Overview
The Norco Optic is Norco’s trail bike, slotting below the Sight in the lineup with 140mm of front travel and 125mm of rear travel. Unlike the Sight’s VPS HP high-pivot design, the Optic uses an evolved single-pivot suspension layout that prioritizes light weight and pedaling efficiency while still delivering capable trail performance. The Optic runs 29-inch wheels and is available in five sizes (1–5) in both carbon (C1, C2, C3) and aluminum (A1) builds.
New to bike geometry? Our complete guide to mountain bike geometry explains every measurement and what it means for your riding. You can also learn how to read a geometry chart to compare this bike against other models.
Geometry is thoroughly modern with a 65° head angle, seat tube angles progressing from 76.5° (Size 1) to 77.5° (Size 5), and reach spanning 422.5mm to 522.5mm. Chainstay lengths range from 421mm to 437mm, keeping the rear end short and responsive. The 346mm bottom bracket height is 7mm lower than the Sight 150, reflecting the shorter fork travel and the Optic’s trail-focused priorities. A MX (29″/27.5″) option is available on the C2 MX build for riders who want added rear-end playfulness.
Geometry Diagram
Geometry Table
| Measurement | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Head Tube Angle | 65.0° | 65.0° | 65.0° | 65.0° | 65.0° |
| Seat Tube Angle (eff.) | 76.50° | 76.75° | 77.00° | 77.25° | 77.50° |
| Seat Tube Length | 350mm | 370mm | 385mm | 430mm | 445mm |
| Reach | 422.5mm | 447.5mm | 472.5mm | 497.5mm | 522.5mm |
| Stack | 608mm | 617mm | 626mm | 635mm | 644mm |
| Wheelbase | 1159mm | 1193mm | 1226mm | 1259mm | 1292mm |
| Chainstay Length | 421mm | 425mm | 429mm | 433mm | 437mm |
| BB Height | 346mm | 346mm | 346mm | 346mm | 346mm |
| BB Drop | 32mm | 32mm | 32mm | 32mm | 32mm |
| Head Tube Length | 100mm | 110mm | 120mm | 130mm | 140mm |
| Horizontal Top Tube | 568mm | 593mm | 617mm | 641mm | 665mm |
| Standover | 675mm | 677mm | 678mm | 707mm | 705mm |
| Trail | 128mm | 128mm | 128mm | 128mm | 128mm |
Geometry Analysis
The Optic’s 65° head angle is aggressive for a 125mm-travel trail bike — for comparison, many 140–150mm bikes from just a few years ago ran similar numbers. This gives the Optic confident descending manners that belie its moderate travel. The size-progressive seat tube angles (76.5°–77.5°) follow Norco’s Ride Aligned approach, and the 32mm BB drop is moderate — low enough for good cornering confidence without feeling unstable at slow speed. Reach figures mirror the Sight exactly (422.5–522.5mm), meaning Optic riders can expect a similar cockpit feel to their longer-travel stablemates. The 421–437mm chainstays are short and snappy, making the Optic nimble in tight terrain.
Ride Characteristics
The Optic is a trail bike that encourages aggressive riding. Despite only 125mm of rear travel, the evolved suspension design makes efficient use of every millimeter — the bike feels composed through rough terrain that you’d expect to overwhelm a sub-130mm platform. On climbs, the Optic is noticeably lighter and more efficient than the Sight, making it the better choice for rides where climbing comprises a significant portion of the day. The 65° head angle and short chainstays give the Optic a lively, engaging character on flowy singletrack — this is a bike that wants to be thrown into corners and popped off trail features. Where it reaches its limits is on sustained, rough descents at high speed, where the shorter travel and lighter-duty fork can’t match the composure of the Sight.
Key Specs
Frame: Carbon (C1, C2, C3) or Aluminum (A1). Wheel Size: 29″ (MX option on C2 MX build). Travel: 140mm fork / 125mm rear. Suspension: Evolved single-pivot. Sizes: 1, 2, 3, 4, 5. Drivetrain: SRAM GX/X0 Eagle or Shimano XT/XTR. Fork: FOX 34 / RockShox Pike. Shock: FOX Float X / RockShox Deluxe.
What’s New vs Previous Generation
The 2025 Optic features an evolved suspension layout that improves bump compliance and support through the travel compared to the previous generation. Frame updates include UDH compatibility for SRAM Eagle Transmission, improved cable routing, and the Ride Aligned five-size range. The addition of a dedicated MX (C2 MX) build is new, offering riders a mullet option without needing to source aftermarket parts. Geometry has been modernized with a slacker head angle (65° vs 66°) and steeper seat tube angles.
Who Should Consider This Bike
The Norco Optic is perfect for riders who want an agile, efficient trail bike that still handles aggressive terrain with confidence. If your rides involve significant climbing and you want a bike that rewards fitness while still handling the descent, the Optic delivers. It’s also an excellent choice for riders coming from XC backgrounds who want more capability without the weight penalty of a longer-travel platform. Riders who regularly ride very steep or rough terrain should step up to the Sight 150.
Comparable Models
The Optic competes with the Santa Cruz Tallboy (130/120mm), Trek Fuel EX (140/130mm), Specialized Epic 8 (120/120mm), and Yeti SB120 (130/120mm). The Optic’s 140/125mm travel puts it between the shorter-travel XC-trail bikes and longer-travel trail bikes. The Tallboy is the closest competitor with VPP suspension and similar travel. The Trek Fuel EX offers slightly more travel in a similar package, while the Epic 8 and SB120 are lighter but less capable on descents.
Related Geometry
More Norco geometry: 2023 Norco Fluid FS Geometry, 2023 Norco Fluid VLT Geometry, 2023 Norco Optic Geometry, 2023 Norco Range Geometry, 2023 Norco Range VLT Geometry.
Compare trail bikes: 2023 Giant Stance Geometry, 2023 Giant Trance Geometry, 2023 Trek Remedy Geometry.
Frequently Asked Questions
What is the travel on the Norco Optic?
The Norco Optic has 125mm of rear travel paired with a 140mm fork. This places it in the short-travel trail bike category, above XC bikes but below all-mountain platforms like the Sight.
Does the Norco Optic come in a mullet option?
Yes. The Optic C2 MX build comes with a mixed-wheel (mullet) setup: 29″ front and 27.5″ rear. Other builds run full 29″ wheels. Both wheel configurations share the same frame geometry.
Is the Optic suspension the same as the Sight’s VPS HP?
No. The Optic uses an evolved single-pivot suspension design, which is different from the Sight’s VPS HP (High Pivot) layout. The Optic’s suspension prioritizes lightweight and pedaling efficiency, while the Sight’s high-pivot design maximizes bump absorption.
How does the Norco Optic compare to the Sight 150?
The Optic (140/125mm) is lighter, climbs better, and is more nimble than the Sight 150 (160/150mm). The Sight 150 is more capable on steep, rough descents and uses VPS HP high-pivot suspension. Choose the Optic for trail riding with lots of climbing; choose the Sight 150 for more aggressive terrain.
What sizes does the Norco Optic come in?
The Optic comes in five sizes numbered 1 through 5, following Norco’s Ride Aligned sizing system, with size-specific geometry including progressive seat tube angles and chainstay lengths.