2015 Norco Bicycles Threshold A1 55.5
Build
700C/29 in × 35 mm
Insights
Average stack and reach vs trend of cyclocross bikes
Design deviates from other sizes of Norco Bicycles Threshold
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 569mm |
| Reach | 389mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, Unknown | 555mm |
| Top Tube Length, Effective/Horizontal Center | 555mm |
| Top Tube Slope | 3.8deg |
| Head Tube Angle | 72.25deg |
| Seat Tube Angle | 73.75deg |
| Head Tube Length | 145mm |
| Bottom Bracket Drop | 67.5mm |
| Bottom Bracket Height | 278.5mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 419.6mm |
| Front-Center | 601mm |
| Front-Center Horizontal | 596.4mm |
| Wheelbase | 1016mm |
| Fork Offset/Rake | 44.6mm |
| Fork Length (On-Axis) | 395mm |
| Trail | 63.9mm mid/neutral |
| Mechanical Trail | 60.9mm |
| Wheel Flop | 18.6mm |
| Standover Height | 804mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 82.5mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 106mm |
A1 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 35mm |
| Tire Outer Diameter | 692mm |
| Bike Length with Tires | 1708mm |
| Crank Length | 172.5mm |
| Handlebar Width | 440mm |
| Stem Length | 100mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.norco.com/bike-archives/2015/threshold-a1/