2021 Rocky Mountain Instinct Base MD
Build
700C/29 in × 2.5 in
Insights
Average stack and reach vs trend of full-suspension trail mtb bikes
Design deviates from other sizes of Rocky Mountain Instinct
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 619mm |
| Reach | 456mm |
| Stack to Reach Ratio | 1.36:1 |
| Seat Tube Length, Unknown | 420mm |
| Top Tube Length, Effective/Horizontal Unknown | 609mm |
| Top Tube Slope | 20.8deg |
| Head Tube Angle | 65.1deg |
| Seat Tube Angle | 76.1deg |
| Head Tube Length | 95mm |
| Bottom Bracket Drop | 43mm |
| Bottom Bracket Height | 331.5mm |
| Chainstay Length | 438mm |
| Chainstay Length Horizontal | 435.9mm |
| Front-Center | 775.3mm |
| Front-Center Horizontal | 774.1mm |
| Wheelbase | 1210mm |
| Fork Offset/Rake | 46mm |
| Fork Length, Unknown | 150mm |
| Trail | 123.1mm very high |
| Mechanical Trail | 111.7mm |
| Wheel Flop | 47mm |
| Standover Height | 798mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 230.8mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 161.5mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.5in |
| Tire Outer Diameter | 749mm |
| Bike Length with Tires | 1959mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 150mm |
| Rear Travel | 140mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://www.bikes.com/en/bikes/instinct/2021, https://bikes.com/collections/instinct/products/instinct-a50-22