2018 Norco Optic A3 27.5

2018 Norco Optic A3 27.5
  • $2,299 MSRP
  • Full suspension
  • 130mm front, 120mm rear travel
  • Aluminum frame
  • RockShox Recon
    fork
  • 27.5″ Aluminum wheels
  • 1 × 11 drivetrain
  • SRAM NX
    groupset

Norco’s 2018 Optic A3 27.5 is a mid-range component level aluminum frame trail bike.

norco.com

Build
FrameOptic Aluminum 110mm (29), 120mm (650B)
ForkRockshox Recon RL Gold, solo air boost 120mm (29), 130mm (650B)
Rear ShockRockshox Monarch R
Bottom BracketSR Suntour 73mm thread in
HeadsetFSA #57B tapered internal
StemAlloy MTB stem 50mm (29), 60mm (650B)
HandlebarNorco 25mm rise 6061 DB alloy 760mm
SaddleWTB Volt
SeatpostJD Trans X post 80mm XS, 100mm S, 125mm M, L,XL, 31.6mm
Pedals
GripsNorco lock on grip
Components
Front Derailleur
Rear DerailleurSRAM NX 11
ShiftersSRAM NX 11 11 speed
CrankSR Suntour Zeron Boost 30T (29), 32T (650B) cranks w/1X narrow/wide
CassetteSRAM NX 11 11-42T
ChainSRAM 11 speed
Chain Guide
BrakesTektro HD-M285 Hydraulic w/180mm rotor
Brake LeversTektro HD-M285
Wheels
RimsWTB STP I25, TCS 25mm inner
SpokesStainless steel
Front HubNovatec 110x15 sealed bearing disc hub
Rear HubNovatec 148x12 w 5 sealed bearing
TiresMaxxis Forecaster 2.35
Gearing
1 × 11 — 11 speed
2018 Norco Optic A3 27.5
22 mph
Similar Bikes
26 mph

The 2018 Optic A3 27.5 is geared about the same as similar bikes for riding up hills.

The 2018 Optic A3 27.5 won‘t keep up with similar bikes while riding downhill or sprinting.

Geometry

Oh snap! This frame was drawn from the actual bike geometry measurements. Roll over the table below to highlight frame dimensions.

Size
Stack 575584
Reach 388410
Stack/Reach Ratio1.481.42
Top Tube Length 532562
Seat Tube Length 380410
Seat Tube Angle75.975.5
Head Tube Length 97107
Head Tube Angle68.068.0
BB Drop 1818
BB Height 334334
Front Center 660687
Chainstay Length 420425
Wheelbase 1,0801,111
Rake 4444
Standover Height 752749
Front Travel 130130
Rear Travel 120120
🐐 Measurements listed in millimeters and degrees
  • $2,299 MSRP
  • Full suspension
  • 130mm front, 120mm rear travel
  • Aluminum frame
  • RockShox Recon
    fork
  • 27.5″ Aluminum wheels
  • 1 × 11 drivetrain
  • SRAM NX
    groupset
Gearing
1 × 11 — 11 speed
2018 Norco Optic A3 27.5
22 mph
Similar Bikes
26 mph

The 2018 Optic A3 27.5 is geared about the same as similar bikes for riding up hills.

The 2018 Optic A3 27.5 won‘t keep up with similar bikes while riding downhill or sprinting.

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