Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 29" -
Travel Front 120mm -
Fork Fox Rhythm Float 34
-
Groupset GX, Truvativ Stylo -
Suspension Hardtail -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
XS
156cm - 166cm
SM
163cm - 174cm
MD
171cm - 182cm
LG
179cm - 189cm
XL
185cm - 195cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Aluminum
Suspension Fork
FOX 34 Float Rhythm, GRIP damper, EVOL air canister
Rear Shock
N/A
Drivetrain
Rear Derailleur
SRAM Eagle GX, 12-speed
Front Derailleur
N/A
Shift Levers
SRAM Eagle GX, 12-speed
Cassette
SRAM XG-1275, 10-50 tooth
Crank
SRAM Stylo 7K Eagle
Bottom Bracket
Pressfit
Chain
SRAM GX Eagle, 12-speed
Chain Guide
N/A
Pedals
N/A
Wheels
Front Hub
Niner Alloy 29", 15mm x 110mm, 12mm x 148mm
Rear Hub
Niner Alloy 29", 15mm x 110mm, 12mm x 148mm
Rims
Niner Alloy 29"
Tires
Front: Maxxis Ardent F60 2.4", soft compound, Rear: Maxxis Ardent F60 2.25", soft compound
Brakes
Brakes
SRAM Guide R, 180mm front / 160mm rear rotors
Brake Levers
SRAM Guide R
Cockpit
Stem
Race Face Aeffect R, 50mm length
Handlebar
Race Face Aeffect R, 780mm width, 20mm rise
Grips
Niner Grrrips, nylon flanges
Headset
Niner headset, integrated SHIS, IS42 top, IS52 bottom
Seat
Saddle
Niner Custom TR, chromoly rails, printed Niner graphic
Seatpost
KS Lev Integra SI
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.53 mm | 1.48 mm | 1.45 mm | 1.42 mm | 1.4 mm |
| Bottom Bracket Height | 322 mm | 322 mm | 322 mm | 322 mm | 322 mm |
| Front Center | 680 mm | 695 mm | 714 mm | 740 mm | 767 mm |
| Rake | 54 mm | 54 mm | 53 mm | 54 mm | 54 mm |
| Trail | 93 mm | 93 mm | 94 mm | 93 mm | 93 mm |
| Stack | 617 mm | 617 mm | 627 mm | 641 mm | 659 mm |
| Reach | 402 mm | 417 mm | 432 mm | 452 mm | 472 mm |
| Top Tube Length | 577 mm | 592 mm | 610 mm | 634 mm | 659 mm |
| Seat Tube Angle | 74 ° | 74 ° | 74 ° | 74 ° | 74 ° |
| Seat Tube Length | 356 mm | 394 mm | 419 mm | 483 mm | 533 mm |
| Head Tube Angle | 68 ° | 68 ° | 68 ° | 68 ° | 68 ° |
| Head Tube Length | 100 mm | 100 mm | 110 mm | 125 mm | 145 mm |
| Chainstay Length | 434 mm | 434 mm | 434 mm | 434 mm | 434 mm |
| Wheelbase | 1109 mm | 1124 mm | 1143 mm | 1169 mm | 1196 mm |
| Bottom Bracket Drop | 52 mm | 52 mm | 52 mm | 52 mm | 52 mm |
| Standover Height | 705 mm | 736 mm | 755 mm | 807 mm | 848 mm |
| Wheels | 29" | 29" | 29" | 29" | 29" |
| Rider Min Height | 156 cm | 163 cm | 171 cm | 179 cm | 185 cm |
| Rider Max Height | 166 cm | 174 cm | 182 cm | 189 cm | 195 cm |
About this model
Air 9 29 2-Star belongs to the Niner Air model. 64 bikes variations carry this model name so far. You can get a glimpse at all models from 2018, by clicking on this link.
Model range prices
The most economical model, the Niner Air 9 29 1-Star 2018 has a starting price of 1700$. Niner AIR 9 RDO 5-STAR 2018 on the other hand is the most expensive at 6300$.
Safety
Your safety is a top priority so always wear a helmet when you ride your bike. Moreover, wear the right clothing. You want to be visible to other drivers, so avoid wearing dark clothing.
Average price for Trail bikes
According to our math, the average price for a trustworthy Trail bike is 2762$. However, this doesn’t mean that if you spend less money on a Trail bike, you couldn’t get a decent one. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 2600$. In conclusion, this bike price is 6.23% smaller than the price of the average Trail bike.
Air 9 29 2-Star components
Fork
The Air 9 29 2-Star comes factory-installed with the Fox Rhythm Float 34 fork. This has a travel range of 120mm. Bike forks are great for shock absorption and provide you with a smooth ride. To sum up, when buying a bicycle, make sure you get a fork that is capable of delivering decent travel.
Wheels
As for the wheels, Niner Air 9 29 2-Star 2018, has a 29″ aluminum model. Having 29″ wheels means that you need less fork travel, leading to a reduction of the pedal bob effect. However, if you’re not a tall person, you might find it difficult to adapt to this wheel size.
Brakes
For your safety, it is important to have quality breaks on your bike. Niner Air 9 29 2-Star has Hydraulic Disc brakes installed. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, these are ideal for anyone.
Sizes
Niner Air 9 29 2-Star bike has 5 sizes, in the range of 156 cm – 195 cm (5.12 ft – 6.4 ft). In short, you can easily find one that suits you.
Dropper post
The Niner model is also equipped with a dropper post. If used correctly, a dropper post gives you more faith, maneuverability, and greater control over your bike.