2026 RFRP Fat Man Prototype
- Category
- Rigid MTB
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
Custom | |
Stack | 623mm |
Reach | 420mm |
Stack to Reach Ratio | 1.48:1 |
Seat Tube Length, Unknown | 460mm |
Top Tube Length, Actual C-C | 568mm |
Head Tube Angle | 68deg |
Effective Seat Tube Angle, ETT HT Top | 73.5deg |
Head Tube Length | 90mm |
Bottom Bracket Drop | 100mm |
Bottom Bracket Height | 304mm |
Chainstay Length | 465mm |
Chainstay Length Horizontal | 454.1mm |
Front-Center | 688.2mm |
Front-Center Horizontal | 680.9mm |
Wheelbase | 1135mm |
Fork Offset/Rake | 44mm |
Fork Length (Axle-To-Crown) | 490mm |
Trail | 115.8mm very high |
Mechanical Trail | 107.3mm |
Wheel Flop | 40.2mm |
Tire to Pedal Spindle | 124.2mm 160 mm cranks |
Pedal Spindle to Ground Clearance | 144mm 160 mm cranks |
Prototype Build
Custom | |
Wheel Size | 686mm BSD 686 mm BSD |
Tire Width | 2.4in |
Tire Outer Diameter | 808mm |
Bike Length with Tires | 1943mm |
Crank Length | 160mm |
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
Rigid MTBSource:n/a