2019 Norco Bicycles Threshold Aluminum Single Speed 55.5
Build
700C/29 in × 33 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 | 570mm |
| Reach | 386mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, C-T | 555mm |
| Top Tube Length, Effective/Horizontal HT Top | 555mm |
| Head Tube Angle | 72deg |
| Effective Seat Tube Angle, Unknown | 73.5deg |
| Head Tube Length | 145mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 274mm |
| Chainstay Length | 429.5mm |
| Chainstay Length Horizontal | 423.8mm |
| Front-Center | 603mm |
| Front-Center Horizontal | 599.2mm |
| Wheelbase | 1023mm |
| Fork Offset/Rake | 48.3mm |
| Fork Length (On-Axis) | 395mm |
| Trail | 61mm mid/neutral |
| Mechanical Trail | 58mm |
| Wheel Flop | 17.9mm |
| Standover Height | 804mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 86.5mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 101.5mm |
Aluminum Single Speed Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 33mm |
| Tire Outer Diameter | 688mm |
| Bike Length with Tires | 1711mm |
| 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 |
Source:https://www.norco.com/bikes/2019/dirt-dropbar/cyclocross/threshold-aluminum/threshold-aluminum-single-speed/