2020 Alchemy Bicycles E-Ronin Base
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake, E-bike
Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Average stack and reachvs category | Somewhat aggressive stack and reachvs category |
Geometry
54 | 54 | 56cm | 56cm | 56cm | 58cm | 61cm | |
Stack | 562mm | 562mm | 584mm | 584mm | 584mm | 604mm | 624mm |
Reach | 388mm | 388mm | 393mm | 393mm | 393mm | 399mm | 418mm |
Stack to Reach Ratio | 1.45:1 | 1.45:1 | 1.49:1 | 1.49:1 | 1.49:1 | 1.51:1 | 1.49:1 |
Seat Tube Length, C-T | 525mm | 525mm | — | — | 545mm | 565mm | 580mm |
Seat Tube Length, Unknown | — | 525mm | 545mm | 545mm | 545mm | 565mm | 580mm |
Top Tube Length, Effective/Horizontal Unknown | 549mm | 549mm | 563mm | 563mm | 563mm | 575mm | 601mm |
Top Tube Slope | 6.1deg | 6.1deg | 6.4deg | 6.4deg | 6.4deg | 6.4deg | 6.6deg |
Head Tube Angle | 71deg | 71deg | 71deg | 71deg | 71deg | 71deg | 71deg |
Seat Tube Angle | 74deg | 74deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg |
Head Tube Length | 140mm | 140mm | 160mm | 160mm | 160mm | 180mm | 200mm |
Bottom Bracket Drop | 70mm | 70mm | 70mm | 70mm | 70mm | 70mm | 70mm |
Bottom Bracket Height | 279mm | 279mm | 283mm | 283mm | 283mm | 283mm | 283mm |
Chainstay Length | 425mm | 425mm | 425mm | 425mm | 425mm | 425mm | 425mm |
Chainstay Length Horizontal | 419.2mm | 419.2mm | 419.2mm | 419.2mm | 419.2mm | 419.2mm | 419.2mm |
Front-Center | 605mm | 605mm | 610mm | 610mm | 610mm | 620mm | 645mm |
Front-Center Horizontal | 600.8mm | 600.8mm | 610.8mm | 610.8mm | 610.8mm | 615.8mm | 640.8mm |
Wheelbase | 1020mm | 1020mm | 1030mm | 1030mm | 1030mm | 1035mm | 1060mm |
Fork Offset/Rake | 41mm | 55mm | 55mm | 55mm | 55mm | 55mm | 55mm |
Trail | 76.8mm high | 62mm mid/​neutral | 63.4mm mid/​neutral | 63.4mm mid/​neutral | 63.4mm mid/​neutral | 63.4mm mid/​neutral | 63.4mm mid/​neutral |
Mechanical Trail | 72.6mm | 58.6mm | 59.9mm | 59.9mm | 59.9mm | 59.9mm | 59.9mm |
Wheel Flop | 23.6mm | 19.1mm | 19.5mm | 19.5mm | 19.5mm | 19.5mm | 19.5mm |
Standover Height | 780mm | 780mm | 800mm | 800mm | 800mm | 820mm | 840mm |
Tire to Pedal Spindle | 86mm 170 mm cranks | 86mm 170 mm cranks | 87mm 170 mm cranks | 87mm 170 mm cranks | 87mm 170 mm cranks | 97mm 170 mm cranks | 117mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 109mm 170 mm cranks | 109mm 170 mm cranks | 113mm 170 mm cranks | 113mm 170 mm cranks | 113mm 170 mm cranks | 113mm 170 mm cranks | 108mm 175 mm cranks |
Base Build
54 | 54 | 56cm | 56cm | 56cm | 58cm | 61cm | |
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 | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 38mm | 38mm | 42mm | 42mm | 42mm | 42mm | 42mm |
Tire Outer Diameter | 698mm | 698mm | 706mm | 706mm | 706mm | 706mm | 706mm |
Bike Length with Tires | 1718mm | 1718mm | 1736mm | 1736mm | 1736mm | 1741mm | 1766mm |
Crank Length | — | — | 170mm | 170mm | 170mm | 170mm | 175mm |
Handlebar Width | — | — | — | — | 420mm | 420mm | 440mm |
Stem Length | — | — | — | — | 100mm | 110mm | 110mm |
Published Sizing Recommendations
Height | 5 ft 6 in to 5 ft 9 in | 5 ft 6 in to 5 ft 9 in | — | — | — | — | — |
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
All-road/GravelSource:https://alchemybikes.com/products/eronin-ebike