2025 Marin Bikes Rift Zone Base S
Build
650B/27.5 in × 2.35 in
Insights
Average stack and reach vs trend of full-suspension trail mtb bikes
Design deviates from other sizes of Marin Bikes Rift Zone
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 600.7mm |
| Reach | 430mm |
| Stack to Reach Ratio | 1.4:1 |
| Seat Tube Length, C-T | 390mm |
| Top Tube Length, Effective/Horizontal Center | 568.7mm |
| Top Tube Slope | 23.1deg |
| Head Tube Angle | 65.5deg |
| Seat Tube Angle | 77deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 35mm |
| Bottom Bracket Height | 316.7mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 428.6mm |
| Front-Center | 737.1mm |
| Front-Center Horizontal | 736.2mm |
| Wheelbase | 1164.8mm |
| Fork Offset/Rake | 44mm |
| Trail | 111.9mm very high |
| Mechanical Trail | 101.8mm |
| Wheel Flop | 42.2mm |
| Standover Height | 677.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 215.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 146.7mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.35in |
| Tire Outer Diameter | 703.4mm |
| Bike Length with Tires | 1868.2mm |
| Crank Length | 170mm |
| Handlebar Width | 780mm |
| Stem Length | 35mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 140mm |
| Rear Travel | 130mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://www.marinbikes.com/au/bikes/2025-rift-zone-1-2#geometry