2017 Norco Optic C9.1 vs 2015 Norco Fluid 7.3
The XL is the Norco Fluid 7.3 size closest to your L Norco Optic C9.1. 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 Norco Fluid 7.3
Compared with the Norco Optic C9.1 in L, the Norco Fluid 7.3 in XL places the top of the head tube 9 mm lower and 8 mm further forward, relative to the bottom bracket. Its wheelbase is 5 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −9 mm
- Lower front end
- Frame reach
- +8 mm
- Longer frame reach
- Wheelbase
- −5 mm
- Shorter: quicker to change direction
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Norco Optic C9.1 numbers we have for size L are missing the chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Norco Optic C9.1 L | Norco Fluid 7.3 XL | Difference |
|---|---|---|---|
| Reach | 464 | 472 | +8 mm |
| Stack | 607 | 598 | −9 mm |
| Head tube angle | 68.5 | 68.5 | ±0.0° |
| Seat tube angle | 74.5 | 74.5 | ±0.0° |
| Wheelbase | 1175 | 1170 | −5 mm |
| BB height | 332 | 332 | ±0 mm |
| Head tube length | 100 | 130 | +30 mm |
| Seat tube length | not listed | 510 |
Differences are the Norco Fluid 7.3 minus the Norco Optic C9.1. Full charts: 2017 Norco Optic C9.1, 2015 Norco Fluid 7.3.
Where each sits in its class
Norco Optic C9.1Norco Fluid 7.3
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 C9.1C9.1 | Norco Fluid 7.37.3 |
|---|---|---|
| Fork | Fox 34 Float 29 Boost 110x15mm Factory | RockShox XC-30 TK solo air |
| Shifter | SRAM X1 11sp | Shimano Deore M4000 rapid fire 3 sp |
| Derailleur | SRAM XX1 | Shimano 9 speed Deore RD Shadow type |
| Cassette | SRAM XG 1175 11sp 10-42T | Shimano CS HG 20 9 speed |
| Chain | SRAM PC X1 11sp | KMC Z-99 chain |
| Crankset | Race Face Next SL carbon 32T | SR Suntour XCR 44/32/22T with octalink |
| Rim | DT Swiss XMC 1200 Carbon 29er wheelset | WTB SX19 Double Wall |
| Brake | SRAM Guide Ultimate | Shimano Acera M355 |
| Handlebar | Race Face Next Carbon | not listed |
| Stem | Race Face Turbine 35 | not listed |
| Grips | SDG ODI USA lock on grips | Norco MTB gator design trail grip |
| Seatpost | RockShox Reverb Stealth | not listed |
| Saddle | SDG Circuit Mtn with chromoly rails | WTB Volt Sport SE XC trail saddle |
| Tire | not listed | WTB Beeline 650Bx2.2 |
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