2024 TWITTER Bikes R12 pro Base 54 XL
Build
700C/29 in × 25 mm
Insights
Somewhat upright stack and reach vs trend of performance road bikes
Design deviates from other sizes of TWITTER Bikes R12 pro
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 584mm |
| Reach | 389mm |
| Stack to Reach Ratio | 1.5:1 |
| Seat Tube Length, C-T | 540mm |
| Top Tube Length, Effective/Horizontal Center | 565mm |
| Top Tube Slope | 7.1deg |
| Head Tube Angle | 73.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 175mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 264mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 403.6mm |
| Front-Center | 602mm |
| Front-Center Horizontal | 608.4mm |
| Wheelbase | 1012mm |
| Fork Offset/Rake | 55mm |
| Trail | 42.2mm low |
| Mechanical Trail | 40.4mm |
| Wheel Flop | 11.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 96mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 94mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1684mm |
| Crank Length | 170mm |
| Handlebar Width | 400mm |
| Stem Length | 90mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 185 cm to 190 cm |
Source:https://twitterbikeusa.com/collections/road-bikes/products/r12-pro-wheeltop-24-speed-carbon-road-bike?_pos=1&_fid=746a45725&_ss=c