1989 Miyata Touring 618GT 46
Build
700C/29 in × 32 mm
Insights
Design deviates from other sizes of Miyata Touring
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Top Tube Length, Effective/Horizontal Unknown | 500mm |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 72deg |
| Bottom Bracket Drop | 70.4mm |
| Bottom Bracket Height | 272.6mm |
| Chainstay Length | 445mm |
| Chainstay Length Horizontal | 439.4mm |
| Front-Center | 565mm |
| Front-Center Horizontal | 560.6mm |
| Wheelbase | 1000mm |
| Fork Offset/Rake | 60mm |
| Trail | 48.4mm mid/neutral |
| Mechanical Trail | 46mm |
| Wheel Flop | 14.2mm |
| Tire to Pedal Spindle Distance With 172 mm cranks | 50mm |
| Pedal Spindle to Ground Clearance With 172 mm cranks | 100.6mm |
618GT Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 32mm |
| Tire Outer Diameter | 686mm |
| Bike Length with Tires | 1686mm |
| Crank Length | 172mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:http://www.peterbrueggeman.com/cr/miyata-1989.pdf