2017 Norco Optic A7.1 vs 2015 Norco Fluid 7.3
The Norco Fluid 7.3 size closest to your M is the L. Compare the L instead
What changes on the Norco Fluid 7.3
Compared with the Norco Optic A7.1 in M, the Norco Fluid 7.3 in XS places the top of the head tube 23 mm lower and 41 mm further back, relative to the bottom bracket. Its wheelbase is 63 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −23 mm
- Lower front end
- Frame reach
- −41 mm
- Shorter frame reach
- Wheelbase
- −63 mm
- Shorter: quicker to change direction
- Head angle
- +0.5°
- Steeper: sharper steering
- 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 A7.1 numbers we have for size M are missing the chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Norco Optic A7.1 M | Norco Fluid 7.3 XS | Difference |
|---|---|---|---|
| Reach | 433 | 392 | −41 mm |
| Stack | 593 | 570 | −23 mm |
| Head tube angle | 68 | 68.5 | +0.5° |
| Seat tube angle | 75 | 74.5 | −0.5° |
| Wheelbase | 1142 | 1079 | −63 mm |
| BB height | 334 | 332 | −2 mm |
| Head tube length | 117 | 100 | −17 mm |
| Seat tube length | not listed | 380 |
Differences are the Norco Fluid 7.3 minus the Norco Optic A7.1. Full charts: 2017 Norco Optic A7.1, 2015 Norco Fluid 7.3.
Where each sits in its class
Norco Optic A7.1Norco 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 A7.1A7.1 | Norco Fluid 7.37.3 |
|---|---|---|
| Fork | Fox 34 Float 650B 100x15mm Performance | RockShox XC-30 TK solo air |
| Rear shock | Fox Float DPS Performane EVOL | not listed |
| Shifter | SRAM GX1 11sp | Shimano Deore M4000 rapid fire 3 sp |
| Derailleur | SRAM GX | Shimano 9 speed Deore RD Shadow type |
| Cassette | SRAM XG 1150 10-42T | Shimano CS HG 20 9 speed |
| Chain | SRAM PC 1130 11sp | KMC Z-99 chain |
| Crankset | Race Face Affect w/32T | SR Suntour XCR 44/32/22T with octalink |
| Rim | Alex Rims DP23 double wall 650B I23 tubeless compatible | WTB SX19 Double Wall |
| Brake | SRAM Level T | Shimano Acera M355 |
| Handlebar | Norco 6061 DB alloy 760mmx25mm | not listed |
| Grips | Norco Lock On Grip | Norco MTB gator design trail grip |
| Seatpost | KS E-Ten Integra Stealth w/remote | not listed |
| Saddle | SDG Circuit Mtn | WTB Volt Sport SE XC trail saddle |
| Tire | not listed | WTB Beeline 650Bx2.2 |
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
