2023 Norco Optic C1 vs 2025 Marin Rift Zone XR
The M is the Marin Rift Zone XR size closest to your S Norco Optic C1. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Marin Rift Zone XR
Compared with the Norco Optic C1 in S, the Marin Rift Zone XR in M places the top of the head tube 10 mm lower and 10 mm further forward, relative to the bottom bracket. Its wheelbase is 8 mm longer, which can contribute to stability at speed.
- Frame stack
- −10 mm
- Lower front end
- Frame reach
- +10 mm
- Longer frame reach
- Wheelbase
- +8 mm
- Longer: steadier at speed
- Head angle
- +0.1°
- About the same head angle
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Norco Optic C1, SMarin Rift Zone XR, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Norco Optic C1 S | Marin Rift Zone XR M | Difference |
|---|---|---|---|
| Reach | 420 | 430 | +10 mm |
| Stack | 611 | 600.7 | −10 mm |
| Head tube angle | 65 | 65.1 | +0.1° |
| Seat tube angle | 76 | 76.5 | +0.5° |
| Chainstay length | 425 | 430 | +5 mm |
| Wheelbase | 1157 | 1164.8 | +8 mm |
| Head tube length | 100 | not listed | |
| BB drop | not listed | 35 | |
| Standover | not listed | 691.2 |
Differences are the Marin Rift Zone XR minus the Norco Optic C1. Full charts: 2023 Norco Optic C1, 2025 Marin Rift Zone XR.
Where each sits in its class
Norco Optic C1Marin Rift Zone XR
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Norco Optic C1C1 | Marin Rift Zone XRXR |
|---|---|---|
| Frame | Norco Optic | Marin Rift Zone |
| Fork | Fox 36 Performance Elite | RockShox Lyrik Select |
| Rear shock | Fox Float DPX2 Performance Elite | RockShox Super Deluxe Select+ |
| Shifter | Shimano XTR M9100 | SRAM GX Eagle AXS Rocker |
| Derailleur | Shimano XTR M9100 | SRAM GX Eagle |
| Cassette | Shimano XTR M9100 | SRAM GX Eagle |
| Chain | Shimano XTR M9100 | SRAM NX Eagle |
| Crankset | e*thirteen TRS Race Carbon | SRAM GX Eagle AXS |
| Chainring | e*thirteen TRS Race Carbon | not listed |
| Wheelset | Stan's Flow S1 | Marin aluminum double-wall, 29mm inner, 32H |
| Tire | Vittoria Mazza, Vittoria Martello | Maxxis Assegai |
| Hub | Shimano HB-8110-B XT, Shimano FH-8110-B XT | not listed |
| Rim | Stan's Flow S1 | not listed |
| Brake | Shimano XTR M9120 | SRAM DB8 Stealth |
| Rotor | Shimano XTR MT900 Freeza | SRAM DB8 |
| Handlebar | OneUp Components Carbon | Marin Trail Bar |
| Stem | Norco CNC Alloy | not listed |
| Grips | DMR Deathgrip | not listed |
| Headset | FSA Internal Sealed Bearing | not listed |
| Dropper post | X-Fusion Manic | TranzX YSP23JL |
| Saddle | fizik Alpaca Terra | not listed |
| Bottom bracket | not listed | SRAM DUB MTB 73mm |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
