2020 Norco Bicycles Optic Carbon Frame Large
Build
650B/27.5 in × 2.3 in
Insights
Somewhat aggressive stack and reach vs trend of full-suspension trail mtb bikes
Design deviates from other sizes of Norco Bicycles Optic
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 602mm |
| Reach | 455mm |
| Stack to Reach Ratio | 1.32:1 |
| Seat Tube Length, C-T | 485mm |
| Top Tube Length, Effective/Horizontal HT Top | 622mm |
| Head Tube Angle | 68deg |
| Seat Tube Angle, Unknown | 74.5deg |
| Head Tube Length | 129mm |
| Bottom Bracket Drop | 18mm |
| Bottom Bracket Height | 332.4mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 434.6mm |
| Front-Center | 739mm |
| Front-Center Horizontal | 739.4mm |
| Wheelbase | 1174mm |
| Fork Offset/Rake | 44.9mm |
| Fork Length, Unknown | 518mm |
| Trail | 93.2mm very high |
| Mechanical Trail | 86.4mm |
| Wheel Flop | 32.4mm |
| Standover Height | 760mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 218.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 162.4mm |
Carbon Frame Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.3in |
| Tire Outer Diameter | 700.8mm |
| Bike Length with Tires | 1874.8mm |
| Handlebar Width | 760mm |
| Stem Length | 60mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 140mm |
| Rear Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | N/A |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 8 in to 6 ft 0 in |
Source:https://www.norco.com/bike-archives/2017/optic-c71/