2018 Rocky Mountain RC 70 Base
- Category
- Fitness
- Design
- Flat Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
Geometry
Xs | S | M | L | Xl | |
Stack | 527mm | 543mm | 575mm | 609mm | 630mm |
Reach | 379mm | 394mm | 400mm | 408mm | 422mm |
Stack to Reach Ratio | 1.39:1 | 1.38:1 | 1.44:1 | 1.49:1 | 1.49:1 |
Seat Tube Length, Effective HT Top | 380mm | 430mm | 480mm | 535mm | 560mm |
Top Tube Length, Actual C-C | 530mm | 555mm | 570mm | 595mm | 615mm |
Head Tube Angle | 70deg | 70.5deg | 71deg | 72deg | 72.5deg |
Seat Tube Angle | 74deg | 73.5deg | 73.5deg | 73deg | 73deg |
Head Tube Length | 115mm | 130mm | 160mm | 195mm | 215mm |
Bottom Bracket Drop | 70mm | 70mm | 70mm | 69mm | 69mm |
Bottom Bracket Height | 269mm | 269mm | 269mm | 270mm | 270mm |
Wheelbase | 1017mm | 1034mm | 1045mm | 1061mm | 1076mm |
Trail | — — | — — | — — | — — | — — |
Mechanical Trail | — | — | — | — | — |
Wheel Flop | — | — | — | — | — |
Pedal Spindle to Ground Clearance | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 100mm 170 mm cranks | 100mm 170 mm cranks |
Base Build
Xs | S | M | L | Xl | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 28mm | 28mm | 28mm | 28mm | 28mm |
Tire Outer Diameter | 678mm | 678mm | 678mm | 678mm | 678mm |
Bike Length with Tires | 1695mm | 1712mm | 1723mm | 1739mm | 1754mm |
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
FitnessSource:https://resources.bikes.com/en/bikes/rc/2018