15.5" | 17.5" | 19" | 21 | |
Wheel Size | 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 | 2.25in | 2.25in | 2.25in | 2.25in |
Tire Outer Diameter | 736.3mm | 736.3mm | 736.3mm | 736.3mm |
Bike Length with Tires | 1828.6mm | 1860.4mm | 1888.3mm | 1923.1mm |
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
Full-suspension Cross-country MTBSource:http://www.hongfu-bikes.com/html_Products/Mountain_Frame/29ER_Mountain_Frame/2017/0622/482.html