2023 Rock Machine Catherine Catherine 70-27
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Suspension
- 100mm fork travel
- Features
- Disc brake
Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
13.5" (XS) | 15.0" (S) | 17.0" (M) | 19.0" (L) | |
Stack | 567mm | 586mm | 593mm | 603mm |
Reach | 374mm | 384mm | 401mm | 419mm |
Stack to Reach Ratio | 1.52:1 | 1.53:1 | 1.48:1 | 1.44:1 |
Seat Tube Length, C-T | 343mm | 381mm | 431mm | 483mm |
Top Tube Length, Effective/Horizontal HT Top | 545mm | 560mm | 580mm | 600mm |
Top Tube Slope | 26.8deg | 24.2deg | 19deg | 14.1deg |
Head Tube Angle | 69deg | 69deg | 69deg | 69deg |
Seat Tube Angle | 73.5deg | 73.5deg | 73.5deg | 73.5deg |
Head Tube Length | 90mm | 110mm | 120mm | 130mm |
Bottom Bracket Drop | 41mm | 41mm | 41mm | 41mm |
Bottom Bracket Height | 301.8mm | 301.8mm | 301.8mm | 301.8mm |
Chainstay Length | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 428mm | 428mm | 428mm | 428mm |
Front-Center | 617.3mm | 634.3mm | 660.2mm | 681.2mm |
Front-Center Horizontal | 616mm | 633mm | 659mm | 680mm |
Wheelbase | 1044mm | 1061mm | 1087mm | 1108mm |
Fork Offset/Rake | 37.4mm | 37.1mm | 43mm | 42.2mm |
Trail | 91.5mm very high | 91.8mm very high | 85.5mm very high | 86.4mm very high |
Mechanical Trail | 85.5mm | 85.7mm | 79.8mm | 80.6mm |
Wheel Flop | 30.6mm | 30.7mm | 28.6mm | 28.9mm |
Tire to Pedal Spindle | 104.5mm 170 mm cranks | 121.5mm 170 mm cranks | 147.4mm 170 mm cranks | 163.4mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 131.8mm 170 mm cranks | 131.8mm 170 mm cranks | 131.8mm 170 mm cranks | 126.8mm 175 mm cranks |
Catherine 70-27 Build
13.5" (XS) | 15.0" (S) | 17.0" (M) | 19.0" (L) | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 2in | 2in | 2in | 2in |
Tire Outer Diameter | 685.6mm | 685.6mm | 685.6mm | 685.6mm |
Bike Length with Tires | 1729.6mm | 1746.6mm | 1772.6mm | 1793.6mm |
Crank Length | 170mm | 170mm | 170mm | 175mm |
Handlebar Width | 660mm | 660mm | 680mm | 680mm |
Stem Length | 45mm | 45mm | 60mm | 60mm |
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
Hardtail Cross-country MTBSource:https://archive.rockmachinebikes.com/en/2021/mountain-hardtail/catherine-70-27/gloss-dark-blue-pink-silver