2021 Marin Bikes Alpine Trail xr XL
Build
700C/29 in × 2.4 in
Insights
Average stack and reach vs trend of full-suspension all-mountain/enduro mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 643mm |
| Reach | 515mm |
| Stack to Reach Ratio | 1.25:1 |
| Seat Tube Length, Unknown | 430mm |
| Top Tube Length, Actual C-C | 652mm |
| Top Tube Slope | 20.2deg |
| Head Tube Angle | 63.5deg |
| Seat Tube Angle | 78deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | -33863mm |
| Bottom Bracket Height | 34235mm |
| Chainstay Length | 430mm |
| Wheelbase | 1297mm |
| Trail | — — |
| Standover Height | 734mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | — |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 34065mm |
xr Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.4in |
| Tire Outer Diameter | 743.9mm |
| Bike Length with Tires | 2040.9mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | Unknown |
| Rear Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Disc |
Source:https://www.vitalmtb.com/product/guide/Bikes,3/Marin/Alpine-Trail-XR,31549