2025 Marin Bikes Rift Zone Base
- Category
- Full-suspension Trail MTB
- Design
- Flat Bar, Full suspension
- Frame
- Aluminum
- Suspension
- 140mm fork travel, 130mm rear travel
Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average 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 | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
XS | S | M (27.5) | M (29) | L | XL | |
Stack | 569.1mm | 600.7mm | 605.2mm | 637.3mm | 637.3mm | 641.8mm |
Reach | 415mm | 430mm | 450mm | 460mm | 485mm | 515mm |
Stack to Reach Ratio | 1.37:1 | 1.4:1 | 1.34:1 | 1.39:1 | 1.31:1 | 1.25:1 |
Seat Tube Length, C-T | 330mm | 390mm | 400mm | 400mm | 425mm | 430mm |
Top Tube Length, Effective/Horizontal Center | 552.6mm | 568.7mm | 589.7mm | 605mm | 632.1mm | 663.2mm |
Top Tube Slope | 26.8deg | 23.1deg | 21.8deg | 24.2deg | 21deg | 20deg |
Head Tube Angle | 65.5deg | 65.5deg | 65.5deg | 65.5deg | 65.5deg | 65.5deg |
Seat Tube Angle | 77deg | 77deg | 77deg | 77deg | 77deg | 77deg |
Head Tube Length | 115mm | 120mm | 125mm | 115mm | 125mm | 130mm |
Bottom Bracket Drop | 35mm | 35mm | 35mm | 35mm | 35mm | 35mm |
Bottom Bracket Height | 316.7mm | 316.7mm | 316.7mm | 335.7mm | 335.7mm | 335.7mm |
Chainstay Length | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 428.6mm | 428.6mm | 428.6mm | 428.6mm | 428.6mm | 428.6mm |
Front-Center | 720.1mm | 737.1mm | 759.1mm | 777.3mm | 806.6mm | 838.5mm |
Front-Center Horizontal | 719.2mm | 736.2mm | 758.3mm | 776.5mm | 805.8mm | 837.7mm |
Wheelbase | 1147.8mm | 1164.8mm | 1186.9mm | 1205.1mm | 1234.4mm | 1266.3mm |
Fork Offset/Rake | 44mm | 44mm | 44mm | 44mm | 44mm | 44mm |
Trail | 111.9mm very high | 111.9mm very high | 111.9mm very high | 120.6mm very high | 120.6mm very high | 120.6mm very high |
Mechanical Trail | 101.8mm | 101.8mm | 101.8mm | 109.7mm | 109.7mm | 109.7mm |
Wheel Flop | 42.2mm | 42.2mm | 42.2mm | 45.5mm | 45.5mm | 45.5mm |
Standover Height | 661.7mm | 677.8mm | 687.8mm | 691.2mm | 701.7mm | 700.5mm |
Tire to Pedal Spindle | 198.4mm 170 mm cranks | 215.4mm 170 mm cranks | 237.4mm 170 mm cranks | 236.6mm 170 mm cranks | 265.9mm 170 mm cranks | 297.8mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 146.7mm 170 mm cranks | 146.7mm 170 mm cranks | 146.7mm 170 mm cranks | 165.7mm 170 mm cranks | 165.7mm 170 mm cranks | 165.7mm 170 mm cranks |
Base Build
XS | S | M (27.5) | M (29) | L | XL | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.35in | 2.35in | 2.35in | 2.35in | 2.35in | 2.35in |
Tire Outer Diameter | 703.4mm | 703.4mm | 703.4mm | 741.4mm | 741.4mm | 741.4mm |
Bike Length with Tires | 1851.2mm | 1868.2mm | 1890.3mm | 1946.5mm | 1975.8mm | 2007.7mm |
Crank Length | 170mm | 170mm | 170mm | 170mm | 170mm | 170mm |
Handlebar Width | 780mm | 780mm | 780mm | 780mm | 780mm | 780mm |
Stem Length | 35mm | 35mm | 35mm | 35mm | 35mm | 35mm |
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 Trail MTBSource:https://www.marinbikes.com/au/bikes/2025-rift-zone-1-2#geometry