2021 Rocky Mountain Altitude Carbon 70 S (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 | 601mm |
| Reach | 423mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, Effective Unknown | 380mm |
| Top Tube Length, Effective/Horizontal Unknown | 580mm |
| Head Tube Angle | 100deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 20mm |
| Bottom Bracket Height | 335.5mm |
| Chainstay Length | 428mm |
| Chainstay Length Max | 439mm |
| Chainstay Length Horizontal | 427.5mm |
| Chainstay Length Horizontal Max | 438.5mm |
| Front-Center | 744.7mm |
| Front-Center Horizontal | 744.5mm |
| Wheelbase | 1172mm |
| Wheelbase Max | 1183mm |
| Fork Offset/Rake | 417.5mm |
| Trail | -486.6mm |
| Mechanical Trail | -479.2mm |
| Wheel Flop | 83.2mm |
| Standover Height | 767mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 219.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 165.5mm |
Carbon 70 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.5in |
| Tire Outer Diameter | 711mm |
| Bike Length with Tires | 1883mm |
| 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/