2020 Norco Bicycles Threshold A1 53
Build
700C/29 in × 35 mm
Insights
Average stack and reach vs trend of cyclocross bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 553mm |
| Reach | 379mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, C-T | 530mm |
| Top Tube Length, Effective/Horizontal HT Top | 537.5mm |
| Top Tube Slope | 4.7deg |
| Head Tube Angle | 71.25deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 276mm |
| Chainstay Length | 422.5mm |
| Chainstay Length Horizontal | 416.7mm |
| Front-Center | 597.5mm |
| Front-Center Horizontal | 593.3mm |
| Wheelbase | 1010mm |
| Fork Offset/Rake | 48mm |
| Fork Length (On-Axis) | 395mm |
| Trail | 66.8mm high |
| Mechanical Trail | 63.2mm |
| Wheel Flop | 20.3mm |
| Standover Height | 746mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 79mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 103.5mm |
A1 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 35mm |
| Tire Outer Diameter | 692mm |
| Bike Length with Tires | 1702mm |
| Crank Length | 172.5mm |
| Stem Length | 100mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 5 in to 5 ft 8.5 in |
Source:https://www.norco.com/bikes/2020/road/cyclocross/threshold-aluminum/threshold-a1/