2019 Budnitz Bicycles Alpha Base
- Category
- Commuter
- Design
- Flat Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Disc brake, Frame couplers
Geometry
S | M | L | |
Stack | 575.9mm | 601.6mm | 622.5mm |
Reach | 401.1mm | 421mm | 436.8mm |
Stack to Reach Ratio | 1.44:1 | 1.43:1 | 1.43:1 |
Seat Tube Length, C-T | 470mm | 495mm | 512mm |
Top Tube Length, Effective/Horizontal HT Top | 573mm | 602.8mm | 638mm |
Head Tube Angle | 72deg | 72.5deg | 73deg |
Seat Tube Angle | 70.2deg | 70.2deg | 69.4deg |
Head Tube Length | 130mm | 155mm | 175mm |
Bottom Bracket Drop | 72mm | 72mm | 72mm |
Bottom Bracket Height | 274mm | 274mm | 274mm |
Chainstay Length | 424mm | 424mm | 424mm |
Chainstay Length Horizontal | 417.8mm | 417.8mm | 417.8mm |
Front-Center | 616.4mm | 639.2mm | 656.1mm |
Front-Center Horizontal | 612.2mm | 635.2mm | 652.2mm |
Wheelbase | 1030mm | 1053mm | 1070mm |
Fork Offset/Rake | 45mm | 45mm | 45mm |
Fork Length (Axle-To-Crown) | 397mm | 397mm | 397mm |
Trail | 65.1mm high | 61.9mm mid/neutral | 58.7mm mid/neutral |
Mechanical Trail | 61.9mm | 59mm | 56.2mm |
Wheel Flop | 19.1mm | 17.8mm | 16.4mm |
Standover Height | 703mm | 723mm | 810mm |
Tire to Pedal Spindle | 100.4mm 170 mm cranks | 123.2mm 170 mm cranks | 140.1mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 104mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks |
Base Build
S | M | L | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 35mm | 35mm | 35mm |
Tire Outer Diameter | 692mm | 692mm | 692mm |
Bike Length with Tires | 1722mm | 1745mm | 1762mm |
Published Sizing Recommendations
Height | 5 ft 1 in to 5 ft 5 in | 5 ft 6 in to 5 ft 9 in | 5 ft 10 in to 6 ft 2 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
CommuterSource:https://geometrygeeks.bike/bike/budnitz-alpha-2019/