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Niner SIR 9 – 3-Star GX Eagle – 29 2019

2019 Mountain
Estimate price | 4,050$
Weight | 12 kg
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Niner Sir 9 3 Star Gx Eagle 29 2019

Bike details

Overview

Key information split into simple groups.

Bike summary

  • Category
  • Frame Steel
  • Wheels 27.5" / 29"
  • Travel Front 120mm
  • Fork Fox Factory Float 34
  • Groupset GX Eagle, Truvativ Descendant
  • Suspension Hardtail
  • Drivetrain 1 × 12
  • Brakes Hydraulic Disc
Sizing

Recommended size guide.

  • SM

    158cm - 171cm

  • SM

    158cm - 171cm

  • MD

    168cm - 180cm

  • MD

    168cm - 180cm

  • LG

    178cm - 189cm

  • LG

    178cm - 189cm

  • XL

    186cm - 199cm

  • XL

    186cm - 199cm

Parts list

Components

Main components, grouped by system.

Bike components

Frame

Frame

Reynolds 853 air hardened steel, welded

Suspension Fork

FOX 34 SC FLOAT FACTORY FIT4 EVOL, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM, 51MM OFFSET

Rear Shock

N/A

Drivetrain

Rear Derailleur

SRAM GX EAGLE 12SP

Front Derailleur

N/A

Shift Levers

SRAM GX EAGLE 12SP

Cassette

SRAM EAGLE XG 1275, 10-50T

Crank

SRAM DESCENDANT 7K EAGLE DUB 32T

Bottom Bracket

73mm PF30 BB Shell (Adapters Required For BSA Type BBs); compatible with Biocentric 30 BB

Chain

SRAM GX EAGLE 12SP

Wheels

Rims

Boost 12x148mm

Tires

MAXXIS MINION DHF 3C/EXO/TR 29x2.5 or REKON+ DC/EXO/TR 27.5x2.8

Brakes

Brakes

SRAM GUIDE R

Brake Levers

SRAM GUIDE R

Disk Rotors

180/160MM SRAM G2CS ROTORS

Cockpit

Stem

RACE FACE AEFFECT R 40MM, 35MM CLAMP

Handlebar

RACE FACE AEFFECT R 780MM WIDE, 20MM RISE, 35MM CLAMP

Grips

NINER GRRRIPS L/O NYLON FLANGED

Headset

NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40

Seat

Saddle

NINER CUSTOM TR WITH CR-MO RAILS, PRINTED NINER GRAPHIC

Seatpost

KS LEV SI

Fit data

Geometry

Numbers for sizing and ride feel.

SizeSMSMMDMDLGLGXLXL
Wheels27"29"27"29"27"29"27"29"
Rider Min Height158 cm158 cm168 cm168 cm178 cm178 cm186 cm186 cm
Rider Max Height171 cm171 cm180 cm180 cm189 cm189 cm199 cm199 cm

About this model

SIR 9 – 3-Star GX Eagle – 29 belongs to the Niner Sir model. Niner launched 44 bikes of this model so far. Take a sneak peek at all Niner Sir bikes models from 2019, by clicking here.

Model range prices

Niner SIR 9 – 2-Star NX Eagle – 27.5+ 2019 is the cheapest bike model and costs 2600$. Niner SIR 9 – 5-Star X01 Eagle – 29 2019 is the most expensive one and costs 6500$.

Safety

When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.

Average price for Trail bikes

Our math shows that the average cost of a dependable Trail bike is 2762$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Trail bike. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.

At the moment of the release date, Niner SIR 9 – 3-Star GX Eagle – 29 price was 4050$. If we compare this with the average Trail bike cost we notice that the price is 46.63% more expensive.

Trail bikes average weight

If we make a quick analysis of the average weight of a Trail bike, we get 12.98 kg (28.62 lbs). A lighter bike will give you some extra advantage when climbing. A heavier bike will have more speed for descents.

SIR 9 – 3-Star GX Eagle – 29 weighs 12 kg (26.46 lbs) and is a bit lighter than the average. In other words, this model is 8.17% lighter than the average Trail bike.

Overview of components

Fork

The Fox Factory Float 34 is included from the factory. It has a travel distance of 120mm. Bike forks absorb the shocks and give you a smooth and pleasant ride. In conclusion, always look for a fork with decent travel when you buy a bike.

Wheels

When it comes to wheels, the SIR 9 – 3-Star GX Eagle – 29 bike is equipped with the 27.5″ aluminum model. 27.5″ wheels will reach higher speeds than smaller-sized wheels. However, the 27.5″ wheels are less forgiving than the 29″ wheels.

Brakes

Nothing is more important on a bike than its ability to brake properly. Niner SIR 9 – 3-Star GX Eagle – 29 is equipped with Hydraulic Disc brakes. These kinds of brakes are among the most popular models used on bikes. To sum up, your safety is in good hands.

Sizes

This bike is available in 8 sizes. They vary from 158 cm – 199 cm (5.18 ft – 6.53 ft). In short, you can easily find one that suits you.

Dropper post

Every bike should have a dropper post, and this one does. Therefore, climbing or descending will be a breeze.