2023 MC4+ Proper Engineering Mountain Coaster Frame Base Mlarge
Build
700C/29 in × 2.8 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail trail mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Bar type unusual for category
This: Moto/Klunker/Riser Bar
Category: Flat Bar
vs hardtail trail mtb bikesCategory: Flat Bar
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 604mm |
| Reach | 462mm |
| Stack to Reach Ratio | 1.31:1 |
| Seat Tube Length, Unknown | 471mm |
| Top Tube Length, Effective/Horizontal Unknown | 622mm |
| Top Tube Slope | 14.3deg |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 49mm |
| Bottom Bracket Height | 333.1mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 422.2mm |
| Front-Center | 724.5mm |
| Front-Center Horizontal | 722.8mm |
| Wheelbase | 1145mm |
| Fork Offset/Rake | 44.6mm |
| Fork Length (Axle-To-Crown) | 480mm |
| Trail | 98.9mm very high |
| Mechanical Trail | 92.3mm |
| Wheel Flop | 33.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 172.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 163.1mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.8in |
| Tire Outer Diameter | 764.2mm |
| Bike Length with Tires | 1909.2mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Moto/Klunker/Riser Bar |
| Fork Travel | 120mm |
| Suspension Sag | Unknown |
| Frame Material | Steel |
| Fork Material | Unknown |
| Brake Type | N/A |
| Features | Single-speed capable |
Source:https://www.ratherproper.com/store/p19/MC4Plus.html