2021 Rocky Mountain Altitude Carbon 70 M(27.5)
Build
650B/27.5 in × 2.5 in
Insights
Average stack and reach vs trend of full-suspension all-mountain/enduro mtb bikes
Design deviates from other sizes of Rocky Mountain Altitude
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 610mm |
| Reach | 449mm |
| Stack to Reach Ratio | 1.36:1 |
| Seat Tube Length, Effective Unknown | 420mm |
| Top Tube Length, Effective/Horizontal Unknown | 607mm |
| Head Tube Angle | 110deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 19mm |
| Bottom Bracket Height | 336.5mm |
| Chainstay Length | 428mm |
| Chainstay Length Max | 439mm |
| Chainstay Length Horizontal | 427.6mm |
| Chainstay Length Horizontal Max | 438.6mm |
| Front-Center | 773.7mm |
| Front-Center Horizontal | 773.4mm |
| Wheelbase | 1201mm |
| Wheelbase Max | 1212mm |
| Fork Offset/Rake | 507mm |
| Trail | -668.9mm |
| Mechanical Trail | -628.6mm |
| Wheel Flop | 215mm |
| Standover Height | 797mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 248.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 166.5mm |
Carbon 70 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.5in |
| Tire Outer Diameter | 711mm |
| Bike Length with Tires | 1912mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 170mm |
| Rear Travel | 160mm |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://geometrygeeks.bike/bike/rocky-mountain-altitude-2021/