Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Wheels 27.5" -
Travel Front 120mm -
Fork Fox Factory Float 34
-
Groupset X01 Eagle, X1 -
Suspension Hardtail -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
SIR 9 - SLATE BLUE/ORANGE
Suspension Fork
FOX 34 FLOAT FACTORY FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM
Rear Shock
N/A
Drivetrain
Shift Levers
SRAM X01 EAGLE 12SP
Cassette
SRAM EAGLE XG 1295, 10-50T
Crank
SRAM X1 EAGLE CARBON GXP 32T CNC RING
Bottom Bracket
SRAM%20PF30
Chain
SRAM X01 EAGLE 12SP
Wheels
Tires
29" MAXXIS ARDENT DC/EXO/TR 2.4 or 27.5+ MAXXIS REKON+ DC/EXO/TR 2.8
Brakes
Brakes
SRAM GUIDE RSC
Brake Levers
SRAM GUIDE RSC
Cockpit
Stem
RACE FACE TURBINE BASIC 50MM, 35MM CLAMP
Handlebar
RACE FACE SIXC 820MM WIDE, 20MM RISE, 35MM CLAMP
Grips
NINER GRRRIPS L/O FLANGED
Headset
NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40
Seat
Saddle
NINER CUSTOM TR WITH CRN-TI RAILS, PRINTED NINER GRAPHIC
Seatpost
KS LEV INTEGRA
About this model
SIR 9 4-STAR is part of the Niner Sir model. 44 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
Niner SIR 9 27.5+ 1-Star 2018 is the most economical model, with a starting price of 2300$. Niner SIR 9 5-STAR 2018 on the other hand costs 5950$, and is the most expensive model.
Safety
Make sure you wear a helmet on every ride, and that your bike performs well. In short, this means checking the tires, brakes, and chain to make sure everything is in good working order.
Average price for Trail bikes
According to our math, the average price for a trustworthy Trail bike is 2762$. However, you could also get a good Trail bike even if you pay a lower amount than the average price. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
When Niner released this model in 2018, its price was 4950$. In conclusion, this bike price is 79.22% more expensive than the price of the average Trail bike.
SIR 9 4-STAR 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. To sum up, when buying a bicycle, make sure you get a fork that is capable of delivering decent travel.
Wheels
The wheels on SIR 9 4-STAR are the 27.5″ type. The 27.5″ wheels are a great choice for smaller riders. However, the overall traction of 27.5″ wheels is lower than 29″ wheels.
Brakes
Nothing is more important on a bike than its ability to brake properly. Niner SIR 9 4-STAR is equipped with Hydraulic Disc brakes. These kinds of brakes are among the most popular models used on bikes. To sum up, you can ride your bike with confidence.
Sizes
This bike has one size only, so it might not fit you. In short, make sure you double-check if it fits you.
Dropper post
The Niner model is also equipped with a dropper post. Therefore, climbing or descending will be a breeze.