2026 Ron's Bikes ALUMAX II Base S
Build
700C/29 in × 53 mm
Insights
Somewhat upright stack and reach vs trend of progressive gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 575mm |
| Reach | 395mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, C-T | 445mm |
| Top Tube Length, Effective/Horizontal Center | 557mm |
| Top Tube Slope | 15.9deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 122mm |
| Bottom Bracket Drop | 80mm |
| Bottom Bracket Height | 284mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 427.6mm |
| Front-Center | 628mm |
| Front-Center Horizontal | 623.4mm |
| Wheelbase | 1051mm |
| Fork Offset/Rake | 50mm |
| Fork Length (Axle-To-Crown) | 413mm |
| Trail | 75.9mm high |
| Mechanical Trail | 71.5mm |
| Wheel Flop | 23.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 94mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 114mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 53mm |
| Tire Outer Diameter | 728mm |
| Bike Length with Tires | 1779mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://ronsbikes.com/products/aluminus-maximus