Niner SIR 9 – 2-STAR SRAM SX EAGLE 2021
2021 Mountain
Estimate price |
2,550$
Weight | 13.06 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Wheels 27.5" / 29" -
Travel Front 120mm -
Fork Marzocchi Bomber Z2
-
Groupset SX Eagle, X1 -
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
HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE
Suspension Fork
MARZOCCHI BOMBER Z2 RAIL, SWEEP ADJ, 120MM, 110X15MM, 44MM OFFSET
Rear Shock
N/A
Drivetrain
Rear Derailleur
SRAM SX EAGLE 12SP
Front Derailleur
N/A
Shift Levers
SRAM SX EAGLE 12SP
Cassette
SRAM PG 1210 11-50T
Crank
SRAM X1 1K EAGLE DUB, 32T
Bottom Bracket
73mm PF30 BB Shell (Adapters Required For BSA Type BBs); compatible with Biocentric 30 BB
Chain
SRAM SX EAGLE 12SP
Wheels
Rims
Boost 12x148mm
Tires
SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6
Brakes
Brakes
SRAM LEVEL
Brake Levers
SRAM LEVEL
Disk Rotors
SRAM LEVEL
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 SOFT COMPOUND
Headset
NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40
Seat
Saddle
NINER CUSTOM TR WITH CrMo RAILS, EMBOSSED NINER GRAPHIC
Seatpost
Niner alloy, 370MM
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | SM | MD | MD | LG | LG | XL | XL |
|---|---|---|---|---|---|---|---|---|
| Wheels | 27" | 29" | 27" | 29" | 27" | 29" | 27" | 29" |
| Rider Min Height | 158 cm | 158 cm | 168 cm | 168 cm | 178 cm | 178 cm | 186 cm | 186 cm |
| Rider Max Height | 171 cm | 171 cm | 180 cm | 180 cm | 189 cm | 189 cm | 199 cm | 199 cm |
About this model
SIR 9 – 2-STAR SRAM SX EAGLE is a Niner Sir model. 44 bikes variations carry this model name so far. You can easily view all of the Niner Sir bikes models from 2021, here.
Model range prices
Niner SIR 9 – 2-STAR SRAM SX EAGLE 2021 is the most affordable bike of this model and has a price of 2550$. On the other hand, Niner SIR 9 – 5-STAR SRAM X01 EAGLE 2021, is the most expensive and costs 6290$.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Average price for Trail bikes
Our math shows that the average cost of a dependable Trail bike is 2762$. However, you could also get a good Trail bike even if you pay a lower amount than the average price. In conclusion, always check bike reviews and their components before making a purchase to make sure you don’t overpay.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 2550$. Comparing the average cost of a Trail bike to this one, you will see that SIR 9 – 2-STAR SRAM SX EAGLE price is 8.31% smaller.
Trail bikes average weight
Trail bikes weigh an average of 12.98 kg (28.62 lbs). An easier bike will give you a big advantage in climbs. However, a heavier bike can gain speed when you descend.
Niner SIR 9 – 2-STAR SRAM SX EAGLE it’s weighing 13.06 kg (28.79 lbs). At this weight, is slightly heavier than average. To sum up, it’s 0.62% heavier than the average weight of Trail bikes.
Internal Cable Routing
This bike has an internal cable routing. As a result, this helps to preserve the bike’s cables. No more cables around your bike.
SIR 9 – 2-STAR SRAM SX EAGLE components
Fork
Niner SIR 9 – 2-STAR SRAM SX EAGLE 2021 bike is equipped with the Marzocchi Bomber Z2 fork, and has 120mm travel. Bike forks absorb the shocks and give you a smooth and pleasant ride. In short, you should always ensure you have a good fork when purchasing a bike.
Wheels size
When leaving the production line, the SIR 9 – 2-STAR SRAM SX EAGLE model has 27.5″ aluminum wheels. These wheels will provide you with more control over the bike. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, your safety is in good hands.
Sizes
There are 8 sizes available for this model. Rider height can be anywhere between 158 cm – 199 cm (5.18 ft – 6.53 ft). In short, you can easily find one that suits you.