Niner SIR 9 – 4-STAR SHIMANO XT 2021
2021 Mountain
Estimate price |
4,800$
Weight | 12.56 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Wheels 27.5" / 29" -
Travel Front 120mm -
Fork Fox Factory Float 34
-
Groupset XT, Race Face -
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
FOX 34 SC FLOAT FACTORY EVOL FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM, 44MM OFFSET
Rear Shock
N/A
Drivetrain
Rear Derailleur
SHIMANO XT M8100 SGS 12SP
Front Derailleur
N/A
Shift Levers
SHIMANO XT M8100 12SP I-SPEC EV
Cassette
SHIMANO XT M8100 12SP, 10-51T
Crank
RACEFACE NEXT R CARBON 12SP, 32T
Bottom Bracket
73mm PF30 BB Shell (Adapters Required For BSA Type BBs); compatible with Biocentric 30 BB
Chain
SHIMANO XT M8100 W/ QUICKLINK
Wheels
Rims
Boost 12x148mm
Tires
SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6
Brakes
Brakes
SHIMANO XT M8100, METAL PAD W/ FIN
Brake Levers
SHIMANO XT M8100
Disk Rotors
180/160 MT800 ROTORS
Cockpit
Stem
RACE FACE TURBINE R 40MM, 35MM CLAMP
Handlebar
RACE FACE NEXT R 800MM WIDE, 35MM RISE, 35MM CLAMP
Grips
NINER GRRRIPS L/O SOFT COMPOUND
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 SI (XS/S-100MM, M/L/XL-150MM)
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 – 4-STAR SHIMANO XT is part of the Niner Sir model. There are 44 bikes that carry this model name. You can get a glimpse at all models from 2021, by clicking on this link.
Model range prices
Niner SIR 9 – 2-STAR SRAM SX EAGLE 2021 is the cheapest bike model and costs 2550$. Niner SIR 9 – 5-STAR SRAM X01 EAGLE 2021 is the most expensive one and costs 6290$.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Trail bikes average price
If you want to purchase a solid Trail bike, it is important to know that the average cost is 2762$. However, even though the average price of a Trail bike is lower, you might still be able to get a top-quality bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, this bike was made available in 2021 for 4800$. In conclusion, this bike price is 73.79% higher than the price of the average Trail bike.
Average weight for Trail bikes
If we make a quick analysis of the average weight of a Trail bike, we get 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.
Weighing 12.56 kg (27.69 lbs), the SIR 9 – 4-STAR SHIMANO XT model is slightly lighter than average. To sum up, it’s 3.34% lighter 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 – 4-STAR SHIMANO XT components
Fork
Niner SIR 9 – 4-STAR SHIMANO XT 2021 bike is equipped with the Fox Factory Float 34 fork, and has 120mm travel. Bike forks are perfect to absorb shocks and provide a great riding experience overall. In short, make sure you choose one with a decent fork when you purchase your dream bike.
Wheels
When it comes to wheels, the SIR 9 – 4-STAR SHIMANO XT bike is equipped with the 27.5″ aluminum model. The 27.5″ wheels are a great choice for smaller riders. However, the 27.5″ wheels are less forgiving than the 29″ wheels.
Brakes
When you want to stop the bike in time, the brakes are vital. The SIR 9 – 4-STAR SHIMANO XT has Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, you can ride your bike with confidence.
Sizes
Niner SIR 9 – 4-STAR SHIMANO XT bike has 8 sizes, in the range of 158 cm – 199 cm (5.18 ft – 6.53 ft). In conclusion, it won’t take much to find one that’s right for you.
Dropper post
A dropper post is included with the SIR 9 – 4-STAR SHIMANO XT. Needless to say, a dropper post will come in handy on climbs and descends. You’ll fall in love with it at first sight!