Norco Optic A3 27.5 Mountain Bike (2018)

Now $2,249.00 RRP $3,199.00 SAVE $950.00
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Norco Optic A.3 is an entry level full suspension trail bike. Suited to the rider who is either upgrading from an older mountain bike, or is looking to get into the sport with a bike that will last the distance.

The Optic features progressive trail geometry which has been carefully tuned across each frame size to give every rider the same optimal fit and ride quality, while A.R.T. suspension delivers both efficient climbing and lively, capable descending.

The Optic was designed from the ground up in two wheel sizes, offering the choice between the quick acceleration of 650B or the improved rollover and momentum of a 29er.To make your choice easier, Norco optimized the geometry of the 29er to share the same fit and handling characteristics of the 650B version

he Optic A3 has an entry level build kit to get you on the trails without costing the earth. It features Rockshox suspension front and rear, the Recon fork and Monarch shock give outstanding performance at a bargain price.

A Sram NX 1x11 setup keeps the drivetrain a simple affair, and Trans X dropper seat-post gives you on the fly saddle adjustments with a simple lever in place of your left hand shifter.

The Norco Optic A.3 is a capable dual suspension bike in two wheel sizes to suit rider size and personal preference, ideal for the trail rider who enjoys a lively and fun ride.


  • 01.FRAME Optic Aluminum 110mm (29), 120mm (650B)
  • 02.FORK Rockshox Recon RL Gold, solo air boost 120mm (29), 130mm (650B)
  • 03.REAR SHOCK Rockshox Monarch R
  • 04.HEADSET FSA #57B tapered internal
  • 05.HEADSET SPACER 3x10mm / 1x5mm / 1 x 2.5mm
  • 06.GRIPS Norco lock on grip
  • 07.HANDLE BAR Norco 25mm rise 6061 DB alloy 760mm
  • 08.STEM Alloy MTB stem 50mm (29), 60mm (650B)
  • 09.SEAT POST JD Trans X post 80mm XS, 100mm S, 125mm M, L,XL, 31.6mm
  • 10.SEAT POST CLAMP Norco Alloy Nutted Clamp
  • 11.SADDLE WTB Volt
  • 12.FRONT BRAKE Tektro HD-M285 Hydraulic w/180mm rotor
  • 13.REAR BRAKE Tektro HD-M285 Hydraulic w/160mm rotor
  • 14.BRAKE LEVERS Tektro HD-M285
  • 16.SHIFTER REAR Sram NX 11 11 speed
  • 19.CASSETTE Sram NX 11 11-42T
  • 20.CHAIN Sram 11 speed
  • 21.CRANKSET SR Suntour Zeron Boost 30T (29), 32T (650B) cranks w/1X narrow/wide
  • 22.BOTTOM BRACKET SR Suntour 73mm thread in
  • 25.FRONT HUB Novatec 110x15 sealed bearing disc hub
  • 26.FRONT HUB SKEWER axle ( comes with fork)
  • 27.REAR HUB Novatec 148x12 w 5 sealed bearing
  • 28.REAR HUB SKEWER TransX 12mm TA alloy w/allen key
  • 29.SPOKES/NIPPLES Stainless steel
  • 30.RIMS WTB STP I25, TCS 25mm inner
  • 31.FRONT TIRE Maxxis Forecaster 2.35
  • 32.REAR TIRE Maxxis Forecaster 2.35
More Information
Model Year2018
Bottom BracketSR Suntour 73mm thread in
Brake LeversTektro HD-M285
CassetteSram NX 11 11-42T
ChainSram 11 speed
CranksetSR Suntour Zeron Boost 30T (29), 32T (650B) cranks w/1X narrow/wide
Derailleur RearSram NX 11
Popular FiltersDual Suspension
ForkRockshox Recon RL Gold, solo air boost 120mm (29), 130mm (650B)
FrameOptic Aluminum 110mm (29), 120mm (650B)
GripsNorco lock on grip
HandlebarNorco 25mm rise 6061 DB alloy 760mm
HeadsetFSA #57B tapered internal
HubsNovatec 110x15 sealed bearing disc hub,Novatec 148x12 w 5 sealed bearing
RimsWTB STP I25, TCS 25mm inner
SaddleWTB Volt
SeatpostJD Trans X post 80mm XS, 100mm S, 125mm M, L,XL, 31.6mm
Rear ShockRockshox Monarch R
StemAlloy MTB stem 50mm (29), 60mm (650B)
SpokesStainless steel
Shifters,Sram NX 11 11 speed
TyresMaxxis Forecaster 2.35,Maxxis Forecaster 2.35
Product Badgediscount_30
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Mountain bikes are designed specifically for off road riding, with strong frames and components, knobby tyres and a large range of gears. While performing best off-road, mountain bikes are extremely versatile, and suitable for a variety of recreational and commuter purposes. Entry-level mountain bikes are more suited to bike paths, parks, and light use on unsealed surfaces. Progressing through the range, mountain bikes become more suited to longer rides, and rougher terrain, with a focus on durability and performance. A cheap mountain bike makes also makes a great all round commuting option. Mountain bikes can be either hardtail (front suspension only), or dual suspension (suspension in front and rear). Carbon fibre frames achieve a huge advance in performance, as the material is extremely strong, light, and stiff, achieving maximum power transfer from rider to bike.

Mountain bikes can be used for many types of riding, from riding around town to endurance off-road racing. Mountain bikes now come in 3 wheel sizes: 26 inch; 27.5 (also called 650B); and 29 inch. Generally speaking, the smaller 26 inch wheel size offers a more responsive, agile ride. The larger 29 inch wheel size has the advantage of reduced rolling resistance over rough Australian terrain, which provides easier clearance of obstacles, and general comfort over the trail. The bigger wheels also offer more tread connected with the surface, helping to increase traction. 27.5 offers the ultimate versatility - the agility and handling of traditional 26 inch wheels, with the reduced rolling resistance and improved traction and stability of a 29er. 

Womens mountain bikes are designed specifically for female riders. Generally this involves a lower top tube and standover height, which makes it easier to dismount as well as plant your feet on the ground when extra balance is required. They also features womens specfiic saddles and braking and gear set ups more suited to smaller hands.


About Norco

Norco has been a part of the bike industry for over 50 years. Much has changed but their reason for being remains the same – they are driven by a genuine passion for cycling in all its forms, and that passion is the foundation of everything they do. Bert Lewis founded Norco Bicycles in 1964 with a simple vision: build better bikes. From humble beginnings operating out of a converted chicken coop the company has grown into a global brand delivering more than 125 different models to cyclists worldwide. Norco live and breathe their promise to listen, innovate and ride, and they are eager to continue delivering to you the very best ride experiences possible. Thanks for joining Norco’s ride, and for inviting us to come along on yours.

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Norco Dual Suspension Bike Sizing Chart

  • Women
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Rider's Height (cm)

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